GE G Data D Sheett NQR002A N A0X4: No on-Isolatted DC-D DC Powe er Module es 3Vdc 3 -14Vd dc input; 0.6Vdc to 5.5 5Vdc outpu ut; 2A Outp put Currentt Fea atures Ro oHS Compliaant Application A ns Distributed d power archittectures Intermedia ate bus voltage e applications Telecomm munications equ uipment Servers an nd storage app plications Networkin ng equipment Industrial applications Compliant to RoHS EU Direcctive 2002/95/E EC (Z versions) n a Pb-free or SnPb S wave-sold dering Compatible in environment (Z versions) oltage range (3 3Vdc-14Vdc) Wide Input vo Output voltag ge programmable from 0.6 Vd dc to 5.5Vdc via external re esistor Tunable Loop pTM to optimize dynamic output voltage response Fixed switchin ng frequency Output overcurrent protection (non-latchin ng) ature protection Over tempera Remote On/O Off Small size: 10 0.4 mm x 13.5 mm m x 8.1 mm Wide operatin ng temperature range (-40C to 85C) UL* 60950-1R Recognized, CS SA C22.2 No. 60950-1-03 Certified, and VDE 0805:200 01-12 (EN6095 50-1) Licensed nd ISO 14001 certified c manuffacturing ISO** 9001 an facilities (0.4 41 in x 0.53 in x 0.32 in) Description D n The T NQR002A0 0X4 SIP power modules are non-isolated dcc-dc converterss in an industryy standard pacckage that can deliver up to 2A 2 of output cu urrent with a fu ull load efficien ncy of 93% at 5.0Vdc 5 output voltage v (VIN = 12Vdc). 1 These modules opera ate over a wide w range of iinput voltage (V VIN = 3Vdc-14V Vdc) and provid de a precisely regulated r output voltage from m 0.6Vdc to 5.5 5Vdc, programmable p e via an external resistor. Fea atures include remote On/Offf, adjustable ou utput voltage, over o current an nd over temperature t protection. A ne ew feature, the e Tunable Loop pTM, allows the user u to optimizze the dynamicc response of th he converter to t match the lo oad. * UL is a registtered tradema ark of Underwriiters Laboratorries, Inc. CSA C is a registe ered trademark of Canadian Standards Association. VDE V is a tradem mark of Verban nd Deutscher Elektrotechnike E er e.V. ** * ISO is a regisstered tradema ark of the Interrnational Organization of Standards Jun ne 18, 2014 (c)2014 General Electric Compan ny. All rights reserved. GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A 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 Input Voltage Device Symbol Min Max Unit All VIN -0.3 15 Vdc All TA -40 85 C All Tstg -55 125 C Continuous Operating Ambient Temperature (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 3 12 Max Unit Operating Input Voltage All VIN Maximum Input Current (VIN=3V to 14V, IO=IO, max ) All IIN,max 14 Vdc 2.0 Adc (VIN = 9Vdc, IO = 0, module enabled) VO,set = 0.6 Vdc IIN,No load 20 mA (VIN = 12Vdc, IO = 0, module enabled) VO,set = 5.0Vdc IIN,No load 48 mA All IIN,stand-by 1.5 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 20 mAp-p Input Ripple Rejection (120Hz) All -65 dB Input No Load Current Input Stand-by Current (VIN = 12Vdc, module disabled) 1 A 2s CAUTION: This power module is not internally fused. An input line fuse must always be used. This power module can be used in a wide variety of applications, ranging from simple standalone operation to an integrated part of sophisticated power architecture. To preserve maximum flexibility, internal fusing is not included; however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating of 4A (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer's data sheet for further information. June 18, 2014 (c)2014 General Electric Company. All rights reserved. Page 2 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Electrical Specifications (continued) Parameter