Product Highlights
The MI-J00 family of miniaturized DC-DC converters is designed for military applications utilizing distributed power architectures. Based on Vicor’s 1st Generation family of zero-current/zero-voltage switching, component-level, DC-DC converters, the MI-J00 family offers state-of-the-art performance in terms of power density, efficiency, noise, ease of use, and reliability.
The MI-J00 family is designed to exceed all steady-state, transient and under/overvoltage requirements of MIL-STD-704D/E for both 28Vdc input (MI-J20) and 270Vdc input (MI-J60), and the worst case envelope of DOD-STD- 1399A for 155Vdc input.
The output voltage can be externally trimmed or programmed from 50% to 110% of nominal output. Current limiting, remote sense, and an inhibit pin all combine to offer a high degree of protection, versatility, and reliability for military power systems.
All units are manufactured
in ISO 9001-registered facilities. Full epoxy encapsulation in Vicor’s industry standard package enables the MI-J00 family units to meet MIL-STD-810 environmental testing requirements for humidity, fungus, salt fog, explosive atmosphere, acceleration, vibration, and shock. (See page 32.)
MI-J00TM
Military DC-DC Converters 10 to 50W
Features
Inputs: |
Up to 90% efficiency |
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28Vdc per MIL-STD-704D/E |
Remote sense |
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155Vdc per MIL-STD-1399A |
Current limit |
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270Vdc per MIL-STD-704D/E |
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ZVS/ZCS power architecture |
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Single output: 2 – 48Vdc |
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Low noise FM control |
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Up to 23W/in3 |
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Size: 2.28" x 2.4" x 0.5" |
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MIL-STD-810 environments |
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(57,9 x 61,0 x 12,7mm) |
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Converter Specifications
(At TBP = 25°C, nominal line and 75% load, unless otherwise specified)
PARAMETER |
MIN |
TYP |
MAX |
UNITS |
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TEST CONDITIONS |
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Input Characteristics |
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Input voltage range |
See input voltage chart |
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No load power dissipation |
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1.35 |
2.0 |
Watts |
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Output Characteristics |
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Set point accuracy |
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0.5 |
1.0 |
% Vnom |
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Load/line regulation |
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0.05 |
0.2 |
% Vnom |
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LL to HL, 10% to FL |
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0.2 |
0.5 |
% Vnom |
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LL to HL, NL to 10% |
Output temperature drift |
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0.01 |
0.02 |
%/°C |
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Output noise - pp |
|
1.0 |
1.5 |
% Vnom |
} |
Whichever is greater |
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100 |
150 |
mV |
20MHz BW |
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Output voltage trimming(1) |
50 |
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110 |
% Vnom |
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Remote sense compensation |
0.5 |
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Vdc |
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OVP set point |
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N/A |
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Current limit |
105 |
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125 |
% Inom |
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Auto restart |
Short circuit current |
105 |
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130 |
% Inom |
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Control Pin Characteristics |
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Gate-in high threshold |
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6 |
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Vdc |
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Gate-in low threshold |
0.65 |
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Vdc |
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Gate-in low current |
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6 |
mA |
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Isolation Characteristics |
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Isolation (input to output) |
3,000 |
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Vrms |
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Isolation (output to baseplate) |
500 |
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Vrms |
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Isolation (input to baseplate) |
1,500 |
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Vrms |
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Input/output capacitance |
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50 |
75 |
pF |
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Environmental (MIL-STD-810) |
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Altitude - method 500.2 |
70,000 |
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feet |
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Procedure II |
Humidity - method 507.2 |
86/240 |
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%/hours |
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Procedure 1, cycle 1 |
Acceleration - method 513.3 |
9 |
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g's |
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Procedure 2 |
Vibration - method 514.3 |
20 |
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g's |
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Procedure 1, category 6 |
Shock - method 516.3 |
40 |
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g's |
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Procedure 1 |
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Reliability (MIL-HDBK-217F) |
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25°C Ground Benign: G.B. |
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2,871,050 |
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hours |
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50°C Naval Sheltered: N.S. |
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667,568 |
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hours |
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65°C Airborne Inhabited Cargo: A.I.C. |
559,855 |
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hours |
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Thermal Characteristics |
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Efficiency |
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80-90 |
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% |
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Baseplate to sink |
|
0.14 |
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°C/W |
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With thermal pads |
Thermal shutdown |
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N/A |
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Baseplate operating temperature |
|
+100 |
°C |
|
See product grade |
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Storage temperature |
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+125 |
°C |
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See product grade |
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Mechanical Specifications |
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Weight |
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3.0 (85) |
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ounces (grams) |
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(1) 10V, 12V, and 15V outputs, standard trim range ±10%. Consult factory for wider trim range.
MI-J00 10/02 1 of 2