SM Series. Full Featured DC / DC Converter 28 / 270 Vdc Input 200 Watt Single Output.

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1 SM Series Full Featured D / D onverter 28 / 270 Vdc Input 200 Watt Single Output FEATURES No Derating From -55 to +100 o Parallelable Operation Synchronization Fixed Frequency Power onversion MIL - STD Screening Available Meets MIL - Standards: MIL - STD P4855-1A MIL - STD - 704D MIL - STD - 810E MIL - S HOW TO ORDER SM 200 S / B (270) 883 Series Total Output Power Single Output Output Voltage Options MIL - STD Screening (optional) Options: A - pins out baseplate of unit B - relocating of mounting holes - thru hole inserts (0.140 DIA) I - metric inserts (M3) Standard unit is 28 Vdc nominal input with pins out the top written as /5.2 AESSORY PRODUTS SM1275: Input Transient Suppression Module (for 28 Vdc input only) for conformance to MIL - STD - 704A & MIL - STD SMF200: EMI Filter to meet MIL - STD SMR: SMRA: A Front End Rectifier (for 270 Vdc input). Ripple Attenuator Module to reduce ripple to < 20 mv P-P. SELETION HART Nominal Output(Vdc) Output urrent(amps) Model Number / / / / / / / / /48 >> 11

2 Specifications INPUT HARATERISTIS 28 VD INPUT INPUT HARATERISTIS 270 VD INPUT Brown Out () Full Load No Load Power Dissipation Inrush harge [fig VII] Reflected Ripple urrent Logic [fig VIII] Disable urrent (Sink) Logic Disable Power In Input Ripple Rejection (120Hz) Input Overvoltage (No Damage) up to EMI Input Transient Vdc 17 Vdc 3 6 Watt 2 mc 15 % ma W 60 db Vdc 83 % Units conform to MIL-STD-461 (on the input leads) with companion filter Units conform to MIL-STD-704D (50 Vdc for 0.1 second) Brown Out () Full Load No Load Power Dissipation Inrush harge [fig VII] Reflected Ripple urrent [fig VIII] Logic Disable urrent (Sink) Logic Disable Power In Input Ripple Rejection (120Hz) Input Overvoltage (No Damage) up to EMI Input Transient Vdc 175 Vdc Watt 1.5 mc 15 % 0.8 ma 3.0 W 60 db % Units conform to MIL-STD-461 (on the input leads) with companion filter Units conform to MIL-STD-704D ( for 0.1 second) OUTPUT HARATERISTIS Set Point Accuracy 1* %Vout Load Regulation %Vout Line Regulation %Vout Ripple P-P (25MHz) [fig IV] %Vout Trim Range (, 5.2V min=) %Vout Trim Range (2V, 3.3V) %Vout Remote Sense ompensation 0.5 Vdc Overvoltage Protection %Vout urrent Sharing ± 10 %Iout Transient Response (Vout 1%) Time / Overshoot [fig V & VI] 20 - Load Low Line - High Line % Temperature Drift %/ o Long Term Drift %/1KHrs urrent Limit %Iout Short ircuit urrent 150 %Iout Turn On Time [fig X] 100 ms Logic Turn On Time [fig IX] 100 ms Tracking Accuracy * 1% or 50mV, whichever is greater N / A ISOLATION HARATERISTIS Isolation: Input to Output (28 Vdc in) Input to Output(270 Vdc in) Output to Base/ase Input to Base/ase (28 Vdc in) Input to Base/ase (270 Vdc in) Input to Output apacitance Insulation Resistance (@ 50 Vdc) 1000 Vdc 1000 Vdc µf 50 MOhm MEHANIAL HARATERISTIS Weight 9.75 oz grams Size 2.4 x 4.6 x 0.5 inch 61 x 117 x 13 mm Volume 5.5 inch 3 93 cm 3 TEMPERATURE HARATERISTIS Operating (Baseplate) o Storage (Ambient) o Over Temperature Shutdown +105 o Thermal Resistance ase(ambient) 5 o /W MIL - STD SREENING (OPTIONAL) Stabilization Bake: +125 o for 24 hours per M1008.2, ondition B Temperature ycling: 10 cycles at -55 o to +125 o (transition period 36 minutes) per M1010, ondition B Burn-in: 160 hours at +100 o Final Testing >> 12

3 ase Drawings Standard Model Pin placement on top of unit. Model number written as / UN-2B THRU 4 PLAES INPUT PINS OUTPUT PINS TOP VIEW (MARKING SURFAE) BASEPLATE R DIA BASEPLATE A Option B Option Pin placement on baseplate of unit. Model number written as /5.2-A Relocating of mounting holes. Model number written as /5.2-B INPUT PINS OUTPUT PINS 6-32 UN-2B THRU 4 PLAES MARKING SURFAE MARKING SURFAE R DIA Option Thru hole inserts (0.140 DIA). Model number written as /5.2- Tolerances: Inches x.xx = ±0.03 x.xxx = ±0.015 mm x.xx = ±0.4 x.x = ±0.8 Material: Pin - Brass (Solder Plating), Baseplate - Aluminum 5052-H32, ase - Steel. Finish: Nickel Plating. Mounting: 6-32 THD inserts are provided in baseplate. Metric: M3 inserts. inch mm A B D E F G H J K L M N P R X Y Z >> 13

4 haracteristics 28 Vdc Input I. vs. Output Power II. vs. Output Power III. vs. Output Power 100% 60% 40% 20% 0% % 40% 60% 100% IV. Output Voltage Ripple V. Load Transient Response VI. Input Transient Response 20 mv/div 20 A/div 50 mv/div 20 V/div 50 mv/div Time: 2 μs/ div Time : 100 μs/ div Time : 100 μs/ div VII. Input Inrush urrent VIII. Input urrent Ripple IX. TTL Turn On 10 A/div 20 V/div 2 V/div 2 V/div 0.5 A/div Time: 20 μs/ div Time : 2 μs/ div Time : 5 μs/ div X. TTL Turn-off XI. Turn On XII. Turn Off / Hold-up Time 20V /div 2 V/div 20V /div 2 V/div 2 V/div 2 V/div Time: 200 μs/ div Time : 10 ms/ div Time : 200 μs/ div >> 14

5 haracteristics 270 Vdc Input I. vs. Output Power II. vs. Output Power III. vs. Output Power 100% 60% 40% 20% 28 0% % 40% 60% 100% IV. Output Voltage Ripple V. Load Transient Response IV. Input Transient Response 20 mv/div 20 A/div 50 mv/div 100 V/div 50 mv/div Time: 2 μs/ div Time : 100 μs/ div Time : 100 μs/ div VII. Input Inrush urrent VIII. Input urrent Ripple IX. TTL Turn On 20 A/div 100 V/div 2 V/div 2 V/div 0.5 A/div Time: 10 μs/ div Time : 2 μs/ div Time : 10 μs/ div X. TTL Turn-off XI. Turn On XII. Turn Off / Hold-up Time 200V /div 2 V/div 200 V/div 2 V/div 2 V/div 2 V/div Time: 200 μs/ div Time : 10 ms/ div Time : 200 μs/ div >> 15