Product Highlights
The MI-Series is designed for military applications and is based on Vicor’s 1st Generation family of zero-current/zero-voltage switching, component level DC-DC converters. Operating at frequencies in excess of 1MHz, the MI-Series offers state-of-the-art performance in terms of power density, efficiency, noise, ease of use, and reliability.
All units are manufactured in ISO 9001-registered facilities. Full epoxy encapsulation in Vicor’s industry standard package enables the MI-Series to meet MIL-STD-810 environmental requirements for humidity, fungus, salt, fog, explosive atmosphere, acceleration, vibration, and shock. (See page 32.)
Standard features such as wide output trimming/programming, current limiting, remote sense, output inhibit, and latching OVP and OTP combine to offer a high degree of protection, versatility, and reliability for military power systems.
MI-200 10/02 1 of 2
MI-200TM
Military DC-DC Converters 50 to 100W
Features
Inputs: |
Current limit |
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28Vdc per MIL-STD-704D/E |
OVP and thermal shutdown |
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155Vdc per MIL-STD-1399A |
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Power boosters for |
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270Vdc per MIL-STD-704D/E |
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Single output: 2 – 48Vdc |
higher power outputs |
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Up to 23W/in3 |
ZVS/ZCS power architecture |
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MIL-STD-810 environments |
Low noise FM control |
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Up to 90% efficiency |
Size: 4.6" x 2.4" x 0.5" |
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Remote sense |
(116,8 x 61,0 x 12,7mm) |
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Converter/Booster 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 |
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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(2) |
115 |
125 |
135 |
% Vnom |
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Latching |
Current limit |
105 |
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125 |
% Inom |
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Auto restart |
Short circuit current(3) |
20 |
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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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Power sharing accuracy |
0.95 |
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1.05 |
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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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2,478,477 |
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hours |
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50°C Naval Sheltered: N.S. |
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584,920 |
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hours |
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65°C Airborne Inhabited Cargo: A.I.C. |
483,303 |
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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 |
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0.07 |
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°C/W |
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With thermal pads |
Thermal shutdown |
90 |
95 |
105 |
°C |
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Latching |
Baseplate operating temperature |
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+85 |
°C |
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See product grade |
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Storage temperature |
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+100 |
°C |
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See product grade |
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Mechanical Specifications |
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Weight |
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6.0 (170) |
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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.
(2)No over temperature or voltage protection in booster modules.
(3)Output voltages of 5V or less incorporate foldback current limiting; outputs of 10V and above provide constant current limiting.