GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Features RoHS Compliant Applications Ultra low height design for very dense power applications. Small size: 20.32 mm x 11.43 mm x 2.8 mm (Max) (0.8 in x 0.45 in x 0.11 in) Output voltage programmable from 0.6Vdc to 5.5Vdc via external resistor. Digitally adjustable down to 0.45Vdc Wide Input voltage range (3Vdc-14.4Vdc) Wide operating temperature range [-40C to 105C]. See derating curves DOSA approved footprint Digital interface through the PMBusTM # protocol Tunable LoopTM to optimize dynamic output voltage response Flexible output voltage sequencing EZ-SEQUENCE Distributed power architectures Power Good signal Intermediate bus voltage applications Remote On/Off Telecommunications equipment Servers and storage applications Fixed switching frequency with capability of external synchronization Networking equipment Output overcurrent protection (non-latching) Industrial equipment Ability to sink and source current Compatible in a Pb-free or SnPb reflow environment UL* 60950-1Recognized, CSA C22.2 No. 60950-1-03 Certified, and VDE 0805:2001-12 (EN60950-1) Licensed Compliant to RoHS II EU "Directive 2011/65/EU" Compliant to REACH Directive (EC) No 1907/2006 Compliant to IPC-9592 (September 2008), Category 2, Class II ISO** 9001 and ISO 14001 certified manufacturing facilities Vin+ VIN PGOOD Vout+ VOUT VS+ RTUNE MODULE SEQ Cin ON/OFF GND CTUNE CLK TRIM DATA ADDR0 SMBALRT# ADDR1 Co RTrim RADDR1 RADDR0 SIG_GND SYNC GND VS- Description The 6A Digital SlimLynxTM Open Frame power modules are non-isolated dc-dc converters that can deliver up to 6A of output current. These modules operate over a wide range of input voltage (VIN = 3Vdc-14.4Vdc) and provide a precisely regulated output voltage from 0.45Vdc to 5.5Vdc, programmable via an external resistor and PMBus control. Features include a digital interface using the PMBus protocol, remote On/Off, adjustable output voltage, over current and over temperature protection in the controller. The PMBus interface supports a range of commands to both control and monitor the module. The module also includes the Tunable LoopTM feature that allows the user to optimize the dynamic response of the converter to match the load with reduced amount of output capacitance leading to savings on cost and PWB area. * UL is a registered trademark of Underwriters Laboratories, Inc. CSA is a registered trademark of Canadian Standards Association. VDE is a trademark of Verband Deutscher Elektrotechniker e.V. ** ISO is a registered trademark of the International Organization of Standards # The PMBus name and logo are registered trademarks of the System Management Interface Forum (SMIF) June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Device Symbol Min Max Unit All VIN -0.3 15 V 7 V Input Voltage Continuous SEQ, SYNC, VS+ All CLK, DATA, SMBALERT# All 3.6 V Operating Ambient Temperature All TA -40 105 C All Tstg -55 125 C (see Thermal Considerations section) Storage Temperature Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Parameter Device Symbol Min Typ Max Unit Operating Input Voltage All VIN 3 14.4 Vdc Maximum Input Current All IIN,max 6 Adc VO,set = 0.6 Vdc IIN,No load 31.3 mA VO,set = 5Vdc IIN,No load 178.7 mA Input Stand-by Current (VIN = 12Vdc, module disabled) All IIN,stand-by 11 mA Inrush Transient All I2t Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1H source impedance; VIN =0 to 14V, IO= IOmax ; See Test Configurations) All 37.6 mAp-p Input Ripple Rejection (120Hz) All -55 dB (VIN=3V to 14V, IO=IO, max ) Input No Load Current (VIN = 12Vdc, IO = 0, module enabled) June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. 1 A2s Page 2 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Electrical Specifications (continued) Parameter Device Symbol Min Output Voltage Set-point (with 0.1% tolerance for external resistor used to set output voltage) All VO, set -1.0 Output Voltage (Over all operating input voltage, resistive load, and temperature conditions until end of life) All VO, set -3.0 Adjustment Range (selected by an external resistor) (Some output voltages may not be possible depending on the input voltage - see Feature Descriptions Section) All VO 0.6 PMBus Adjustable Output Voltage Range All VO,adj -25 PMBus Output Voltage Adjustment Step Size All Remote Sense Range All Typ 0 Max Unit +1.0 % VO, set +3.0 % VO, set 5.5 Vdc +25 %VO,set 0.4 %VO,set 0.5 Vdc Output Regulation (for VO 2.5Vdc) Line (VIN=VIN, min to VIN, max) All +0.4 % VO, set Load (IO=IO, min to IO, max) All 10 mV Output Regulation (for VO < 2.5Vdc) Line (VIN=VIN, min to VIN, max) All 5 mV Load (IO=IO, min to IO, max) All 10 mV Temperature (Tref=TA, min to TA, max) All 0.4 % VO, set 50 100 mVpk-pk 20 38 mVrms Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max Co = 3x47F // 1 F // 2x47nF ceramic capacitors) Peak-to-Peak (5Hz to 20MHz bandwidth) RMS (5Hz to 20MHz bandwidth) External Capacitance All All 1 Without the Tunable LoopTM ESR 1 m All CO, max 1x47 2x47 F ESR 0.15 m All CO, max 2x47 1000 F ESR 10 m 5000 F 6 Adc With the Tunable Loop TM All CO, max 2x47 Output Current (in either sink or source mode) All Io 0 Output Current Limit Inception (Hiccup Mode) (current limit does not operate in sink mode) All IO, lim 130 % Io,max Output Short-Circuit Current All IO, s/c 1.3 Arms VO,set = 0.6Vdc 72.6 % VIN= 12Vdc, TA=25C VO, set = 1.2Vdc 82.5 % IO=IO, max , VO= VO,set VO,set = 1.8Vdc 86.1 % VO,set = 2.5Vdc 88.0 % VO,set = 3.3Vdc 89.4 % VO,set = 5.0Vdc 91.5 % All fsw (VO250mV) ( Hiccup Mode ) Efficiency Switching Frequency 800 kHz 1 External capacitors may require using the new Tunable LoopTM feature to ensure that the module is stable as well as getting the best transient response. See the Tunable LoopTM section for details. June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 3 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Electrical Specifications (continued) Parameter Device Frequency Synchronization Symbol Min Typ Max Unit 760 800 840 kHz All Synchronization Frequency Range All High-Level Input Voltage All Low-Level Input Voltage All VIL 0.4 V Input Current, SYNC All ISYNC 100 nA Minimum Pulse Width, SYNC All tSYNC 100 ns Maximum SYNC rise time All tSYNC_SH 100 ns VIH 2 V General Specifications Parameter Device Calculated MTBF (IO=0.8IO, max, TA=40C) Telecordia Issue 2 Method 1 Case 3 Min All Weight Typ Max 77,807,049 Unit Hours 1.186 g (oz.) Feature Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information. Parameter Device Symbol Input High Current All IIH Input High Voltage All VIH Input Low Current All Input Low Voltage All Min Typ Max Unit 1 mA 2 VIN,max V IIL 1 mA VIL -0.2 0.6 V On/Off Signal Interface (VIN=VIN, min to VIN, max ; open collector or equivalent, Signal referenced to GND) Device code with suffix "4" - Positive Logic (See Ordering Information) Logic High (Module ON) Logic Low (Module OFF) Device Code with no suffix - Negative Logic (See Ordering Information) (On/OFF pin is open collector/drain logic input with external pull-up resistor; signal referenced to GND) Logic High (Module OFF) Input High Current All IIH 1 mA Input High Voltage All VIH 2 VIN, max Vdc Input low Current All IIL 50 A Input Low Voltage All VIL -0.2 0.6 Vdc Logic Low (Module ON) June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 4 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Feature Specifications (cont.) Parameter Device Symbol Min Typ Max Units Case 1: On/Off input is enabled and then input power is applied (delay from instant at which VIN = VIN, min until Vo = 10% of Vo, set) All Tdelay 0.9 msec Case 2: Input power is applied for at least one second and then the On/Off input is enabled (delay from instant at which Von/Off is enabled until Vo = 10% of Vo, set) All Tdelay 0.8 msec Output voltage Rise time (time for Vo to rise from 10% of Vo, set to 90% of Vo, set) All Trise 2 msec Turn-On Delay and Rise Times (VIN=VIN, nom, IO=IO, max , VO to within 1% of steady state) Output voltage overshoot (TA = 25oC VIN= VIN, min to VIN, max,IO = IO, min to IO, max) With or without maximum external capacitance 3 % VO, set Over Temperature Protection (PWM controller) (See Thermal Considerations section) All Tref 130 C PMBus Over Temperature Warning Threshold * All TWARN 120 C Tracking Accuracy (Power-Up: 2V/ms) All VSEQ -Vo 100 mV (Power-Down: 2V/ms) All VSEQ -Vo 100 mV (VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo) Input Undervoltage Lockout Turn-on Threshold All 2.475 3.025 Vdc Turn-off Threshold All 2.25 2.75 Vdc Hysteresis All PMBus Adjustable Input Under Voltage Lockout Thresholds All Resolution of Adjustable Input Under Voltage Threshold All 0.25 2.5 Vdc 14 Vdc 500 mV PGOOD (Power Good) Signal Interface Open Drain, Vsupply 5VDC Overvoltage threshold for PGOOD ON All 108 Overvoltage threshold for PGOOD OFF All 110 Undervoltage threshold for PGOOD ON All %VO, set %VO, set %VO, 92 set %VO, Undervoltage threshold for PGOOD OFF All 90 Pulldown resistance of PGOOD pin All 50 Sink current capability into PGOOD pin All 5 mA set * Over temperature Warning - Warning may not activate before alarm and unit may shutdown before warning June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 5 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Digital Interface Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information. Parameter Conditions Symbol Min Typ Max Unit Input High Voltage (CLK, DATA) VIH 2.1 Input Low Voltage (CLK, DATA) VIL Input high level current (CLK, DATA) IIH -10 10 A Input low level current (CLK, DATA) IIL -10 10 A 0.4 V 10 A PMBus Signal Interface Characteristics Output Low Voltage (CLK, DATA, SMBALERT#) IOUT=2mA VOL Output high level open drain leakage current (DATA, SMBALERT#) VOUT=3.6V IOH Pin capacitance 0 CO PMBus Operating frequency range 3.6 V 0.8 V 0.7 pF Slave Mode FPMB 10 Receive Mode Transmit Mode tHD:DAT 0 300 ns tSU:DAT 250 ns Read delay time tDLY 153 Output current measurement range IRNG 0 Output current measurement resolution IRES 62.5 Output current measurement gain accuracy at 25C (with IOUT, CORR) IACC 5 % Output current measurement offset IOFST 0.1 A Data hold time Data setup time 400 kHz Measurement System Characteristics VOUT measurement range VOUT(rng) VOUT measurement resolution VOUT(res) VOUT measurement accuracy VOUT(ACC) -15 VOUT measurement offset VOUT(ofst) VIN measurement range VIN(rng) 192 231 9 s A mA 0 5.5 15.625 V mV 15 % -3 3 % 3 14.4 V VIN measurement resolution VIN(res) VIN measurement accuracy VIN(ACC) -15 15 % VIN measurement offset VIN(ofst) -5.5 1.4 LSB June 15, 2016 32.5 (c)2016 General Electric Corporation. All rights reserved. mV Page 6 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Characteristic Curves The following figures provide typical characteristics for the 6A Digital SlimLynxTM at 0.6Vo and 25oC. 80 7 6 75 OUTPUT CURRENT, Io (A) Vin=3V EFFICIENCY, (%) 70 65 Vin=14.4V Vin=12V 60 55 0.5m/s (100LFM) 4 1m/s 3 (200LFM) 2 1 50 0 1 2 3 4 5 80 6 OUTPUT CURRENT, IO (A) 85 90 OUTPUT VOLTAGE VO (V) (20mV/div) IO (A) (2Adiv) INPUT VOLTAGE VIN (V) (5V/div) VO (V) (200mV/div) VON/OFF (V) (5V/div) Figure 4. Transient Response to Dynamic Load Change from 50% to 100% at 12Vin, Cout=3x47uF+3x330uF, CTune=15nF, RTune=200 OUTPUT VOLTAGE ON/OFF VOLTAGE VO (V) (200mV/div) 105 TIME, t (20s /div) Figure 3. Typical output ripple and noise (CO=1x47F ceramic, VIN = 12V, Io = Io,max, ). OUTPUT VOLTAGE 100 Figure 2. Derating Output Current versus Ambient Temperature and Airflow. TIME, t (200ns/div) TIME, t (2ms/div) TIME, t (2ms/div) Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max). June 15, 2016 95 AMBIENT TEMPERATURE, TA OC OUTPUT CURRENT, VO (V) (10mV/div) Figure 1. Converter Efficiency versus Output Current. OUTPUT VOLTAGE NC 5 Figure 6. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). (c)2016 General Electric Corporation. All rights reserved. Page 7 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Characteristic Curves The following figures provide typical characteristics for the 6A Digital SlimLynxTM at 1.2Vo and 25oC. 7 88 1.5m/s (300LFM) 86 6 84 OUTPUT CURRENT, Io (A) Vin=3V EFFICIENCY, (%) 82 80 78 Vin=12V 76 Vin=14.4V 74 72 70 1m/s (200LFM) 4 0.5m/s (100LFM) 1 2 3 4 5 6 3 2 65 OUTPUT CURRENT, IO (A) 70 75 OUTPUT VOLTAGE VO (V) (20mV/div) IO (A) (2Adiv) INPUT VOLTAGE VIN (V) (5V/div) VO (V) (500mV/div) VON/OFF (V) (5V/div) 95 100 105 OC Figure 10. Transient Response to Dynamic Load Change from 50% to 100% at 12Vin, Cout = 3x47uF+1x330uF, CTune = 4700pF & RTune = 300 OUTPUT VOLTAGE ON/OFF VOLTAGE 90 TIME, t (20s /div) Figure 9. Typical output ripple and noise (CO=1x47F ceramic, VIN = 12V, Io = Io,max, ). VO (V) (500mV/div) 85 AMBIENT TEMPERATURE, TA TIME, t (200ns/div) TIME, t (2ms/div) TIME, t (2ms/div) Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max). June 15, 2016 80 Figure 8. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT CURRENT VO (V) (10mV/div) Figure 7. Converter Efficiency versus Output Current. OUTPUT VOLTAGE NC 1 0 OUTPUT VOLTAGE 5 Figure 12. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). (c)2016 General Electric Corporation. All rights reserved. Page 8 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Characteristic Curves The following figures provide typical characteristics for the 6A Digital SlimLynxTM at 1.8Vo and 25oC. 7 95 OUTPUT CURRENT, Io (A) EFFICIENCY, (%) 90 Vin=3.5V 85 80 Vin=14.4V Vin=12V 75 5 NC 0.5m/s (100LFM) 4 1.0m/s (200LFM) 3 2 1.5m/s (300LFM) 1 70 0 1 2 3 4 5 65 6 OUTPUT CURRENT, IO (A) 75 90 95 100 105 OUTPUT VOLTAGE VO (V) (20mV/div) TIME, t (20s /div) INPUT VOLTAGE VIN (V) (5V/div) VO (V) (500mV/div) Figure 16. Transient Response to Dynamic Load Change from 50% to 100% at 12Vin, Cout = 2x47uF+1x330uF, CTune=2700pF & RTune=300 OUTPUT VOLTAGE VO (V) (500mV/div) VON/OFF (V) (5V/div) Figure 15. Typical output ripple and noise (CO=1x47F ceramic, VIN = 12V, Io = Io,max, ). OUTPUT VOLTAGE ON/OFF VOLTAGE 85 Figure 14. Derating Output Current versus Ambient Temperature and Airflow. TIME, t (200ns/div) TIME, t (2ms/div) TIME, t (2ms/div) Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max). June 15, 2016 80 AMBIENT TEMPERATURE, TA OC OUTPUT CURRENT, VO (V) (10mV/div) 70 IO (A) (2Adiv) Figure 13. Converter Efficiency versus Output Current. OUTPUT VOLTAGE 2.0m/s (400LFM) 6 Figure 18. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). (c)2016 General Electric Corporation. All rights reserved. Page 9 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Characteristic Curves The following figures provide typical characteristics for the 6A Digital SlimLynxTM at 2.5Vo and 25oC. 95 7 90 6 2m/s (400LFM) OUTPUT CURRENT, Io (A) EFFICIENCY, (%) Vin=4.5V 85 Vin=14.4V 80 Vin=12V 75 0.5m/s (100LFM) 4 1.5m/s (300LFM) 3 1m/s (200LFM) 2 1 70 0 1 2 3 4 5 65 6 OUTPUT CURRENT, IO (A) 75 100 105 VO (V) (50mV/div) OUTPUT VOLTAGE INPUT VOLTAGE VIN (V) (5V/div) VO (V) (1V/div) VON/OFF (V) (5V/div) 95 Figure 22. Transient Response to Dynamic Load Change from 50% to 100% at 12Vin, Cout = 4x47uF, CTune=2700pF & RTune=300 OUTPUT VOLTAGE ON/OFF VOLTAGE VO (V) (1V/div) 90 TIME, t (20s /div) Figure 21. Typical output ripple and noise (CO=1x47F ceramic, VIN = 12V, Io = Io,max, ). OUTPUT VOLTAGE 85 Figure 20. Derating Output Current versus Ambient Temperature and Airflow. TIME, t (200ns/div) TIME, t (2ms/div) TIME, t (2ms/div) Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max). June 15, 2016 80 AMBIENT TEMPERATURE, TA OC OUTPUT CURRENT, VO (V) (10mV/div) 70 IO (A) (2Adiv) Figure 19. Converter Efficiency versus Output Current. OUTPUT VOLTAGE NC 5 Figure 24. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). (c)2016 General Electric Corporation. All rights reserved. Page 10 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Characteristic Curves The following figures provide typical characteristics for the 6A Digital SlimLynxTM at 3.3Vo and 25oC. 100 7 95 6 EFFICIENCY, (%) 90 OUTPUT CURRENT, Io (A) 2m/s (400LFM) Vin=4.5V 85 80 Vin=12V Vin=14.4V 75 NC 0.5m/s (100LFM) 4 3 1m/s (200LFM) 2 0 1 2 3 4 5 65 6 OUTPUT CURRENT, IO (A) 75 85 90 95 100 105 OUTPUT VOLTAGE VO (V) (50mV/div) Figure 26. Derating Output Current versus Ambient Temperature and Airflow. TIME, t (200ns/div) TIME, t (20s /div) INPUT VOLTAGE VIN (V) (5V/div) VO (V) (1V/div) Figure 28 Transient Response to Dynamic Load Change from 50% to 100% at 12Vin, Cout = 4x47uF, CTune=2700pF & RTune=300 OUTPUT VOLTAGE VO (V) (1V/div) VON/OFF (V) (5V/div) Figure 27. Typical output ripple and noise (CO=1x47F ceramic, VIN = 12V, Io = Io,max, ). TIME, t (2ms/div) TIME, t (2ms/div) Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max). June 15, 2016 80 AMBIENT TEMPERATURE, TA OC OUTPUT CURRENT, VO (V) (10mV/div) 70 IO (A) (2Adiv) Figure 25. Converter Efficiency versus Output Current. OUTPUT VOLTAGE ON/OFF VOLTAGE 1.5m/s (300LFM) 1 70 OUTPUT VOLTAGE 5 Figure 30. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). (c)2016 General Electric Corporation. All rights reserved. Page 11 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Characteristic Curves The following figures provide typical characteristics for the 6A Digital SlimLynxTM at 5Vo and 25oC. 7 95 6 OUTPUT CURRENT, Io (A) 100 EFFICIENCY, (%) 90 Vin=7V 85 Vin=14.4V Vin=12V 80 75 NC 4 0.5m/s (100LFM) 1m/s (200LFM) 3 2 0 1 2 3 4 5 1.5m/s (300LFM) 65 6 OUTPUT CURRENT, IO (A) 70 75 OUTPUT VOLTAGE VO (V) (50mV/div) IO (A) (2Adiv) INPUT VOLTAGE VIN (V) (5V/div) VO (V) (2V/div) VON/OFF (V) (5V/div) 95 100 105 Figure 34. Transient Response to Dynamic Load Change from 50% to 100% at 12Vin, Cout = 3x47uF, CTune=1500pF & RTune=300 OUTPUT VOLTAGE ON/OFF VOLTAGE 90 TIME, t (20s /div) Figure 33. Typical output ripple and noise (CO=1x47F ceramic, VIN = 12V, Io = Io,max, ). VO (V) (2V/div) 85 Figure 32. Derating Output Current versus Ambient Temperature and Airflow. TIME, t (200ns/div) TIME, t (2ms/div) TIME, t (2ms/div) Figure 35. Typical Start-up Using On/Off Voltage (Io = Io,max). June 15, 2016 80 AMBIENT TEMPERATURE, TA OC OUTPUT CURRENT, VO (V) (10mV/div) Figure 31. Converter Efficiency versus Output Current. OUTPUT VOLTAGE 2m/s (400LFM) 1 70 OUTPUT VOLTAGE 5 Figure 36. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). (c)2016 General Electric Corporation. All rights reserved. Page 12 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Design Considerations 60 1x47uF Ext Cap Input Filtering 2x47uF Ext Cap The 6A Digital Open Frame module should be connected to a low ac-impedance source. A highly inductive source can affect the stability of the module. An input capacitance must be placed directly adjacent to the input pin of the module, to minimize input ripple voltage and ensure module stability. To minimize input voltage ripple, ceramic capacitors are recommended at the input of the module. Figure 37 shows the input ripple voltage for various output voltages at 6A of load current with 1x22 F or 2x22 F ceramic capacitors and an input of 12V. Ripple (mVp-p) 50 SlimLynxTM 4x47uF Ext Cap 40 30 20 10 0 0.5 600 1x22uF 500 1 1.5 2 2.5 3 3.5 4 4.5 5 Output Voltage(Volts) 2x22 uF Figure 38. Output ripple voltage for various output voltages with external 2x47 F, 4x47 F, 6x47 F or 8x47 F ceramic capacitors at the output (6A load). Input voltage is 12V. 400 300 200 Safety Considerations 100 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Figure 37. Input ripple voltage for various output voltages with 1x22 F or 2x22 F ceramic capacitors at the input (6A load). Input voltage is 12V. Output Filtering These modules are designed for low output ripple voltage and will meet the maximum output ripple specification with suggested 2x0.047F+1x1uF ceramic decoupling capacitors and 1x47 F ceramic capacitors at the output of the module. However, additional output filtering may be required by the system designer for a number of reasons. First, there may be a need to further reduce the output ripple and noise of the module. Second, the dynamic response characteristics may need to be customized to a particular load step change. For safety agency approval the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standards, i.e., UL 60950-1 2nd, CSA C22.2 No. 60950-1-07, DIN EN 609501:2006 + A11 (VDE0805 Teil 1 + A11):2009-11; EN 609501:2006 + A11:2009-03. For the converter output to be considered meeting the requirements of safety extra-low voltage (SELV), the input must meet SELV requirements. The power module has extra-low voltage (ELV) outputs when all inputs are ELV. The input to these units is to be provided with with a fast acting fuse (e.g. ABC Bussmann) with a maximum rating of 20 A in the positive input lead. To reduce the output ripple and improve the dynamic response to a step load change, additional capacitance at the output can be used. Low ESR polymer and ceramic capacitors are recommended to improve the dynamic response of the module. Figure 38 provides output ripple information, measured with a scope with its Bandwidth limited to 20MHz for different external capacitance values at various Vo and a full load current of 6A. For stable operation of the module, limit the capacitance to less than the maximum output capacitance as specified in the electrical specification table. Optimal performance of the module can be achieved by