TOTAL POWER INT'L MDW1000 Series 2 Watts 2 :1 Wide Input Range DC/DC Converters Single and Dual Outputs Key Features y y y y y y y y y High Efficiency up to 80% 2:1 Input Range I/O Isolation 1500VDC Industry Standard Pinout SMT Technology Short Circuit Protection MTBF > 1,000,000 Hours Low Ripple and Noise EMI Complies With EN55022 Class A MDW1000-Series power modules are low-profile dc-dc converters that operate over input voltage ranges of 4.5-9VDC, 9-18VDC, 18-36VDC and 36-72VDC and provide precisely regulated output voltages of 3.3V, 5V, 12V, 15V, {5V, {12V and {15V. $ Low Noise The -40 ]+65 ] operating temperature range makes it ideal for data communication equipments, mobile battery driven equipments, distributed power systems, telecommunication equipments, mixed analog/digital subsystems, process/machine control equipments, computer peripheral systems and industrial robot systems. Low Cost 1500 VDC The modules have a maximum power rating of 2 and a typical full-load efficiency of 80 ] , continuous short circuit, 60mV output ripple, built-in filtering for both input and output minimizes the need for external filtering. I/O Isolation EMI EN55022 2:1 Low Profile Wide Range Block Diagram Single Output +Vin Dual Output +Vo LC Filter +Vin +Vo LC Filter Com. -Vo -Vin PFM Isolation Ref.Amp -Vo -Vin PFM Isolation Ref.Amp MDW1000 Series Model Selection Guide Model Number MDW1011 MDW1012 MDW1013 MDW1014 MDW1015 MDW1016 MDW1017 MDW1021 MDW1022 MDW1023 MDW1024 MDW1025 MDW1026 MDW1027 MDW1031 MDW1032 MDW1033 MDW1034 MDW1035 MDW1036 MDW1037 MDW1041 MDW1042 MDW1043 MDW1044 MDW1045 MDW1046 MDW1047 Input Voltage Output Voltage VDC VDC Max. mA Min. mA @Max. Load mA (Typ.) 3.3 5 12 15 {5 {12 {15 3.3 5 12 15 {5 {12 {15 3.3 5 12 15 {5 {12 {15 3.3 5 12 15 {5 {12 {15 500 400 167 134 {200 {83 {67 500 400 167 134 {200 {83 {67 500 400 167 134 {200 {83 {67 500 400 167 134 {200 {83 {67 125 100 42 33 {50 {21 {17 125 100 42 33 {50 {21 {17 125 100 42 33 {50 {21 {17 125 100 42 33 {50 {21 {17 471 548 534 582 667 615 598 184 217 209 220 242 224 226 96 109 109 108 119 112 110 49 57 53 55 62 57 57 5 ( 4.5 ~ 9 ) 12 ( 9 ~ 18 ) 24 ( 18 ~ 36 ) 48 ( 36 ~ 72 ) Output Current Input Current Absolute Maximum Ratings mA (Typ.) 40 100 20 25 10 15 8 10 Efficiency @Max. Load % (Typ.) 70 73 75 73 64 69 71 73 77 80 80 73 78 78 72 77 80 81 74 78 80 71 73 79 79 71 77 77 Note : Parameter 5VDC Input Models 12VDC Input Models Input Surge Voltage ( 1000 mS ) 24VDC Input Models 48VDC Input Models Lead Temperature (1.5mm from case for 10 Sec.) Internal Power Dissipation Min. -0.7 -0.7 -0.7 -0.7 ----- Max. 11 25 50 100 260 1,800 Unit VDC VDC VDC VDC ] mW Exceeding these values can damage the module. These are not continuous operating ratings. 1. Specifications typical at Ta=+25], resistive load, nominal input voltage, rated output current unless otherwise noted. 2. Transient recovery time is measured to within 1% error band for a step change in output load of 50% to 100%. 3. Ripple & Noise measurement bandwidth is 0-20 MHz. 4. These power converters require a minimum output loading to maintain specified regulation. 5. Operation under no-load conditions will not damage these devices; however they may not meet all listed specifications. Environmental Specifications Parameter Operating Temperature Operating Temperature Storage Temperature Humidity Cooling @No Load mA (Typ.) Reflected Ripple Current Conditions Ambient Case Min. Max. -40 +65 -40 +90 -40 +125 --95 Free-Air Convection Unit ] ] ] % 6. All DC/DC converters should be externally fused on the front end for protection. 