Output Voltage Set-point (with 0.5% tolerance for external resistor used to set output voltage) Output Voltage (Over all operating input voltage, resistive load, and temperature conditions until end of life) Adjustment Range Selected by an external resistor Output Regulation (for Vo 2.5Vdc) Line (VIN=VIN, min to VIN, max) Device Symbol Min All VO, set -1.5 All VO, set -3.0 All VO 0.6 All Load (IO=IO, min to IO, max) -0.4 All Typ Max Unit +1.5 % VO, set +3.0 % VO, set 5.5 Vdc +0.4 % VO, set 0.8 % VO, set +10 mV 20 mV Output Regulation (for Vo <2.5Vdc) Line (VIN=VIN, min to VIN, max) All Load (IO=IO, min to IO, max) All -10 Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max Cout = 22F) Peak-to-Peak (5Hz to 20MHz bandwidth) All 50 100 mVpk-pk RMS (5Hz to 20MHz bandwidth) All 20 38 mVrms External Capacitance1 Without the Tunable LoopTM ESR 1 m All CO, max 22 47 F All All CO, max CO, max 0 0 1000 3000 F F 0 With the Tunable LoopTM ESR 0.15 m ESR 10 m Output Current All Io Output Current Limit Inception (Hiccup Mode ) All IO, lim 180 2 % Io,max Adc Output Short-Circuit Current All IO, s/c 140 mArms (VO250mV) ( Hiccup Mode ) Efficiency (VIN= 6Vdc) VIN= 12Vdc, TA=25C IO=IO, max , VO= VO,set Switching Frequency VO,set = 0.6Vdc 69.2 % VO, set = 1.2Vdc 80.4 % % VO,set = 1.8Vdc 85.5 VO,set = 2.5Vdc 88.9 % VO,set = 3.3Vdc 91 % VO,set = 5.0Vdc All fsw 93.3 600 % kHz 1 External capacitors may require using the new Tunable Loop feature to ensure that the module is stable as well as getting the best transient response. See the Tunable LoopTM section for details. June 18, 2014 (c)2014 General Electric Company. All rights reserved. Page 3 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current General Specifications Parameter Min Calculated MTBF (VIN=12V, VO=5Vdc, IO=0.8IO, max, TA=40C) Per Telcordia SR-332 Issue3: Method 1, Case 3 Weight Typ Max 138,941,752 1.2 (0.042) Unit Hours g (oz.) General 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 Min Typ Max Unit 3.0 -- 1 mA -- VIN, max V On/Off Signal interface (VIN=VIN, min to VIN, max; Open collector or equivalent signal referenced to GND) Logic High (Enable pin open - Module ON) Input High Current All IIH Input High Voltage All VIH Logic Low (Module Off) Input Low Current All IIL -- -- 10 A Input Low Voltage All VIL -0.3 -- 0.3 V All Tdelay 5 msec All Tdelay 5.2 msec All Trise 1.4 msec Turn-On Delay and Rise Times (IO=IO, max , VIN = VIN, nom, Vo to within 1% of steady state) Case 1: Enable input is enabled and then input power is applied (delay from instant at which VIN =VIN, min until Vo=10% of Vo,set) Case 2: Input power is applied for at least one second and then Enable input is set enabled (delay from instant at which Enable is enabled until Vo=10% of Vo, Output voltage Rise time (time for Vo to rise from 10% of Vo,set to 90% of Vo, set) Output voltage overshoot IO= IO, max; VIN = VIN, min to VIN, max, TA = 25 Overtemperature Protection 3.0 % VO, set oC All Tref 117 C Input Undervoltage Lockout Turn-on Threshold All 2.95 Vdc Turn-off Threshold All 2.8 Vdc June 18, 2014 (c)2014 General Electric Company. All rights reserved. Page 4 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Characteristic Curves The following figures provide typical characteristics for the NQR002 (0.6V, 2A) at 25oC 2.5 90 70 OUTPUT CURRENT, Io (A) EFFICIENCY, (%) 80 Vin = 3V 60 50 Vin = 14V Vin = 12V 40 30 0 0.5 1 1.5 NC 2.0 1.5 1.0 0.5 0.0 25 2 OUTPUT CURRENT, IO (A) 75 85 VIN (V) (5V/div) VO (V) (200mV/div) TIME, t (5ms/div) Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max, Vin=12V,Cext= 22uF). TIME, t (500s /div) Figure 4. Transient Response to Dynamic Load Change from 0% to 50% to 0% . INPUT VOLTAGE VO (V) (200mV/div) 65 Figure 2. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE ON/OFF VOLTAGE VON/OFF (V) (5V/div) OUTPUT VOLTAGE 55 OUTPUT VOLTAGE VO (V) (100mV/div) TIME, t (2s/div) Figure 3. Typical output ripple and noise (VIN = 12V, Io = Io,max). June 18, 2014 45 AMBIENT TEMPERATURE, TA OC OUTPUT CURRENT, .........IO (A) (1Adiv) VO (V) (20mV/div) OUTPUT VOLTAGE Figure 1. Converter Efficiency versus Output Current. 35 TIME, t (5ms/div) Figure 6. Typical Start-up Using Input Voltage (VIN = 12V, Cext= 22uF ,Io = Io,max). (c)2014 General Electric Company. All rights reserved. Page 5 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Characteristic Curves The following figures provide typical characteristics for the NQR002 (1.2V, 2A) at 25oC 2.5 100 80 OUTPUT CURRENT, Io (A) EFFICIENCY, (%) 90 Vin = 3V 70 60 Vin = 14V Vin = 12V 50 40 0 0.5 1 1.5 NC 2.0 1.5 1.0 0.5 0.0 25 2 35 OUTPUT CURRENT, IO (A) OUTPUT VOLTAGE VO (V) (100mV/div) IO (A) (1Adiv) INPUT VOLTAGE VIN (V) (5V/div) VO (V) (500mV/div) VON/OFF (V) (5V/div) VO (V) (500mV/div) 85 TIME, t (500s /div) OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE June 18, 2014 75 Figure 10. Transient Response to Dynamic Load Change from 0% to 50% to 0%. TIME, t (5ms/div) Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max, Vin=12V,Cext= 22uF). 65 Figure 8. Derating Output Current versus Ambient Temperature and Airflow. TIME, t (2s/div) Figure 9. Typical output ripple and noise (VIN = 12V, Io = Io,max). 55 AMBIENT TEMPERATURE, TA OC OUTPUT CURRENT, VO (V) (20mV/div) OUTPUT VOLTAGE Figure 7. Converter Efficiency versus Output Current. 45 TIME, t (5ms/div) Figure 12. Typical Start-up Using Input Voltage (VIN = 12V, Cext= 22uF, Io = Io,max). (c)2014 General Electric Company. All rights reserved. Page 6 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Characteristic Curves The following figures provide typical characteristics for the NQR002 (1.8V, 2A) at 25oC. 2.5 100 OUTPUT CURRENT, Io (A) 90 EFFICIENCY, (%) Vin = 12V Vin = 3V 80 Vin = 14V 70 60 50 40 0 0.5 1 1.5 NC 2.0 1.5 1.0 0.5 0.0 25 2 OUTPUT CURRENT, IO (A) 75 85 OUTPUT VOLTAGE VO (V) (100mV/div) IO (A) (1Adiv) TIME, t (500s /div) INPUT VOLTAGE VIN (V) (5V/div) VO(V) (500mV/div) VON/OFF (V) (5V/div) VO (V) (500mV/div) 65 Figure 16. Transient Response to Dynamic Load Change from 0% to 50% to 0%. OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE 55 Figure 14. Derating Output Current versus Ambient Temperature and Airflow. TIME, t (2s/div) Figure 15. Typical output ripple and noise (VIN = 12V, Io = Io,max). TIME, t (5ms/div) Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max, Vin=12V,Cext=22uF,). June 18, 2014 45 AMBIENT TEMPERATURE, TA OC OUTPUT CURRENT, VO (V) (20mV/div) OUTPUT VOLTAGE Figure 13. Converter Efficiency versus Output Current. 35 TIME, t (5ms/div) Figure 18. Typical Start-up Using Input Voltage (VIN = 12V, Cext=22uF, Io = Io,max). (c)2014 General Electric Company. All rights reserved. Page 7 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Characteristic Curves The following figures provide typical characteristics for the NQR002 (2.5V, 2A) at 25oC. 2.5 100 EFFICIENCY, (%) OUTPUT CURRENT, Io (A) Vin = 12V 90 Vin = 3V 80 Vin = 14V 70 60 50 40 0 0.5 1 1.5 NC 2.0 1.5 1.0 0.5 0.0 25 2 OUTPUT CURRENT, IO (A) June 18, 2014 85 VO (V) (100mV/div) IO (A) (1Adiv) OUTPUT CURRENT, OUTPUT VOLTAGE Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max, Vin=12V,Cext= 22uF ). 