Single Output 270V–12V 720W
DC-DC Full Brick Converter
SINGLE OUTPUT 270V–12V 720W DC-DC FULL BRICK CONVERTER
Features:
Output Voltage: 10-14 VDC, 12VDC Nominal
Output Current: 60 Amps Maximum
Efficiency: 87.5%
Power Density: 130 W/in3
Weight: 8.5 ounces
Parallel Capability
Conduction cooling through baseplate
Full Output Power from -35ºC to 70ºC
Baseplate Temp
Storage Temp: -40ºC to +125ºC
500KHz Fixed Switching Frequency
De-rating per NAVSO P-3641A
The Lockheed Martin Full Brick Power Supply is an isolated, fixed frequency DC to DC
converter that uses the phase shifted full bridge topology achieving low noise, high efficiency,
high reliability and high density. This module is ideally suited to support low noise sensor,
digital processing or motor drive applications where size, weight and power (SWaP) is at a
premium. The module contains all necessary input and output filtering and requires no external
components to meet full performance.
Protection Features:
Constant Current Protection
Over Voltage Protection (OVP)
Over Temperature Protection
Indefinite Operation into Dead Short
Control Features:
On / Off Control (fully opto-isolated)
Remote Sense
Output Voltage Trim (+/- 10%)
Mechanical Features:
Industry standard size: 4.6” x 2.4” x 0.5”
Industry standard full brick pin-out configuration
Shielded Case (five sided nickel plated)
Shock (non-operating). Per MIL-STD-202G,
Method 213B, half sine waveform, +/-X axis
30g's 12.5 msec, +/- Y Axis 70g's 11msec, +/-Z
axis 40g's 20msec.
Vibration (x,y,z). Random (Non-Operating); 20
- 2000 Hz, 6.06 Grms, Sine; 4 - 33 Hz, 0.04 in.
Double Amplitude, 2 hours
Copyright © 2011 by Lockheed Martin Corporation.
All rights reserved. PIRA Number MOR201110001
Reliability:
MTBF:
− 550K hours @ 25OC baseplate
− 175K hours @ 70OC baseplate
Maintainability:
Potted with a silicone based potting material
and therefore maintenance free.
Tolerance analyses performed account for
component variations at end of life and,
therefore, periodic maintenance is also not
required.
Can be connectorized, so a failed embedded
Brick can be easily replaced within a
subsystem or line replaceable module.
Exportability:
EAR-99
Single Output 270V–12V 720W
DC-DC Full Brick Converter
270V - 12V Specifications
Part Number
Specifications
Nominal Output Voltage
Output Current Max.
Output Power Max.
Efficiency (Typ.) at 270VDC
Power Density
Input Voltage Range (Meet Regulation)
Input Surge Voltage Withstand
Output Voltage Accuracy
Output Voltage Adjustment
Ripple and Noise
Line Regulation
Load Regulation
Overcurrent Protection
Overvoltage Protection
Baseplate Operating Temperature
Storage Temperature
Humidity (non-condensing)
Isolation Voltage Input to Chassis
Isolation Voltage Input to Output
Isolation Voltage Output to Chassis
Weight
Size
Reliability (MTBF)
Copyright © 2011 by Lockheed Martin Corporation.
All rights reserved. PIRA Number MOR201110001
Units
VDC
A
W
%
W/in3
VDC
VDC
%
VDC
mV
%
%
ADC
VDC
oC
oC
%
VDC
VDC
VDC
Ounces
Inches
Hours
LM 20532441
Value
12
60
720
87.5
130
250 - 300
350 (MIL-STD-704 duration 0.020 sec)
± 3 max including line and load regulation
10 - 14
120 pk - pk max
± 0.4max
± 0.3 max
66 {Indefinite Duration}
17.5 ± 0.5 {Latching Shutdown}
-35 to +70
-40 to + 125
5 - 95 Relative Humidity
500
1000
100
8.5
2.4 x 4.6 x 0.5
550K @ 25oC baseplate
175K @ 70oC baseplate