7. Other input and output voltage may be available, please contact factory. 8. Specifications subject to change without notice. MDW1000 Series Input Specifications Parameter Start Voltage Under Voltage Shortdown Model Min. Typ. Max. 4.5 5V Input Models 3.5 4 12V Input Models 4.5 7 9 24V Input Models 8 12 18 48V Input Models 16 24 36 5V Input Models --- 3.5 4 12V Input Models --- 6.5 8.5 24V Input Models --- 11 17 48V Input Models --- 22 34 --- --- 1 A --- --- 1500 mW Unit Reverse Polarity Input Current All Models Short Circuit Input Power Unit Input Filter VDC Pi Filter Output Specifications Parameter Conditions Min. Typ. Max. --- {1.0 {2.0 % Dual Output Balance Load --- {1.0 {2.0 % Line Regulation Vin=Min. to Max. --- {0.3 {0.5 % Load Regulation Io=25% to 100% --- {0.5 {0.75 % --- 30 50 mV P-P Over Line,Load & Temp --- --- 75 mV P-P Ripple & Noise (20MHz) --- --- 15 mV rms. Over Power Protection 120 --- --- % Transient Recovery Time --- 100 300 uS Output Voltage Accuracy Output Voltage Balance Ripple & Noise (20MHz) Ripple & Noise (20MHz) 25% Load Step Change Transient Response Deviation Temperature Coefficient Output Short Circuit --- {3 {5 % --- {0.01 {0.02 %/] Continuous General Specifications Parameter Isolation Voltage Isolation Test Voltage Conditions Min. Typ. Max. Unit 60 Seconds 1500 --- --- VDC Flash Tested for 1 Second 1650 --- --- VDC Isolation Resistance 500VDC 1000 --- --- M[ Isolation Capacitance 100KHz,1V --- 250 420 pF --- 300 --- KHz 1000 --- --- K Hours Switching Frequency MTBF MIL-HDBK-217F @ 25], Ground Benign Capacitive Load Models by Vout 3.3V 5V 12V 15V {5V # {12V # {15V # Unit Maximum Capacitive Load 2200 1000 170 110 470 100 47 uF Note: # For each output . MDW1000 Series Input Fuse Selection Guide 5V Input Models 12V Input Models 24V Input Models 48V Input Models 1000mA Slow - Blow Type 500mA Slow - Blow Type 250mA Slow - Blow Type 120mA Slow - Blow Type Input Voltage Transient Rating 150 140 130 120 48VDC Input Models 110 Vin ( VDC ) 100 90 80 70 24VDC Input Models 60 50 40 12VDC Input Models 30 20 5VDC Input Models 10 0 10uS 100uS 1mS 10mS 100mS 100 100 90 90 80 80 Efficiency (%) Efficiency (%) MDW1000 Series 70 60 50 40 70 60 50 Low Nom High 40 Low Input Voltage (V) High Efficiency vs Input Voltage ( Dual Output ) 90 90 80 80 70 70 Efficiency (%) Efficiency(%) Efficiency vs Input Voltage ( Single Output ) 60 50 60 50 40 40 30 30 10 60 40 20 80 100 Load Current (%) Efficiency vs Output Load ( Single Output ) 80 60 100LFM 400LFM Natural convection 200LFM 40 20 0 -40 50 60 70 90 80 Ambient Temperature Derating Curve ] 100 10 20 40 60 80 Load Current (%) Efficiency vs Output Load ( Dual Output ) 100 Output Power (%) Nom Input Voltage (V) 110 100 MDW1000 Series Test Configurations Overcurrent Protection Input Reflected-Ripple Current Test Setup To provide protection in a fault (output overload) condition, the unit is equipped with internal current limiting circuitry and can endure current limiting for an unlimited duration. At the point of current-limit inception, the unit shifts from voltage control to current control. The unit operates normally once the output current is brought back into its specified range. To Oscilloscope + + Battery +Vin Lin DC / DC Converter Current Probe Cin +Out -Vin Load Input Source Impedance -Out Input reflected-ripple current is measured with a inductor Lin (4.7uH) and Cin (220uF, ESR < 1.0[ at 100 kHz) to simulated source