75 Figure 22. Transient Response to Dynamic Load Change from 0% to 50% to 0%. VIN (V) (5V/div) VON/PFF (V) (5V/div) VO (V) (1V/div) TIME, t (5ms/div) 65 TIME, t (500s /div) INPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE Figure 21. Typical output ripple and noise (VIN = 12V, Io = Io,max). 55 AMBIENT TEMPERATURE, TA OC VO (V) (1V/div) TIME, t (2s/div) 45 Figure 20. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE VO (V) (20mV/div) OUTPUT VOLTAGE Figure 19. Converter Efficiency versus Output Current. 35 TIME, t (5ms/div) Figure 24. Typical Start-up Using Input Voltage (VIN = 12V, Cext= 22uF, Io = Io,max). (c)2014 General Electric Company. All rights reserved. Page 8 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Characteristic Curves The following figures provide typical characteristics for the NQR002 (3.3V, 2A) at 25oC. 2.5 100 NC Vin = 12V 90 EFFICIENCY, (%) OUTPUT CURRENT, Io (A) 95 Vin = 4.5V 85 Vin = 14V 80 75 70 65 60 0 0.5 1 1.5 2.0 1.5 1.0 0.5 0.0 25 2 OUTPUT CURRENT, IO (A) June 18, 2014 75 85 OUTPUT VOLTAGE VO (V) (100mV/div) IO (A) (1Adiv) OUTPUT CURRENT, TIME, t (500s /div) VIN (V) (5V/div) VON?OFF (V) (5V/div) VO (V) (1V/div) Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max, Vin=12V,Cext= 22uF) 65 Figure 28. Transient Response to Dynamic Load Change from 0% to 50% to 0%. VO (V) (1V/div) ON/OFF VOLTAGE OUTPUT VOLTAGE TIME, t (5ms/div) 55 Figure 26. Derating Output Current versus Ambient Temperature and Airflow. INPUT VOLTAGE TIME, t (2s/div) Figure 27. Typical output ripple and noise (VIN = 12V, Io = Io,max). 45 AMBIENT TEMPERATURE, TA OC OUTPUT VOLTAGE VO (V) (20mV/div) OUTPUT VOLTAGE Figure 25. Converter Efficiency versus Output Current. 35 TIME, t (5ms/div) Figure 30. Typical Start-up Using Input Voltage (VIN = 12V, Cext= 22uF, Io = Io,max). (c)2014 General Electric Company. All rights reserved. Page 9 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Characteristic Curves The following figures provide typical characteristics for the NQR002 (5V, 2A) at 25oC. 2.5 100 NC Vin = 6.5V OUTPUT CURRENT, Io (A) 95 EFFICIENCY, (%) Vin = 12V 90 85 Vin = 14V 80 75 70 0 0.5 1 1.5 2.0 1.5 1.0 0.5 0.0 25 2 35 OUTPUT CURRENT, IO (A) VO (V) (100mV/div) OUTPUT VOLTAGE VIN (V) (5V/div) Vo (V) (2V/div) INPUT VOLTAGE VON/OFF (V) (5V/div) VO (V) (2V/div) 85 TIME, t (500s /div) OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE June 18, 2014 75 Figure 34. Transient Response to Dynamic Load Change from 0% to 50% to 0%. TIME, t (5ms/div) Figure 35. Typical Start-up Using On/Off Voltage (Io = Io,max, Vin=12V,Cext= 22uF). 65 IO (A) (1Adiv) TIME, t (2s/div) Figure 33. Typical output ripple and noise (VIN = 12V, Io = Io,max). 55 Figure 32. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT CURRENT, VO (V) (20mV/div) OUTPUT VOLTAGE Figure 31. Converter Efficiency versus Output Current. 45 AMBIENT TEMPERATURE, TA OC TIME, t (5ms/div) Figure 36. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max, Cext= 22uF). (c)2014 General Electric Company. All rights reserved. Page 10 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Test Configurations Design Considerations CURRENT PROBE The NQR002A0X4 2A 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. LTEST VIN(+) BATTERY 1H CIN CS 1000F Electrolytic To minimize input voltage ripple, low-ESR ceramic or polymer capacitors are recommended at the input of the module. Figure 4 shows the input ripple voltage for various output voltages at 2A of load current with 1x10 F or 1x22 F ceramic capacitors and an input of 12V. 2x100F Tantalum E.S.R.<0.1 @ 20C 100kHz COM NOTE: Measure input reflected ripple current with a simulated source inductance (LTEST) of 1H. Capacitor CS offsets possible battery impedance. Measure current as shown above. 