using the Tunable LoopTM feature described later in this data sheet. June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 13 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Analog Feature Descriptions 3.3V SlimLynx Module +VIN Remote On/Off ENABLE VIN Rpullup The module can be turned ON and OFF either by using the ON/OFF pin (Analog interface) or through the PMBus interface (Digital). The module can be configured in a number of ways through the PMBus interface to react to the two ON/OFF inputs: * Module ON/OFF can be controlled only through the analog interface (digital interface ON/OFF commands are ignored) * Module ON/OFF can be controlled only through the PMBus interface (analog interface is ignored) * Module ON/OFF can be controlled by either the analog or digital interface The default state of the module (as shipped from the factory) is to be controlled by the analog interface only. If the digital interface is to be enabled, or the module is to be controlled only through the digital interface, this change must be made through the PMBus. These changes can be made and written to non-volatile memory on the module so that it is remembered for subsequent use. Analog On/Off The 6A Digital SlimLynxTM Open Frame power modules feature an On/Off pin for remote On/Off operation. Two On/Off logic options are available. In the Positive Logic On/Off option, (device code suffix "4" - see Ordering Information), the module turns ON during a logic High on the On/Off pin and turns OFF during a logic Low. With the Negative Logic On/Off option, (no device code suffix, see Ordering Information), the module turns OFF during logic High and ON during logic Low. The On/Off signal should be always referenced to ground. For either On/Off logic option, leaving the On/Off pin disconnected will turn the module ON when input voltage is present. For positive logic modules, the circuit configuration for using the On/Off pin is shown in Figure 39. When the external transistor Q2 is in the OFF state, the internal transistor Q7 is turned ON, which turn Q3 OFF which keeps Q6 OFF and Q5 OFF. This allows the internal PWM #Enable signal to be pulled up by the internal 3.3V, thus turning the module ON. When transistor Q2 is turned ON, the On/Off pin is pulled low, which turns Q7 OFF which turns Q3, Q6 and Q5 ON and the internal PWM #Enable signal is pulled low and the module is OFF. A suggested value for Rpullup is 20k. For negative logic On/Off modules, the circuit configuration is shown in Fig. 40. The On/Off pin should be pulled high with an external pull-up resistor (suggested value for the 3V to 14V input range is 20Kohms). When transistor Q2 is in the OFF state, the On/Off pin is pulled high, transistor Q3 is turned ON. This turns Q6 ON, followed by Q5 turning ON which pulls the internal ENABLE low and the module is OFF. To turn the module ON, Q2 is turned ON pulling the On/Off pin low, turning transistor Q3 OFF, which keeps Q6 and Q5 OFF resulting in the PWM Enable pin going high. 47K 470 20K 100pF 20K Q6 4.7K I ON/OFF Q3 20K 20K 100K 20K Q7 + 2K 20K Q2 Q5 20K 20K V ON/OFF _ GND Figure 39. Circuit configuration for using positive On/Off logic. SlimLynx Module 3.3V +VIN ENABLE Rpullup 470 100pF I ON/OFF 47K 20K Q3 + Q6 4.7K 100K Q2 Q5 20K 2K V ON/OFF _ 20K 20K GND Figure 40. Circuit configuration for using negative On/Off logic. Monotonic Start-up and Shutdown The module has monotonic start-up and shutdown behavior for any combination of rated input voltage, output current and operating temperature range. Startup into Pre-biased Output The module can start into a prebiased output as long as the prebias voltage is 0.5V less than the set output voltage. Analog Output Voltage Programming The output voltage of the module is programmable to any voltage from 0.6dc to 5.5Vdc by connecting a resistor between the Trim and SIG_GND pins of the module. Certain restrictions apply on the output voltage set point depending on the input voltage. These are shown in the Output Voltage vs. Input Voltage Set Point Area plot in Fig. 41. The Upper Limit curve shows that for output voltages lower than 1V, the input voltage must be lower than the maximum of 14.4V. The Lower Limit curve shows that for output voltages higher than 0.6V, the input voltage needs to be larger than the minimum of 3V. Digital On/Off Please see the Digital Feature Descriptions section. June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 14 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Table 1 Input Voltage (v) 16 14 VO, set (V) Rtrim (K) 12 0.6 0.9 1.0 1.2 1.5 1.8 2.5 3.3 5.0 Open 40 30 20 13.33 10 6.316 4.444 2.727 Upper 10 8 6 4 Lower 2 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 Output Voltage (V) Figure 41. Output Voltage vs. Input Voltage Set Point Area plot showing limits where the output voltage can be set for different input voltages. Digital Output Voltage Adjustment Please see the Digital Feature Descriptions section. Remote Sense VIN(+) VO(+) VS+ ON/OFF LOAD TRIM Rtrim SIG_GND VS Caution - Do not connect SIG_GND to GND elsewhere in the layout Figure 42. Circuit configuration for programming output voltage using an external resistor. Without an external resistor between Trim and SIG_GND pins, the output of the module will be 0.6Vdc.To calculate the value of the trim resistor, Rtrim for a desired output voltage, should be as per the following equation: 12 Rtrim = k (Vo - 0.6 ) The power module has a Remote Sense feature to minimize the effects of distribution losses by regulating the voltage between the sense pins (VS+ and VS-). The voltage drop between the sense pins and the VOUT and GND pins of the module should not exceed 0.5V. Analog Voltage Margining Output voltage margining can be implemented in the module by connecting a resistor, Rmargin-up, from the Trim pin to the ground pin for margining-up the output voltage and by connecting a resistor, Rmargin-down, from the Trim pin to output pin for margining-down. Figure 43 shows the circuit configuration for output voltage margining. The POL Programming Tool, available at www.gecriticalpower.com under the Downloads section, also calculates the values of Rmargin-up and Rmargin-down for a specific output voltage and % margin. Please consult your local GE Critical Power technical representative for additional details. Vo Rmargin-down MODULE Q2 Trim Rmargin-up Rtrim is the external resistor in k Rtrim Vo is the desired output voltage. Table 1 provides Rtrim values required for some common output voltages. Q1 SIG_GND Figure 43. Circuit Configuration for margining Output voltage. Digital Output Voltage Margining Please see the Digital Feature Descriptions section. June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 15 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Output Voltage Sequencing The power module includes a sequencing feature, EZSEQUENCE that enables users to implement various types of output voltage sequencing in their applications. This is accomplished via an additional sequencing pin. When not using the sequencing feature, leave it unconnected. and warnings. To avoid the module shutting down due to the Output Undervoltage Fault, the module must be set to continue operation without interruption as the response to this fault (see the description of the PMBus command VOUT_UV_FAULT_RESPONSE for additional information). Overcurrent Protection The voltage applied to the SEQ pin should be scaled down by the same ratio as used to scale the output voltage down to the reference voltage of the module. This is accomplished by an external resistive divider connected across the sequencing voltage before it is fed to the SEQ pin as shown in Fig. 44. In addition, a small capacitor (suggested value 100pF) should be connected across the lower resistor R1. To provide protection in a fault (output overload) condition, the unit is equipped with internal current-limiting circuitry and can endure current limiting continuously. At the point of current-limit inception, the unit enters hiccup mode. The unit operates normally once the output current is brought back into its specified range. For all SlimLynx modules, the minimum recommended delay between the ON/OFF signal and the sequencing signal is 10ms to ensure that the module output is ramped up according to the sequencing signal. This ensures that the module soft-start routine is completed before the sequencing signal is allowed to ramp up. Please see the Digital Feature Descriptions section. SlimLynx Module V SEQ Overtemperature Protection To provide protection in a fault condition, the unit is equipped with a thermal shutdown circuit. The unit will shut down if the overtemperature threshold of 150oC(typ) is exceeded at the thermal reference point Tref .Once the unit goes into thermal shutdown it will then wait to cool before attempting to restart. Digital Temperature Status via PMBus Please see the Digital Feature Descriptions section. 20K Digitally Adjustable Output Over and Under Voltage Protection SEQ Please see the Digital Feature Descriptions section. R1=Rtrim 100 pF Digital Adjustable Overcurrent Warning Input Undervoltage Lockout SIG_GND Figure 44. Circuit showing connection of the sequencing signal to the SEQ pin. When the scaled down sequencing voltage is applied to the SEQ pin, the output voltage tracks this voltage until the output reaches the set-point voltage. The final value of the sequencing voltage must be set higher than the set-point voltage of the module. The output voltage follows the sequencing voltage on a one-to-one basis. By connecting multiple modules together, multiple modules can track their output voltages to the voltage applied on the SEQ pin. At input voltages below the input undervoltage lockout limit, the module operation is disabled. The module will begin to operate at an input voltage above the undervoltage lockout turn-on threshold. Digitally Adjustable Input Undervoltage Lockout Please see the Digital Feature Descriptions section. Digitally Adjustable Power Good Thresholds Please see the Digital Feature Descriptions section. The module's output can track the SEQ pin signal with slopes of up to 0.5V/msec during power-up or power-down. To initiate simultaneous shutdown of the modules, the SEQ pin voltage is lowered in a controlled manner. The output voltage of the modules tracks the voltages below their setpoint voltages on a one-to-one basis. A valid input voltage must be maintained until the tracking and output voltages reach ground potential. Note that in all digital SlimLynx series of modules, the PMBus Output Undervoltage Fault will be tripped when sequencing