impedance. Capacitor Cin, offsets possible battery impedance. Current ripple is measured at the input terminals of the module, measurement bandwidth is 0-500KHz. Peak-to-Peak Output Noise Measurement Test Use a Cout 0.47uF ceramic capacitor. Scope measurement should be made by using a BNC socket, measurement bandwidth is 0-20 MHz. Position the load between 50 mm and 75 mm from the DC/DC Converter. The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of the power module. In applications where power is supplied over long lines and output loading is high, it may be necessary to use a capacitor on the input to insure startup. By using a good quality low Equivalent Series Resistance (ESR < 1.0[ at 100 kHz) capacitor of a 8.2uF for the 5V input devices, a 3.3uF for the 12V input devices and a 1.5uF for the 24V and 48V devices, capacitor mounted close to the power module helps ensure stability of the unit. + +Vin +Out Single Output DC / DC Converter -Vin Copper Strip Cout DC Power Source Resistive Scope Load +Vin + +Out DC / DC Converter Load Cin - -Vin -Out -Out Output Ripple Reduction +Vin +Out Dual Output DC / DC Converter Com. -Vin -Out Copper Strip Cout Scope Cout Scope Resistive Load A good quality low ESR capacitor placed as close as practicable across the load will give the best ripple and noise performance. To reduce output ripple, it is recommended that 3.3uF capacitors are used on output. + Design & Feature Considerations Maximum Capacitive Load The MDW1000 series has limitation of maximum connected capacitance on the output. The power module may operate in current limiting mode during start-up, affecting the ramp-up and the startup time. For optimum performance we recommend maximum 1000uF capacitive load for dual outputs and 4000uF capacitive load for single outputs. Connect capacitors at the point of load for best performance. The maximum capacitance can be found in the data. +Vin +Out Single Output DC / DC Converter DC Power Source Cout - -Vin -Out + +Vin +Out Dual Output DC / DC Com. Converter DC Power Source - -Vin -Out Load Cout Load MDW1000 Series Thermal Considerations Many conditions affect the thermal performance of the power module, such as orientation, airflow over the module, and board spacing. To avoid exceeding the maximum temperature rating of the components inside the power module, the case temperature must be kept below 90C. The derating curves were determined from measurements obtained in an experimental apparatus. Position of air velocity probe and thermocouple 15mm / 0.6in 50mm / 2in Air Flow DUT MDW1000 Series Mechanical Data Connecting Pin Patterns Top View ( 2.54 mm / 0.1 inch grids ) Single Output Side 7.62[0.3] 0.5[0.02] 23.8[0.94] 3.8[0.15] 0.5[0.02] 7 8 10 9 10.16[0.4] 1 Bottom 16 Tolerance Pin Millimeters Inches .X{0.25 .XX{0.01 .XX{0.25 {0.05 .XXX{0.01 {0.002 Pin Connections Dual Output 13.7[0.54] 2.54[0.1] Physical Characteristics Pin Single Output Dual Output 1 -Vin -Vin 7 NC NC 8 NC Common 9 +Vout +Vout 10 -Vout -Vout 16 +Vin +Vin 23.8*13.7*7.62 mm Case Size : Case Material : Non-Conductive Black Plastic Weight : 5.1g Flammability : UL94V-0 0.94*0.54*0.3inches NC:No Connection. Units are encapsulated in a low thermal resistance molding compound which has excellent chemical resistance and electrical properties in high humidity environments and over a wide operating temperature range. The encapsulant and outer shell of the unit have UL94V-0 ratings. Lead is solder plated surface to allow ease of solderability.