120 COPPER STRIP RESISTIVE LOAD 1uF . 10uF SCOPE COM GROUND PLANE NOTE: All voltage measurements to be taken at the module terminals, as shown above. If sockets are used then Kelvin connections are required at the module terminals to avoid measurement errors due to socket contact resistance. Figure 2. Output Ripple and Noise Test Setup. Rdistribution Rcontact Rcontact VIN(+) 1x10uF 110 Figure 1. Input Reflected Ripple Current Test Setup. VO (+) Input Filtering Input Ripple Voltage (mVp-p) TO OSCILLOSCOPE 1x22uF 100 90 80 70 60 50 40 30 20 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Output Voltage (Vdc) Figure 4. Input ripple voltage for various output voltages with 1x10 F or 1x22 F ceramic capacitors at the input (2A load). Input voltage is 12V. Rdistribution VO Output Filtering Rdistribution RLOAD VO VIN Rcontact Rcontact COM Rdistribution COM NOTE: All voltage measurements to be taken at the module terminals, as shown above. If sockets are used then Kelvin connections are required at the module terminals to avoid measurement errors due to socket contact resistance. Figure 3. Output Voltage and Efficiency Test Setup. VO. IO Efficiency June 18, 2014 = VIN. IIN x 100 % The NQR002A0X4 2A modules are designed for low output ripple voltage and will meet the maximum output ripple specification with no external capacitors. 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. 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 ceramic and polymer are recommended to improve the dynamic response of the module. Figure 5 provides output ripple information for different external capacitance values at various Vo and for a load current of 2A. 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. (c)2014 General Electric Company. All rights reserved. Page 11 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Feature Descriptions 20 Enable (Remote On/Off) 1x22uF External Cap 18 2x22uF External Cap Ripple(mVp-p) The NQR002A0X4 2A power modules feature a Enable pin with positive logic for remote On/Off operation. If the Enable pin is not being used, leave the pin open (the module will be ON). The Enable signal (VOn/Off) is referenced to ground. During a Logic High on the Enable pin, the module remains ON. During LogicLow, the module is turned OFF. 16 14 12 10 VIN+ MODULE 8 0.5 1.5 2.5 3.5 4.5 PWM Enable 20K Rpullup Output Voltage(Volts) 20K Figure 5. Output ripple voltage for various output voltages with external 1x22 F, 2x22 F ceramic capacitors at the output (2A load). Input voltage is 12V. I ON/OFF Q3 10K ON/OFF + VON/OFF Q2 10K Safety Considerations GND 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, CSA C22.2 No. 60950-1-03, and VDE 0850:2001-12 (EN60950-1) Licensed. 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. An input fuse for the module is recommended. Due to the wide input voltage and output voltage ranges of the module, a 4A, 125Vdc fast acting fuse is recommended 10K 10K Q1 _ Figure 6. Remote On/Off Implementation(positive logic). Overcurrent Protection 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. The average output current during hiccup is 10% IO, max. Overtemperature Protection To provide protection in a fault condition, these modules are equipped with a thermal shutdown circuit. The unit will shut down if the overtemperature threshold of 130C is exceeded at the thermal reference point Tref. The thermal shutdown is not intended as a guarantee that the unit will survive temperatures beyond its rating. Once the unit goes into thermal shutdown it will then wait to cool before attempting to restart. Input Undervoltage Lockout 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. Output Voltage Programming The output voltage of the NQR002A0X4 2A module can be programmed to any voltage from 0.6dc to 5.5Vdc by connecting a resistor between the Trim+ and 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. 