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-J00
TM
Military DC-DC Converters 10 to 50W
Inputs:
28Vdc per MIL-STD-704D/E
155Vdc per MIL-STD-1399A
270Vdc per MIL-STD-704D/E
Single output: 2 – 48Vdc
Up to 23W/in
3
MIL-STD-810 environments
Up to 90% efficiency
Remote sense
Current limit
ZVS/ZCS power architecture
Low noise FM control
Size: 2.28" x 2.4" x 0.5"
(57,9 x 61,0 x 12,7mm)
PARAMETER MIN TYP MAX UNITS TEST CONDITIONS
Input Characteristics
Input voltage range See input voltage chart
No load power dissipation 1.35 2.0 Watts
Output Characteristics
Set point accuracy 0.5 1.0 % Vnom
Load/line regulation 0.05 0.2 % Vnom LL to HL, 10% to FL
0.2 0.5 % Vnom LL to HL, NL to 10%
Output temperature drift 0.01 0.02 %/°C
Output noise - pp 1.0 1.5 % Vnom Whichever is greater
100 150 mV 20MHz BW
Output voltage trimming
(1)
50 110 % Vnom
Remote sense compensation 0.5 Vdc
OVP set point N/A
Current limit 105 125 % Inom Auto restart
Short circuit current 105 130 % Inom
Control Pin Characteristics
Gate-in high threshold 6 Vdc
Gate-in low threshold 0.65 Vdc
Gate-in low current 6 mA
Isolation Characteristics
Isolation (input to output) 3,000 V
rms
Isolation (output to baseplate) 500 V
rms
Isolation (input to baseplate) 1,500 V
rms
Input/output capacitance 50 75 pF
Environmental (MIL-STD-810)
Altitude - method 500.2 70,000 feet Procedure II
Humidity - method 507.2 86/240 %/hours Procedure 1, cycle 1
Acceleration - method 513.3 9 g's Procedure 2
Vibration - method 514.3 20 g's Procedure 1, category 6
Shock - method 516.3 40 g's Procedure 1
Reliability (MIL-HDBK-217F)
25°C Ground Benign: G.B. 2,871,050 hours
50°C Naval Sheltered: N.S. 667,568 hours
65°C Airborne Inhabited Cargo: A.I.C. 559,855 hours
Thermal Characteristics
Efficiency 80-90 %
Baseplate to sink 0.14 °C/W With thermal pads
Thermal shutdown N/A
Baseplate operating temperature +100 °C See product grade
Storage temperature +125 °C See product grade
Mechanical Specifications
Weight 3.0 (85) ounces (grams)
Converter Specifications
(At T
BP
= 25°C, nominal line and 75% load, unless otherwise specified)
(1)
10V, 12V, and 15V outputs, standard trim range ±10%. Consult factory for wider trim range.
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Features
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