is employed. This will be detected using the STATUS_WORD and STATUS_VOUT PMBus commands. In addition, the SMBALERT# signal will be asserted low as occurs for all faults June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 16 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Synchronization Tunable LoopTM The module switching frequency can be synchronized to a signal with an external frequency within a specified range. Synchronization can be done by using the external signal applied to the SYNC pin of the module as shown in Fig. 45, with the converter being synchronized by the rising edge of the external signal. The Electrical Specifications table specifies the requirements of the external SYNC signal. If the SYNC pin is not used, the module should free run at the default switching frequency. If synchronization is not being used, connect the SYNC pin to GND. MODULE The module has a feature that optimizes transient response of the module called Tunable LoopTM. External capacitors are usually added to the output of the module for two reasons: to reduce output ripple and noise (see Figure 38) and to reduce output voltage deviations from the steady-state value in the presence of dynamic load current changes. Adding external capacitance however affects the voltage control loop of the module, typically causing the loop to slow down with sluggish response. Larger values of external capacitance could also cause the module to become unstable. The Tunable LoopTM allows the user to externally adjust the voltage control loop to match the filter network connected to the output of the module. The Tunable LoopTM is implemented by connecting a series R-C between the VS+ and TRIM pins of the module, as shown in Fig. 47. This R-C allows the user to externally adjust the voltage loop feedback compensation of the module. SYNC + GND Figure 45. External source connections to synchronize switching frequency of the module. VOUT VS+ Measuring Output Current, Output Voltage and Input Voltage Please see the Digital Feature Descriptions section. RTune MODULE CO CTune TRIM RTrim SIG_GND GND Figure. 47. Circuit diagram showing connection of RTUME and CTUNE to tune the control loop of the module. Recommended values of RTUNE and CTUNE for different output capacitor combinations are given in Table 2. Table 2 shows the recommended values of RTUNE and CTUNE for different values of ceramic output capacitors up to 1000uF that might be needed for an application to meet output ripple and noise requirements. Selecting RTUNE and CTUNE according to Table 2 will ensure stable operation of the module. In applications with tight output voltage limits in the presence of dynamic current loading, additional output capacitance will be required. Table 3 lists recommended values of RTUNE and CTUNE in order to meet 2% output voltage deviation limits for some common output voltages in the presence of a 3A to 6A step change (50% of full load), with an input voltage of 12V. Please contact your GE Critical Power technical representative to obtain more details of this feature as well as for guidelines on how to select the right value of external R-C to tune the module for best transient performance and stable operation for other output capacitance values. June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 17 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Table 2. General recommended values of of RTUNE and CTUNE for Vin=12V and various external ceramic capacitor combinations. Co 3x47F 4x47F 6x47F 10x47F 20x47F RTUNE 300 300 300 240 180 CTUNE 1000pF 1200pF 2200pF 3300pF 8200pF Table 3. Recommended values of RTUNE and CTUNE to obtain transient deviation of 2% of Vout for a 3A step load with Vin=12V. Vo Co RTUNE CTUNE V 5V 3.3V 2.5V 1.8V 1.2V 0.6V 3x47F 3x47F 4x47F 1x47F + 3x47F + 2x47F + Ceramic Ceramic Ceramic 1x330F 1x330F 3x330F Polymer Polymer Polymer 300 300 300 300 300 200 1000pF 1200pF 1800pF 2700pF 60mV 54mV 42mV 26mV 3900pF 15nF 22mV 11mV Note: The capacitors used in the Tunable Loop tables are 47 F/3 m ESR ceramic and 330 F/12 m ESR polymer capacitors. June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 18 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Digital Feature Descriptions address resistor value is outside the range specified in Table 4, the module will respond to address 127. PMBus Interface Capability Table 4 The 6A Digital SlimLynxTM Open Frame power modules have a PMBus interface that supports both communication and control. The PMBus Power Management Protocol Specification can be obtained from www.pmbus.org. The modules support a subset of version 1.1 of the specification (see Table 6 for a list of the specific commands supported). Most module parameters can be programmed using PMBus and stored as defaults for later use. All communication over the module PMBus interface must support the Packet Error Checking (PEC) scheme. The PMBus master must generate the correct PEC byte for all transactions, and check the PEC byte returned by the module. The module also supports the SMBALERT# response protocol whereby the module can alert the bus master if it wants to talk. For more information on the SMBus alert response protocol, see the System Management Bus (SMBus) specification. The module has non-volatile memory that is used to store configuration settings. Not all settings programmed into the device are automatically saved into this non-volatile memory, only those specifically identified as capable of being stored can be saved (see Table 6 for which command parameters can be saved to non-volatile storage). Digit Resistor Value (K) 0 10 1 15.4 2 23.7 3 36.5 4 54.9 5 84.5 6 130 7 200 The user must know which I2C addresses are reserved in a system for special functions and set the address of the module to avoid interfering with other system operations. Both 100kHz and 400kHz bus speeds are supported by the module. Connection for the PMBus interface should follow the High Power DC specifications given in section 3.1.3 in the SMBus specification V2.0 for the 400kHz bus speed or the Low Power DC specifications in section 3.1.2. The complete SMBus specification is available from the SMBus web site, smbus.org. PMBus Data Format ADDR1 For commands that set thresholds, voltages or report such quantities, the module supports the "Linear" data format among the three data formats supported by PMBus. The Linear Data Format is a two byte value with an 11-bit, two's complement mantissa and a 5-bit, two's complement exponent. The format of the two data bytes is shown below: Data Byte High Data Byte Low 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 Exponent Mantissa MSB MSB The value is of the number is then given by Value = Mantissa x 2 Exponent PMBus Addressing The power module can be addressed through the PMBus using a device address. The module has 64 possible addresses (0 to 63 in decimal) which can be set using resistors connected from the ADDR0 and ADDR1 pins to SIG_GND. Note that some of these addresses (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 12, 40, 44, 45, 55 in decimal) are reserved according to the SMBus specifications and may not be useable. The address is set in the form of two octal (0 to 7) digits, with each pin setting one digit. The ADDR1 pin sets the high order digit and ADDR0 sets the low order digit. The resistor values suggested for each digit are shown in Table 4 (1% tolerance resistors are recommended). Note that if either June 15, 2016 ADDR0 RADDR0 RADDR1 SIG_GND Figure 48. Circuit showing connection of resistors used to set the PMBus address of the module. PMBus Enabled On/Off The module can also be turned on and off via the PMBus interface. The OPERATION command is used to actually turn the module on and off via the PMBus, while the ON_OFF_CONFIG command configures the combination of analog ON/OFF pin input and PMBus commands needed to turn the module on and off. Bit [7] in the OPERATION command data byte enables the module, with the following functions: 0 1 : : Output is disabled Output is enabled This module uses the lower five bits of the ON_OFF_CONFIG data byte to set various ON/OFF options as follows: Bit Position Access Function Default Value 4 r/w PU 1 (c)2016 General Electric Corporation. All rights reserved. 3 r/w CMD 0 2 r/w CPR 1 1 r/w POL 1 0 r CPA 1 Page 19 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current PU: Sets the default to either operate any time input power is present or for the ON/OFF to be controlled by the analog ON/OFF input and the PMBus OPERATION command. This bit is used together with the CP, CMD and ON bits to determine startup. Bit Value 0 1 Action Module powers up any time power is present regardless of state of the analog ON/OFF pin Module does not power up until commanded by the analog ON/OFF pin and the OPERATION command as programmed in bits [2:0] of the ON_OFF_CONFIG register. CMD: The CMD bit controls how the device responds to the OPERATION command. Bit Value 0 1 Action Module ignores the ON bit in the OPERATION command Module responds to the ON bit in the OPERATION command CPR: Sets the response of the analog ON/OFF pin. This bit is used together with the CMD, PU and ON bits to determine startup. Bit Value 0 1 Action Module ignores the analog ON/OFF pin, i.e. ON/OFF is only controlled through the PMBUS via the OPERATION command Module requires the analog ON/OFF pin to be asserted to start the unit PMBus Adjustable Soft Start Rise Time The soft start rise time can be adjusted in the module via PMBus. When setting this parameter, make sure that the charging current for output capacitors can be delivered by the module in addition to any load current to avoid nuisance tripping of the overcurrent protection circuitry during startup. The TON_RISE command sets the rise time in ms, and allows choosing soft start times between 600s and 9ms, with possible values listed in Table 5. Note that the exponent is fixed at -4 (decimal) and the upper two bits of the mantissa are also fixed at 0. Table 5 Rise Time Exponent Mantissa 600s 11100 00000001010 900s 11100 00000001110 1.2ms 11100 00000010011 1.8ms 11100 00000011101 2.7ms 11100 00000101011 4.2ms 11100 00001000011 6.0ms 11100 00001100000 9.0ms 11100 00010010000 Output Voltage Adjustment Using the PMBus The VOUT_SCALE_LOOP parameter is important for a number of PMBus commands related to output voltage trimming, margining, over/under voltage protection and the PGOOD thresholds. The output voltage of the module is set as the combination of the voltage divider formed by RTrim and a 20k upper divider resistor inside the module, and the internal reference