7. The Lower Limit curve shows that for output voltages of 2.4V and higher, the input voltage needs to be larger than the minimum of 3V. June 18, 2014 (c)2014 General Electric Company. All rights reserved. Page 12 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Feature Descriptions (continued) Table 1 VO, set (V) 0.6 0.9 1.0 1.2 1.5 1.8 2.5 3.3 5.0 16 Input Voltage (v) 14 12 10 8 6 4 Rtrim (K) Open 40 30 20 13.33 10 6.316 4.444 2.727 2 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 Output Voltage (V) Figure 7. Output Voltage vs. Input Voltage Set Point Area plot showing limits where the output voltage can be set for different input voltages. Without an external resistor between Trim+ and 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, use the following equation: 12 Rtrim = k (Vo - 0.6) Rtrim is the external resistor in k By using a 0.5% tolerance trim resistor with a TC of 25ppm, a set point tolerance of 1.5% can be achieved as specified in the electrical specification. The POL Programming Tool available at www.lineagepower.com under the Design Tools section, helps determine the required trim resistor needed for a specific output voltage. V IN(+) V O(+) Vout ON/OFF LOAD TRIM R trim GND Vo is the desired output voltage Table 1 provides Rtrim values required for some common output voltages. Figure 8. Circuit configuration for programming output voltage using an external resistor. Voltage Margining Output voltage margining can be implemented in the NQR002A0X4 2A modules 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 9 shows the circuit configuration for output voltage margining. The POL Programming Tool, available at www.lineagepower.com under the Design Tools section, also calculates the values of Rmargin-up and Rmargin-down for a specific output voltage and % margin. Please consult your local Lineage Power Field Application Engineer or Account Manager for additional details. June 18, 2014 (c)2014 General Electric Company. All rights reserved. Page 13 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Feature Descriptions (continued) right value of external R-C to tune the module for best transient performance and stable operation for other output capacitance values. Vo Rmargin-down VOUT MODULE Q2 RTUNE Trim MODULE Rmargin-up CTUNE Rtrim TRIM GND Q1 RTrim GND Figure 9. Circuit Configuration for margining Output voltage. Monotonic Start-up and Shutdown The NQR002A0X4 2A modules have monotonic start-up and shutdown behavior for any combination of rated input voltage, output current and operating temperature range. Tunable LoopTM The NQR002A0X4 2A modules have a new feature that optimizes transient response of the module called Tunable LoopTM. External capacitors are usually added to improve output voltage transient response due to load current changes. Sensitive loads may also require additional output capacitance to reduce output ripple and noise. 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. To use the additional external capacitors in an optimal manner, the Tunable LoopTM feature allows the loop to be tuned externally by connecting a series R-C between the VOUT and TRIM pins of the module, as shown in Fig. 10. This R-C allows the user to externally adjust the voltage loop feedback compensation of the module to match the filter network connected to the output of the module. Recommended values of RTUNE and CTUNE are given in Tables 2 and 3. Table 2 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 1A to 2A step change (50% of full load), with an input voltage of 12V. Table 3 shows the recommended values of RTUNE and CTUNE for different values of ceramic output capacitors up to TBD, again for an input voltage of 12V. The value of RTUNE should never be lower than the values shown in Tables 3 and 4. Please contact your Lineage Power technical representative to obtain more details of this feature as well as for guidelines on how to select the June 18, 2014 Figure. 10. Circuit diagram showing connection of RTUME and CTUNE to tune the control loop of the module. Table 2. Recommended values of RTUNE and CTUNE to obtain transient deviation of 2% of Vout for a 1A step load with Vin=12V. Co 1x47F 2x47F 3x47F 4x47F 10x47F RTUNE 220 150 100 100 100 CTUNE 3900pF 10nF 18nF 18nF 22nF Table 3. General recommended values of of RTUNE and CTUNE for Vin=12V and various external ceramic capacitor combinations. Vo 5V 3.3V 2.5V 1.8V 1.2V 0.6V Co 1x22F1x47F 2x47F 2x47F 3x47F 330F Polymer RTUNE 220 220 150 150 100 100 CTUNE 2200pF3900pF 10nF 10nF 18nF 68nF V 81mV 61mV 35mV 34mV 23mV 12mV Table 4. Recommended values of RTUNE and CTUNE to obtain transient deviation of 2% of Vout for a 1A step load with Vin=5V Vo Co 3.3V 2.5V 1.8V 1.2V 0.6V 1x47F 2x47F 2x47F 3x47F 330F Polymer RTUNE 220 150 CTUNE 3900pF 10nF 62mV 35mV V (c)2014 General Electric Company. All rights reserved. 150 10nF 34mV 100 18nF 23mV 100 68nF 12mV Page 14 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Table 5. Recommended values of RTUNE and CTUNE to obtain transient deviation of 2% of Vout for a 1A step load with Vin=3.3V Vo 2.5V 1.8V 1.2V 0.6V Co 3x47F 2x47F 3x47F 330F Polymer RTUNE 100 150 100 100 CTUNE 18nF 10nF 18nF 68nF V 48mV 34mV 23mV 12mV June 18, 2014 (c)2014 General Electric Company. All rights reserved. Page 15 GE G Data D Shee et NQR002A N A0X4: No on-Isolate ed DC-D DC Powerr Module es 3V Vdc -14Vdcc input; 0.6 6Vdc to 5.5Vdc output; 2A Outpu ut Current Thermal T Co onsideratio ons Power P moduless operate in a variety v of therm mal environments; however, h sufficient cooling sh hould be provid ded to help enssure reliable operation. Considerations C ent temperaturre, airflow, mod dule include ambie power p dissipation, and the ne eed for increase ed reliability. A reduction in the e operating tem mperature of th he module will result in an incrrease in reliability. The therm mal data presen nted here h is based on physical mea asurements taken in a wind tunnel. The test set-up is show wn in Figure 11 1. The preferre ed airflow a direction n for the modu ule is in Figure 12. 1 W Tunnel Wind 50 0.8 [2.00] PWBs P Power Module Figure 12 2. Tref Tempera ature measure ement location. 76.2 [3.0] 7.24 [0.285] Probe Location P f measuring for a airflow and a ambient t temperature A Air Flo ow Post solder cleaning g is usually the e final circuit-board assemblyy proce ess prior to ele ectrical board testing. The ressult of inade equate cleanin ng and drying can c affect both h the reliability of a power p module and the testab bility of the finisshed circuit-board assem mbly. For guida ance on approp priate soldering g, clean ning and drying g procedures, refer r to Board M Mounted Poweer Modu ules: Soldering and Cleaning Application A Notte. Thro ough-Hole Le ead-Free Sold dering Inform mation Figure F 11. The ermal Test Set--up. The T thermal refference point, Tref used in the e specificationss of thermal deratin ng curves is sho own in Figure 12. 