voltage of the module. The reference voltage VREF is nominally set at 600mV, and the output regulation voltage is then given by 20000 + RTrim VOUT = x VREF RTrim Hence the module output voltage is dependent on the value of RTrim which is connected external to the module. The information on the output voltage divider ratio is conveyed to the module through the VOUT_SCALE_LOOP parameter which is calculated as follows: VOUT _ SCALE _ LOOP = RTrim 20000 + RTrim The VOUT_SCALE_LOOP parameter is specified using the "Linear" format and two bytes. The upper five bits [7:3] of the high byte are used to set the exponent which is fixed at -9 (decimal). The remaining three bits of the high byte [2:0] and the eight bits of the lower byte are used for the mantissa. The default value of the mantissa is 00100000000 corresponding to 256 (decimal), corresponding to a divider ratio of 0.5. The maximum value of the mantissa is 512 corresponding to a divider ratio of 1. Note that the resolution of the VOUT_SCALE_LOOP command is 0.2%. When PMBus commands are used to trim or margin the output voltage, the value of VREF is what is changed inside the module, which in turn changes the regulated output voltage of the module. The nominal output voltage of the module can be adjusted with a minimum step size of 0.4% over a 25% range from nominal using the VOUT_TRIM command over the PMBus. The VOUT_TRIM command is used to apply a fixed offset voltage to the output voltage command value using the June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 20 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current "Linear" mode with the exponent fixed at -10 (decimal). The value of the offset voltage is given by VOUT ( offset ) = VOUT _ TRIM x 2 -10 This offset voltage is added to the voltage set through the divider ratio and nominal VREF to produce the trimmed output voltage. The valid range in two's complement for this command is -4000h to 3FFFh. The high order two bits of the high byte must both be either 0 or 1. If a value outside of the +/-25% adjustment range is given with this command, the module will set it's output voltage to the nominal value (as if VOUT_TRIM had been set to 0), assert SMBALRT#, set the CML bit in STATUS_BYTE and the invalid data bit in STATUS_CML. Output Voltage Margining Using the PMBus The module can also have its output voltage margined via PMBus commands. The command VOUT_MARGIN_HIGH sets the margin high voltage, while the command VOUT_MARGIN_LOW sets the margin low voltage. Both the VOUT_MARGIN_HIGH and VOUT_MARGIN_LOW commands use the "Linear" mode with the exponent fixed at -10 (decimal). Two bytes are used for the mantissa with the upper bit [7] of the high byte fixed at 0. The actual margined output voltage is a combination of the VOUT_MARGIN_HIGH or VOUT_MARGIN_LOW and the VOUT_TRIM values as shown below. VOUT ( MH ) = (VOUT _ MARGIN _ HIGH + VOUT _ TRIM ) x 2 -10 VOUT ( ML ) = (VOUT _ MARGIN _ LOW + VOUT _ TRIM ) x 2 -10 Note that the sum of the margin and trim voltages cannot be outside the 25% window around the nominal output voltage. The data associated with VOUT_MARGIN_HIGH and VOUT_MARGIN_LOW can be stored to non-volatile memory using the STORE_DEFAULT_ALL command. The module is commanded to go to the margined high or low voltages using the OPERATION command. Bits [5:2] are used to enable margining as follows: 00XX 0101 0110 1001 1010 : : : : : Margin Off Margin Low (Ignore Fault) Margin Low (Act on Fault) Margin High (Ignore Fault) Margin High (Act on Fault) Temperature Status via PMBus The module can provide information related to temperature of the module through the STATUS_TEMPERATURE command. The command returns information about whether the pre-set over temperature fault threshold and/or the warning threshold have been exceeded. PMBus Adjustable Output Over and Under Voltage Protection The module has output over and under voltage protection capability. The PMBus command VOUT_OV_FAULT_LIMIT is used to set the output over voltage threshold from four possible values: 108%, 110%, 112% or 115% of the commanded output voltage. The command VOUT_UV_FAULT_LIMIT sets the threshold that causes an output under voltage fault and can also be selected from four possible values: 92%, 90%, 88% or 85%. The default values are 112% and 88% of commanded output voltage. Both commands use two data bytes formatted as two's complement binary integers. The "Linear" mode is used with the exponent fixed to -10 (decimal) and the effective over or under voltage trip points given by: VOUT (OV _ REQ ) = (VOUT _ OV _ FAULT _ LIMIT ) x 2 -10 VOUT (UV _ REQ ) = (VOUT _ UV _ FAULT _ LIMIT ) x 2 -10 Values within the supported range for over and undervoltage detection thresholds will be set to the nearest fixed percentage. Note that the correct value for VOUT_SCALE_LOOP must be set in the module for the correct over or under voltage trip points to be calculated. In addition to adjustable output voltage protection, the 6A Digital SlimLynxTM Open Frame module can also be programmed for the response to the fault. The VOUT_OV_FAULT RESPONSE and VOUT_UV_FAULT_RESPONSE commands specify the response to the fault. Both these commands use a single data byte with the possible options as shown below. 1. PMBus Adjustable Overcurrent Warning The module can provide an overcurrent warning via the PMBus. The threshold for the overcurrent warning can be set using the parameter IOUT_OC_WARN_LIMIT. This command uses the "Linear" data format with a two byte data word where the upper five bits [7:3] of the high byte represent the exponent and the remaining three bits of the high byte [2:0] and the eight bits in the low byte represent the mantissa. The exponent is fixed at -1 (decimal). The upper five bits of the mantissa are fixed at 0 while the lower six bits are programmable. Note that the actual value for IOUT_OC_WARN_LIMIT will vary from module to module due June 15, 2016 to calibration during production test, The resolution of this warning limit is 500mA. The value of the IOUT_OC_WARN_LIMIT can be stored to non-volatile memory using the STORE_DEFAULT_ALL command. Continue operation without interruption (Bits [7:6] = 00, Bits [5:3] = xxx) 2. Continue for four switching cycles and then shut down if the fault is still present, followed by no restart or continuous restart (Bits [7:6] = 01, Bits [5:3] = 000 means no restart, Bits [5:3] = 111 means continuous restart) 3. Immediate shut down followed by no restart or continuous restart (Bits [7:6] = 10, Bits [5:3] = 000 means no restart, Bits [5:3] = 111 means continuous restart). 4. Module output is disabled when the fault is present and the output is enabled when the fault no longer exists (Bits [7:6] = 11, Bits [5:3] = xxx). Note that separate response choices are possible for output over voltage or under voltage faults. (c)2016 General Electric Corporation. All rights reserved. Page 21 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current PMBus Adjustable Input Undervoltage Lockout The module allows adjustment of the input under voltage lockout and hysteresis. The command VIN_ON allows setting the input voltage turn on threshold, while the VIN_OFF command sets the input voltage turn off threshold. For the VIN_ON command, possible values are 2.75V, and 3V to 14V in 0.5V steps. For the VIN_OFF command, possible values are 2.5V to 14V in 0.5V steps. If other values are entered for either command, they will be mapped to the closest of the allowed values. VIN_ON must be set higher than VIN_OFF. Attempting to write either VIN_ON lower than VIN_OFF or VIN_OFF higher than VIN_ON results in the new value being rejected, SMBALERT being asserted along with the CML bit in STATUS_BYTE and the invalid data bit in STATUS_CML. Both the VIN_ON and VIN_OFF commands use the "Linear" format with two data bytes. The upper five bits represent the exponent (fixed at -2) and the remaining 11 bits represent the mantissa. For the mantissa, the four most significant bits are fixed at 0. Power Good The module provides a Power Good (PGOOD) signal that is implemented with an open-drain output to indicate that the output voltage is within the regulation limits of the power module. The PGOOD signal will be de-asserted to a low state if any condition such as overtemperature, overcurrent or loss of regulation occurs that would result in the output voltage going outside the specified thresholds. The PGOOD thresholds are user selectable via the PMBus (the default values are as shown in the Feature Specifications Section). Each threshold is set up symmetrically above and below the nominal value. The POWER_GOOD_ON command sets the output voltage level above which PGOOD is asserted (lower threshold). For example, with a 1.2V nominal output voltage, the POWER_GOOD_ON threshold can set the lower threshold to 1.14 or 1.1V. Doing this will automatically set the upper thresholds to 1.26 or 1.3V. The POWER_GOOD_OFF command sets the level below which the PGOOD command is de-asserted. This command also sets two thresholds symmetrically placed around the nominal output voltage. Normally, the POWER_GOOD_ON threshold is set higher than the POWER_GOOD_OFF threshold. Both POWER_GOOD_ON and POWER_GOOD_OFF commands use the "Linear" format with the exponent fixed at -10 (decimal). The two thresholds are given by VOUT ( PGOOD _ ON ) = ( POWER _ GOOD _ ON ) x 2 -10 VOUT ( PGOOD _ OFF ) = ( POWER _ GOOD _ OFF ) x 2 -10 Both commands use two data bytes with bit [7] of the high byte fixed at 0, while the remaining bits are r/w and used to set the mantissa using two's complement representation. Both commands also use the VOUT_SCALE_LOOP parameter so it must be set correctly. The default value of POWER_GOOD_ON is set at 1.1035V and that of the POWER_GOOD_OFF is set at 1.08V. The values associated June 15, 2016 with these commands can be stored in non-volatile memory using the STORE_DEFAULT_ALL command. The PGOOD terminal can be connected through a pullup resistor (suggested value 100K) to a source of 5VDC or lower. Measurement of Output Current, Output Voltage and Input Voltage The module is capable of measuring key module parameters such as output current and voltage and input voltage and providing this information through the PMBus interface. Roughly every 200s, the module makes 16 measurements each of output current, voltage and input voltage. Average values of of these 16 measurements are then calculated and placed in the appropriate registers. The values in the registers can then be read using the PMBus interface. Measuring Output Current Using the PMBus The module measures current by using the