1 For reliable e operation o this temperature t sh hould not exceed 120oC. The T output pow wer of the module should not exceed the ratted power p of the module (Vo,set x Io,max). Please P refer to the t Application n Note "Therma al Characteriza ation Process P For Open-Frame Board-Mounted Po ower Modules"" for a detailed d discusssion of therma al aspects inclu uding maximum m device d tempera atures. Jun ne 18, 2014 ning and Dryying Considerrations Postt solder Clean These RoHS-compliant through-h hole products u use the SAC Ag/Cu) Pb-free solder and RoH HS-compliant components. c (Sn/A They are designed to t be processe ed through sing gle or dual wavve solde ering machiness. The pins havve an RoHS-compliant finish that is compatible with w both Pb and Pb-free wavve soldering proce esses. A maxim mum preheat ra ate of 3C/s is suggested. Th he wave e preheat process should be such s that the temperature t off the power p module board is kept below b 210C. For F Pb solder, the re ecommended pot temperatu ure is 260C, wh hile the Pb-free e solde er pot is 270C max. Not all RoHS-complian R nt through-hole e products can be processed with paste-throughp -hole Pb or Pb-free reflow r processs. If additional information is needed, please e consult with your Lineage Power representative e for more detaiils. (c) (c)2014 General Electric Companyy. All rights reservved. Pagee 16 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Example Application Circuit Requirements: Vin: Vout: 12V 1.8V Iout: 1A max., worst case load transient is from 1A to 1.5A Vout: 1.5% of Vout (27mV) for worst case load transient Vin, ripple 1.5% of Vin (180mV, p-p) Vin+ VIN MODULE + CI2 Vout+ VOUT RTUNE MODULE CI1 CTUNE Q3 ON/OFF TRIM GND CI1 1x10F/16V ceramic capacitor (e.g. TDK C Series) CI2 100F/16V bulk electrolytic RTrim CO1 1x47F/6.3V ceramic capacitor (e.g. TDK C Series, Murata GRM32ER60J476ME20) CTune 3900pF ceramic capacitor (can be 1206, 0805 or 0603 size) RTune 180 ohms SMT resistor (can be 1206, 0805 or 0603 size) RTrim 5k SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%) June 18, 2014 CO1 (c)2014 General Electric Company. All rights reserved. Page 17 GE G Data D Shee et NQR002A N A0X4: No on-Isolate ed DC-D DC Powerr Module es 3V Vdc -14Vdcc input; 0.6 6Vdc to 5.5Vdc output; 2A Outpu ut Current Mechanica M l Outline Dimensions D are e in millimeterss and (inches). Tolerances: T x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless oth herwise indicatted] m (x.xxx in 0 0.010 in.) x.xxx mm 0.25 mm Jun ne 18, 2014 (c) (c)2014 General Electric Companyy. All rights reservved. Pagee 18 GE G Data D Shee et NQR002A N A0X4: No on-Isolate ed DC-D DC Powerr Module es 3V Vdc -14Vdcc input; 0.6 6Vdc to 5.5Vdc output; 2A Outpu ut Current Recommen R nded Pad La ayout Dimensions D are e in millimeterss and (inches). Tolerances: T x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless oth herwise indicatted] m (x.xxx in 0 0.010 in.) x.xxx mm 0.25 mm June 18, 2014 (c) (c)2014 General Electric Companyy. All rights reservved. Pagee 19 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc -14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Ordering Information Please contact your Lineage Power Sales Representative for pricing, availability and optional features. Table 4. Device Codes Device Code Input Voltage Range Output Voltage Output Current On/Off Logic Connector Type Comcodes NQR002A0X4Z 3 - 14Vdc 0.6 - 5.5Vdc 2A Positive SIP CC109171468 -Z refers to RoHS compliant parts 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 India: +91.80.28411633 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 18, 2014 (c)2014 General Electric Company. All International rights reserved. Version 1.0