inductor winding resistance as a current sense element. The inductor winding resistance is then the current gain factor used to scale the measured voltage into a current reading. This gain factor is the argument of the IOUT_CAL_GAIN command, and consists of two bytes in the linear data format. The exponent uses the upper five bits [7:3] of the high data byte in two-s complement format and is fixed at -15 (decimal). The remaining 11 bits in two's complement binary format represent the mantissa. The current measurement accuracy is also improved by each module being calibrated during manufacture with the offset in the current reading. The IOUT_CAL_OFFSET command is used to store and read the current offset. The argument for this command consists of two bytes composed of a 5-bit exponent (fixed at -4d) and a 11-bit mantissa. This command has a resolution of 62.5mA and a range of -4000mA to +3937.5mA. During manufacture, each module is calibrated by measuring and storing the current gain factor and offset into non-volatile storage. The READ_IOUT command provides module average output current information. This command only supports positive or current sourced from the module. If the converter is sinking current a reading of 0 is provided. The READ_IOUT command returns two bytes of data in the linear data format. The exponent uses the upper five bits [7:3] of the high data byte in two-s complement format and is fixed at - 4 (decimal). The remaining 11 bits in two's complement binary format represent the mantissa with the 11th bit fixed at 0 since only positive numbers are considered valid. Note that the current reading provided by the module is not corrected for temperature. The temperature corrected current reading for module temperature TModule can be estimated using the following equation , = _ + [( - ) x . ] (c)2016 General Electric Corporation. All rights reserved. Page 22 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current where IOUT_CORR is the temperature corrected value of the current measurement, IREAD_OUT is the module current measurement value, TIND is the temperature of the inductor winding on the module. Since it may be difficult to measure TIND, it may be approximated by an estimate of the module temperature. Measuring Output Voltage Using the PMBus The module can provide output voltage information using the READ_VOUT command. The command returns two bytes of data all representing the mantissa while the exponent is fixed at -10 (decimal). During manufacture of the module, offset and gain correction values are written into the non-volatile memory of the module. The command VOUT_CAL_OFFSET can be used to read and/or write the offset (two bytes consisting of a 16bit mantissa in two's complement format) while the exponent is always fixed at -10 (decimal). The allowed range for this offset correction is -125 to 124mV. The command VOUT_CAL_GAIN can be used to read and/or write the gain correction - two bytes consisting of a five-bit exponent (fixed at -8) and a 11-bit mantissa. The range of this correction factor is -0.125V to +0.121V, with a resolution of 0.004V. The corrected output voltage reading is then given by: VOUT ( Final ) = [VOUT ( Initial ) x (1 + VOUT _ CAL _ GAIN )] + VOUT _ CAL _ OFFSET Measuring Input Voltage Using the PMBus The module can provide output voltage information using the READ_VIN command. The command returns two bytes of data in the linear format. The upper five bits [7:3] of the high data form the two's complement representation of the exponent which is fixed at -5 (decimal). The remaining 11 bits are used for two's complement representation of the mantissa, with the 11th bit fixed at zero since only positive numbers are valid. During module manufacture, offset and gain correction values are written into the non-volatile memory of the module. The command VIN_CAL_OFFSET can be used to read and/or write the offset - two bytes consisting of a fivebit exponent (fixed at -5) and a11-bit mantissa in two's complement format. The allowed range for this offset correction is -2 to 1.968V, and the resolution is 32mV. The command VIN_CAL_GAIN can be used to read and/or write the gain correction - two bytes consisting of a five-bit exponent (fixed at -8) and a 11-bit mantissa. The range of this correction factor is -0.125V to +0.121V, with a resolution of 0.004V. The corrected output voltage reading is then given by: The module supports a number of status information commands implemented in PMBus. However, not all features are supported in these commands. A 1 in the bit position indicates the fault that is flagged. STATUS_BYTE : Returns one byte of information with a summary of the most critical device faults. Bit Default Flag Position Value 7 X 0 6 OFF 0 5 VOUT Overvoltage 0 4 IOUT Overcurrent 0 3 VIN Undervoltage 0 2 Temperature 0 1 CML (Comm. Memory Fault) 0 0 None of the above 0 STATUS_WORD : Returns two bytes of information with a summary of the module's fault/warning conditions. Low Byte Bit Default Flag Position Value 7 X 0 6 OFF 0 5 VOUT Overvoltage 0 4 IOUT Overcurrent 0 3 VIN Undervoltage 0 2 Temperature 0 1 CML (Comm. Memory Fault) 0 0 None of the above 0 Bit Position 7 6 5 4 3 2 1 0 High Byte Flag VOUT fault or warning IOUT fault or warning X X POWER_GOOD# (is negated) X X X Default Value 0 0 0 0 0 0 0 0 VIN ( Final ) = [VIN ( Initial ) x (1 + VIN _ CAL _ GAIN )] + VIN _ CAL _ OFFSET Reading the Status of the Module using the PMBus June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 23 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current STATUS_VOUT : Returns one byte of information relating to the status of the module's output voltage related faults. Bit Default Flag Position Value 7 VOUT OV Fault 0 6 X 0 5 X 0 4 VOUT UV Fault 0 3 X 0 2 X 0 1 X 0 0 X 0 STATUS_IOUT : Returns one byte of information relating to the status of the module's output voltage related faults. Bit Position 7 6 5 4 3 2 1 0 Default Value 0 0 0 0 0 0 0 0 Flag IOUT OC Fault X IOUT OC Warning X X X X X STATUS_TEMPERATURE : Returns one byte of information relating to the status of the module's temperature related faults. Bit Position 7 6 5 4 3 2 1 0 exponent - fixed at -2, and lower 11 bits are mantissa in two's complement format - fixed at 12) MFR_VOUT_MIN : Returns minimum output voltage as two data bytes of information in Linear format (upper five bits are exponent - fixed at -10, and lower 11 bits are mantissa in two's complement format - fixed at 614) MFR_SPECIFIC_00 : Returns information related to the type of module and revision number. Bits [7:2] in the Low Byte indicate the module type (000101 corresponds to the UxDT006 series of module), while bits [7:3] indicate the revision number of the module. Low Byte Bit Position Flag Default Value 7:2 Module Name 000101 1:0 Reserved 10 High Byte Bit Position Flag Default Value 7:3 Module Revision Number None 2:0 Reserved 000 Default Value 0 0 0 0 0 0 0 0 Flag OT Fault OT Warning X X X X X X STATUS_CML : Returns one byte of information relating to the status of the module's communication related faults. Bit Position 7 6 5 4 3 2 1 0 Flag Invalid/Unsupported Command Invalid/Unsupported Command Packet Error Check Failed X X X Other Communication Fault X Default Value 0 0 0 0 0 0 0 0 MFR_VIN_MIN : Returns minimum input voltage as two data bytes of information in Linear format (upper five bits are June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 24 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Summary of Supported PMBus Commands Please refer to the PMBus 1.1 specification for more details of these commands. Table 6 Hex Code Command Non-Volatile Memory Storage Brief Description Turn Module on or off. Also used to margin the output voltage 01 OPERATION Format Bit Position Access Function Default Value 7 r/w On 0 6 r X 0 5 r/w 0 Unsigned Binary 4 3 2 r/w r/w r/w Margin 0 0 0 1 r X X 0 r X X Configures the ON/OFF functionality as a combination of analog ON/OFF pin and PMBus commands Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r/w r/w r/w r/w r Function X X X pu cmd cpr pol cpa Default Value 0 0 0 1 0 1 1 1 02 ON_OFF_CONFIG 03 CLEAR_FAULTS Clear any fault bits that may have been set, also releases the SMBALERT# signal if the device has been asserting it. 10 WRITE_PROTECT Used to control writing to the module via PMBus. Copies the current register setting in the module whose command code matches the value in the data byte into non-volatile memory (EEPROM) on the module Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w x x x x x Function bit7 bit6 bit5 X X X X X Default Value 0 0 0 X X X X X Bit5: 0 - Enables all writes as permitted in bit6 or bit7 1 - Disables all writes except the WRITE_PROTECT, OPERATION and ON_OFF_CONFIG (bit 6 and bit7 must be 0) Bit 6: 0 - Enables all writes as permitted in bit5 or bit7 1 - Disables all writes except for the WRITE_PROTECT and OPERATION commands (bit5 and bit7 must be 0) Bit7: 0 - Enables all writes as permitted in bit5 or bit6 1 - Disables all writes except for the WRITE_PROTECT command (bit5 and bit6 must be 0) 11 STORE_DEFAULT_ALL 12 RESTORE_DEFAULT_ALL Restores all current register settings in the module from values in the module non-volatile memory (EEPROM) STORE_DEFAULT_CODE Copies the current register setting in the module whose command code matches the value in the data byte into non-volatile memory (EEPROM) on the module Bit Position 7 6 5 4 3 2 1 0 Access w w w w w w w w Function Command code RESTORE_DEFAULT_CODE Restores the current register setting in the module whose command code matches the value in the data byte from the value in the module non-volatile memory (EEPROM) Bit Position 7 6 5 4 3 2 1 0 Access w w w w w w w w Function Command code VOUT_MODE The module has MODE set to Linear and Exponent set to -10. These values cannot be changed Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mode Exponent Default Value 0 0 0 1 0 1 1 0 13 14 20 June 15, 2016 YES YES Copies all current register settings in the module into non-volatile memory (EEPROM) on the module. Takes about 50ms for the command to execute. (c)2016 General Electric Corporation. All rights reserved. Page 25 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Table 6 (continued) Hex Code Command 22 VOUT_TRIM 25 VOUT_MARGIN_HIGH 26 29 35 June 15, 2016 Non-Volatile Memory Storage Brief Description Apply a fixed offset voltage to the output voltage command value. Exponent is fixed at -10. Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function High Byte Default Value 0 0 0 0 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 0 0 0 0 0 0 0 0 Sets the target voltage for margining the output high. Exponent is fixed at -10. Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w Function High Byte Default Value 0 0 0 0 0 1 0 1 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 0 1 0 0 0 1 1 1 YES YES VOUT_MARGIN_LOW Sets the target voltage for margining the output low. Exponent is fixed at -10 Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w Function High Byte Default Value 0 0 0 0 0 1 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 0 1 0 1 0 0 0 1 YES VOUT_SCALE_LOOP Sets the scaling of the output voltage - equal to the feedback resistor divider ratio Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r/w r/w Function Exponent Mantissa Default Value 1 0 1 1 1 0 0 1 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 0 0 0 0 0 0 YES Sets the value of input voltage at which the module turns on Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 Access r r r r r r r Function Exponent Mantissa Default Value 1 1 1 1 0 0 0 Bit Position 7 6 5 4 3 2 1 Access r r/w r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 0 0 1 0 1 YES VIN_ON (c)2016 General Electric Corporation. All rights reserved. 0 r 0 0 r/w 1 Page 26 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Table 6 (continued) Hex Code Command 36 VIN_OFF Sets the value of input voltage at which the module turns off Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 Access r r r r r r r Function Exponent Mantissa Default Value 1 1 1 1 0 0 0 Bit Position 7 6 5 4 3 2 1 Access r r/w r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 0 0 1 0 1 0 r 0 0 r/w YES 0 IOUT_CAL_GAIN Returns the value of the gain correction term used to correct the measured output current Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r/w Function Exponent Mantissa Default Value 1 0 0 0 1 0 0 V Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Mantissa Default Value V: Variable based on factory calibration YES IOUT_CAL_OFFSET Returns the value of the offset correction term used to correct the measured output current Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r/w r r Function Exponent Mantissa Default Value 1 1 1 0 0 V 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r/w r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 V: Variable based on factory calibration YES VOUT_OV_FAULT_LIMIT Sets the voltage level for an output overvoltage fault. Exponent is fixed at -10. Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w Function High Byte Default Value 0 0 0 0 0 1 0 1 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 0 0 0 0 1 0 1 0 YES VOUT_OV_FAULT_RESPONSE Instructs the module on what action to take in response to a output overvoltage fault Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r r r RSP RSP Function RS[2] RS[1] RS[0] X X X [1] [0] Default Value 1 1 1 1 1 1 0 0 YES 38 39 40 41 Non-Volatile Memory Storage Brief Description June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 27 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Table 6 (continued) Hex Code 44 45 Command Brief Description Non-Volatile Memory Storage VOUT_UV_FAULT_LIMIT Sets the voltage level for an output undervoltage fault. Exponent is fixed at -10. Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w Function High Byte Default Value 0 0 0 0 0 1 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 1 0 0 0 1 1 1 1 YES Instructs the module on what action to take in response to a output undervoltage fault Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 Access r/w r/w r/w r/w r/w r r RSP RSP Function RS[2] RS[1] RS[0] X X [1] [0] Default Value 0 0 0 0 0 1 0 YES VOUT_UV_FAULT_RESPONSE 46 4A 5E June 15, 2016 IOUT_OC_FAULT_LIMIT IOUT_OC_WARN_LIMIT POWER_GOOD_ON Sets the output overcurrent fault level in A (cannot be changed) Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 Access r r r r r r r Function Exponent Mantissa Default Value 1 1 1 1 1 0 0 Bit Position 7 6 5 4 3 2 1 Access r r r r r r r Function Mantissa Default Value 0 0 0 1 0 0 1 Sets the output overcurrent warning level in A Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 Access r r r r r r r Function Exponent Mantissa Default Value 1 1 1 1 1 0 0 Bit Position 7 6 5 4 3 2 1 Access r r r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 0 1 0 0 0 0 r X 0 0 r 0 0 r 0 0 r 0 0 r/w YES 0 Sets the output voltage level at which the PGOOD pin is asserted high. Exponent is fixed at -10. Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w Function High Byte Default Value 0 0 0 0 0 1 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 0 1 1 0 1 0 1 0 (c)2016 General Electric Corporation. All rights reserved. YES YES Page 28 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Table 6 (continued) Hex Code 5F 61 78 79 7A 7B June 15, 2016 Command POWER_GOOD_OFF TON_RISE STATUS_BYTE Non-Volatile Memory Storage Brief Description Sets the output voltage level at which the PGOOD pin is de-asserted low. Exponent is fixed at -10. Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w Function High Byte Default Value 0 0 0 0 0 1 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 0 1 0 1 0 0 1 0 YES Sets the rise time of the output voltage during startup Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 Access r r r r r r r Function Exponent Mantissa Default Value 1 1 1 0 0 0 0 Bit Position 7 6 5 4 3 2 1 Access r/w r/w r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 1 0 1 0 1 YES 0 r/w 0 0 r/w 1 Returns one byte of information with a summary of the most critical module faults Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r VOUT IOUT_ VIN_U OTHE Flag TEMP CML X OFF _OV OC V R Default Value 0 0 0 0 0 0 0 0 STATUS_WORD Returns two bytes of information with a summary of the module's fault/warning conditions Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r IOUT_ PGOO Flag X X X X X VOUT OC D Default Value 0 0 0 0 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r VOUT IOUT_ VIN_U OTHE Flag TEMP CML X OFF _OV OC V R Default Value 0 0 0 0 0 0 0 0 STATUS_VOUT Returns one byte of information with the status of the module's output voltage related faults Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Flag VOUT_OV X X VOUT_UV X X X X Default Value 0 0 0 0 0 0 0 0 STATUS_IOUT Returns one byte of information with the status of the module's output current related faults Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Flag IOUT_OC X IOUT_OC_WARN X X X X X Default Value 0 0 0 0 0 0 0 0 (c)2016 General Electric Corporation. All rights reserved. Page 29 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Table 6 (continued) Hex Code 7D 7E 88 8B 8C 98 June 15, 2016 Command STATUS_TEMPERATURE STATUS_CML READ_VIN Non-Volatile Memory Storage Brief Description Returns one byte of information with the status of the module's temperature related faults Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Flag OT_FAULT OT_WARN X X X X X X Default Value 0 0 0 0 0 0 0 0 Returns one byte of information with the status of the module's communication related faults Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Other Invalid Invalid PEC Flag Comm X X X X Command Data Fail Fault Default Value 0 0 0 0 0 0 0 0 Returns the value of the input voltage applied to the module Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 Access r r r r r r r Function Exponent Mantissa Default Value 1 1 0 1 1 0 0 Bit Position 7 6 5 4 3 2 1 Access r r r r r r r Function Mantissa Default Value 0 0 0 0 0 0 0 0 r 0 0 r 0 READ_VOUT Returns the value of the output voltage of the module. Exponent is fixed at -10. Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mantissa Default Value 0 0 0 0 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mantissa Default Value 0 0 0 0 0 0 0 0 READ_IOUT Returns the value of the output current of the module Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 Access r r r r r r r Function Exponent Mantissa Default Value 1 1 1 0 0 0 0 Bit Position 7 6 5 4 3 2 1 Access r r r r r r r Function Mantissa Default Value 0 0 0 0 0 0 0 PMBUS_REVISION 0 r 0 0 r 0 Returns one byte indicating the module is compliant to PMBus Spec. 1.1 (read only) Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Default Value 0 0 0 1 0 0 0 1 (c)2016 General Electric Corporation. All rights reserved. YES Page 30 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Table 6 (continued) Hex Code Command A0 MFR_VIN_MIN A4 D0 D4 D5 MFR_VOUT_MIN MFR_SPECIFIC_00 VOUT_CAL_OFFSET VOUT_CAL_GAIN June 15, 2016 Non-Volatile Memory Storage Brief Description Returns the minimum input voltage the module is specified to operate at (read only) Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Exponent Mantissa Default Value 1 1 1 1 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mantissa Default Value 0 0 0 0 1 1 0 0 YES Returns the minimum output voltage possible from the module (read only) Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 Access r r r r r r r Function Mantissa Default Value 0 0 0 0 0 0 1 Bit Position 7 6 5 4 3 2 1 Access r r r r r r r Function Mantissa Default Value 0 1 1 0 0 1 1 YES Returns module name information (read only) Format Unsigned Binary Bit Position 7 6 5 4 3 Access r r r r r Function Reserved Default Value 0 0 0 0 0 Bit Position 7 6 5 4 3 Access r r r r r Function Module Name Default Value 0 0 0 1 0 0 r 0 0 r 0 2 r 1 r 0 2 r 0 0 1 0 r r Reserved 1 0 1 0 r YES Applies an offset to the READ_VOUT command results to calibrate out offset errors in module measurements of the output voltage (between -125mV and +124mV). Exponent is fixed at -10. Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r/w r r r r r r r Function Mantissa Default Value V 0 0 0 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Mantissa Default Value V V V V V V V V YES Applies a gain correction to the READ_VOUT command results to calibrate out gain errors in module measurements of the output voltage (between -0.125 and 0.121) Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r/w Function Exponent Mantissa Default Value 1 1 0 0 0 0 0 V Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Mantissa Default Value V V V V V V V V YES (c)2016 General Electric Corporation. All rights reserved. Page 31 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Table 6 (continued) Hex Code D6 D7 June 15, 2016 Command VIN_CAL_OFFSET VIN_CAL_GAIN Brief Description Non-Volatile Memory Storage Applies an offset correction to the READ_VIN command results to calibrate out offset errors in module measurements of the input voltage (between -2V and +1.968V) Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r/w r r r/w Function Exponent Mantissa Default Value 1 1 0 1 V 0 0 V Bit Position 7 6 5 4 3 2 1 0 Access r r r/w r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 V V V V V V YES Applies a gain correction to the READ_VIN command results to calibrate out gain errors in module measurements of the input voltage (between -0.125 and 0.121) Format Linear, two's complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r/w r r r/w Function Exponent Mantissa Default Value 1 1 0 0 V 0 0 V Bit Position 7 6 5 4 3 2 1 0 Access r r r r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 0 V V V V V YES (c)2016 General Electric Corporation. All rights reserved. Page 32 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Thermal Considerations Power modules operate in a variety of thermal environments; however, sufficient cooling should always be provided to help ensure reliable operation. Considerations include ambient temperature, airflow, module power dissipation, and the need for increased reliability. A reduction in the operating temperature of the module will result in an increase in reliability. The thermal data presented here is based on physical measurements taken in a wind tunnel. The test set-up is shown in Figure 49. The preferred airflow direction for the module is in Figure 50. temperatures at these points should not exceed 130oC at L1 and 125C at Q3. The output power of the module should not exceed the rated power of the module (Vo,set x Io,max). Please refer to the Application Note "Thermal Characterization Process For Open-Frame Board-Mounted Power Modules" for a detailed discussion of thermal aspects including maximum device temperatures. 25.4_ (1.0) Wind Tunnel PWBs Power Module 76.2_ (3.0) x 12.7_ (0.50) Probe Location for measuring airflow and ambient temperature Figure 50. Preferred airflow direction and location of hotspot of the module (Tref). Air flow Figure 49. Thermal Test Setup. The thermal reference points, Tref used in the specifications are also shown in Figure 50. For reliable operation the June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 33 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Example Application Circuit Requirements: Vin: 12V Vout: Iout: 1.8V 4.5A max., worst case load transient is from 3A to 4.5A Vout: 1.5% of Vout (27mV) for worst case load transient Vin, ripple 1.5% of Vin (180mV, p-p) Vin+ Vout+ VIN VOUT VS+ PGOOD RTUNE MODULE CTUNE SEQ CI3 CI2 CI1 TRIM DATA CO1 CO2 CO3 ADDR0 SMBALRT# RTrim ADDR1 ON/OFF RADDR1 RADDR0 SIG_GND GND CI1 SYNC GND VS- Decoupling cap - 1x0.047F/16V ceramic capacitor (e.g. Murata LLL185R71C473MA01) CI2 2x22F/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20) CI3 470F/16V bulk electrolytic CO1 Decoupling cap - 1x0.047F/16V ceramic capacitor (e.g. Murata LLL185R71C473MA01) + 0.1uF/16V 0402size ceramic capacitor CO2 4x47F/6.3V ceramic capacitor CO3 CTune RTune 2200pF ceramic capacitor (can be 1206, 0805 or 0603 size) 300 SMT resistor (can be 1206, 0805 or 0603 size) RTrim 10k SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%) Note: The DATA, CLK and SMBALRT pins do not have any pull-up resistors inside the module. Typically, the SMBus master controller will have the pull-up resistors as well as provide the driving source for these signals. June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 34 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Mechanical Outline Dimensions are in millimeters and (inches). Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated] x.xx mm 0.25 mm (x.xxx in 0.010 in.) June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 35 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Recommended Pad Layout Dimensions are in millimeters and (inches). Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated] x.xx mm 0.25 mm (x.xxx in 0.010 in.) 2 If June 15, 2016 PIN FUNCTION PIN FUNCTION 1 2 3 4 5 6 7 8 9 ON/OFF VIN SEQ GND TRIM VOUT VS+ VSPG 10 11 12 13 14 15 16 SYNC2 CLK DATA SMBALERT# SIG_GND ADDR1 ADDR0 unused, connect to Ground (c)2016 General Electric Corporation. All rights reserved. Page 36 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Packaging Details The 12V Digital SlimLynxTM 6A Open Frame modules are supplied in tape & reel as standard. Modules are shipped in quantities of 600 modules per reel. All Dimensions are in millimeters and (in inches). Reel Dimensions: Outside Dimensions: 330.2 mm (13.00) Inside Dimensions: Tape Width: 177.8 mm (7.00") 44.00 mm (1.732") June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 37 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current when stored at the following conditions: < 40 C, < 90% relative humidity. Surface Mount Information Pick and Place 300 Per J-STD-020 Rev. D Nozzle Recommendations Peak Temp 260C 250 Reflow Temp (C)) The 6A Digital SlimLynxTM Open Frame modules use an open frame construction and are designed for a fully automated assembly process. The modules are fitted with a label designed to provide a large surface area for pick and place operations. The label meets all the requirements for surface mount processing, as well as safety standards, and is able to withstand reflow temperatures of up to 300oC. The label also carries product information such as product code, serial number and the location of manufacture. 200 * Min. Time Above 235C 15 Seconds Cooling Zone 150 Heating Zone 1C/Second *Time Above 217C 60 Seconds 100 50 0 Reflow Time (Seconds) The module weight has been kept to a minimum by using open frame construction. Variables such as nozzle size, tip style, vacuum pressure and placement speed should be considered to optimize this process. The minimum recommended inside nozzle diameter for reliable operation is 3mm. The maximum nozzle outer diameter, which will safely fit within the allowable component spacing, is 7 mm. Lead Free Soldering The modules are lead-free (Pb-free) and RoHS compliant and fully compatible in a Pb-free soldering process. Failure to observe the instructions below may result in the failure of or cause damage to the modules and can adversely affect long-term reliability. Figure 51. Recommended linear reflow profile using Sn/Ag/Cu solder. Post Solder Cleaning and Drying Considerations Post solder cleaning is usually the final circuit-board assembly process prior to electrical board testing. The result of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the finished circuit-board assembly. For guidance on appropriate soldering, cleaning and drying procedures, refer to Board Mounted Power Modules: Soldering and Cleaning Application Note (AN04-001). Pb-free Reflow Profile Power Systems will comply with J-STD-020 Rev. D (Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices) for both Pb-free solder profiles and MSL classification procedures. This standard provides a recommended forced-air-convection reflow profile based on the volume and thickness of the package (table 4-2). The suggested Pb-free solder paste is Sn/Ag/Cu (SAC). The recommended linear reflow profile using Sn/Ag/Cu solder is shown in Fig. 50. Soldering outside of the recommended profile requires testing to verify results and performance. MSL Rating The 6A Digital SlimLynxTM Open Frame modules have a MSL rating of 2a. Storage and Handling The recommended storage environment and handling procedures for moisture-sensitive surface mount packages is detailed in J-STD-033 Rev. A (Handling, Packing, Shipping and Use of Moisture/Reflow Sensitive Surface Mount Devices). Moisture barrier bags (MBB) with desiccant are required for MSL ratings of 2 or greater. These sealed packages should not be broken until time of use. Once the original package is broken, the floor life of the product at conditions of 30C and 60% relative humidity varies according to the MSL rating (see J-STD-033A). The shelf life for dry packed SMT packages will be a minimum of 12 months from the bag seal date, June 15, 2016 (c)2016 General Electric Corporation. All rights reserved. Page 38 GE Data Sheet 6A Digital SlimLynxTM Open Frame: Non-Isolated DC-DC Power Modules 3Vdc -14.4Vdc input; 0.45Vdc to 5.5Vdc output; 6A Output Current Ordering Information Please contact your GE Sales Representative for pricing, availability and optional features. Table 9. Device Codes Device Code Input Voltage Range Output Voltage Output Current On/Off Logic Sequencing Comcodes UNDT006A0X3-SRZ 3 - 14.4Vdc 0.45 - 5.5 Vdc 6A Negative Yes 150035952 UNDT006A0X43-SRZ 3 - 14.4Vdc 0.45 - 5.5 Vdc 6A Positive Yes 150035954 On/Off logic Remote Sense Options 3 -SR Z 3 = Remote Sense S = Surface Mount Z = ROHS6 -Z refers to RoHS compliant parts Table 10. Coding Scheme Package Identifier Family U ND T 006A0 P=Pico ND=SlimLynx Digital Open Frame T=with EZ Sequence 6A U=Micro M=Mega G=Giga NV=SlimLynx Analog Open Frame Sequencing Output Option current X=without sequencing Output voltage X X= 4= programm positive able output No entry = negative ROHS Compliance R = Tape & Reel GE Digital Non-Isolated DC-DC products use technology licensed from Power-One, protected by US patents: US20040246754, US2004090219A1, US2004093533A1, US2004123164A1, US2004123167A1, US2004178780A1, US2004179382A1, US20050200344, US20050223252, US2005289373A1, US20060061214, US2006015616A1, US20060174145, US20070226526, US20070234095, US20070240000, US20080052551, US20080072080, US20080186006, US6741099, US6788036, US6936999, US6949916, US7000125, US7049798, US7068021, US7080265, US7249267, US7266709, US7315156, US7372682, US7373527, US7394445, US7456617, US7459892, US7493504, US7526660. Outside the US the Power-One licensed technology is protected by patents: AU3287379AA, AU3287437AA, AU3290643AA, AU3291357AA, CN10371856C, CN1045261OC, CN10458656C, CN10459360C, CN10465848C, CN11069332A, CN11124619A, CN11346682A, CN1685299A, CN1685459A, CN1685582A, CN1685583A, CN1698023A, CN1802619A, EP1561156A1, EP1561268A2, EP1576710A1, EP1576711A1, EP1604254A4, EP1604264A4, EP1714369A2, EP1745536A4, EP1769382A4, EP1899789A2, EP1984801A2, W004044718A1, W004045042A3, W004045042C1, W004062061 A1, W004062062A1, W004070780A3, W004084390A3, W004084391A3, W005079227A3, W005081771A3, W006019569A3, W02007001584A3, W02007094935A3 Contact Us For more information, call us at USA/Canada: +1 888 546 3243, or +1 972 244 9288 Asia-Pacific: +86.021.54279977*808 Europe, Middle-East and Africa: +49.89.878067-280 www.gecriticalpower.com GE Critical Power reserves the right to make changes to the product(s) or information contained herein without notice, and no liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. June 15, 2016 (c)2016 General Electric Company. All International rights reserved. Version 1.6