Product Highlights
The MI-ComPAC is a complete
single, dual, or triple output
DC-DC power supply that delivers
up to 300W from inputs of 28Vdc
or 270Vdc.
The MI-ComPAC meets the
conducted emissions and conducted
susceptibility specifications of
MIL-STD-461C/D/E and offers
complete input transient, surge, and
spike protection to the most severe
levels of MIL-STD-1275A, 704A.
Reverse polarity protection and
over/undervoltage lockout provide
additional safeguards against
potentially damaging line
conditions. The MI-ComPAC also
features a master disable.
Inputs:
28Vdc per MIL-STD-704A,MIL-STD-1275A
270Vdc per MIL-STD-704D /E
Outputs: 1 to 3,2 to 48Vdc
Up to 5W/in3
MIL-STD-461C/D/E EMI compliance
High efficiency
Remote sense
ZVS/ZCS power architecture
Low noise FM control
Rever se polar ity protection
Size — 1-up: 8.6" x 2.5" x 0.99"
(219,2 x 64,5 x 25,1mm)
Size — 2-up: 8.6" x 4.9" x 0.99"
(219,2 x 126,0 x 25,1mm)
Size — 3-up: 8.6" x 7.3" x 0.99"
(219,2 x 187,45 x 25,1mm)
Output Power/Current
≥5V <5V
S = 300W —
P = — 90A
Output Power/Current
≥5V <5V
V = 150W 30A
U = 200W —
S = — 60A
Output Power/Current
≥5V <5V
Y = 50W 10A
X = 75W 15A
W = 100W 20A
V = — 30A
Product Grade
I = –40°C to +85°C
M = –55°C to +85°C
Input Voltage
Nominal Range
2=28Vdc 18 – 50V
6=270Vdc 125 – 400V(1)
Number of
Single Output Modules
MI-LC – 50 – 100W 8.6" x 2.5" x 0.99" 1
MI-MC – 150 – 200W 8.6" x 4.9" x 0.99" 2
MI-NC – 300W 8.6" x 7.3" x 0.99" 3
Dual Output
MI-PC – 100 – 200W 8.6" x 4.9" x 0.99" 2
MI-QC – 200 – 300W 8.6" x 7.3" x 0.99" 3
Triple Output
MI-RC – 150 – 300W 8.6" x 7.3" x 0.99" 3
MI-ComPACTM
Military DC-DC Power Supplies
(1) These units rated at 75% load from 125-150Vin: 5Vout @ 100W; 2Vout and 3.3Vout @ 30A.
Features
Configuration Char t
Output Voltage
Z = 2V T = 6.5V N = 18.5V
Y = 3.3V R = 7.5V 3 = 24V
0 = 5V M= 10V L = 28V
X = 5.2V 1 = 12V J = 36V
W= 5.5V P = 13.8V K = 40V
V = 5.8V 2 = 15V 4 = 48V
Conduction Cooled Models Available Add "-CC" to the end of the part number.
(Consult factory for details.)
MI-ComPAC 11/02 1 of 4
Specifications
(At TBP = 25°C, nominal line and 75% load, unless otherwise specified)
Specifications
PARAMETER MIN TYP MAX UNITS NOTES
Input Characteristics
28Vdc input modules
Steady state input 18 28 50 Vdc
Low line lockout 16 Vdc Automatic recovery
Input spike limit -600 +600 Vdc 20µs, 50Ωper MIL-STD-704A
-250 +250 Vdc 100µs, 15mJ per MIL-STD-1275A
Input surge limit 100 Vdc 60mS ,0.5Ωper MIL-STD-1275A
Overvoltage shutdown 50 Vdc 100mS automatic recover y
Rever se polar ity protection Shunt diode: input fuse required
Recommended fuse 10(1) Amps F03A type
270Vdc input modules
Steady state input 125 270 400 Vdc
Low line lockout 125 Vdc Automatic recovery
Input spike limit +800 Vdc 20µs, 50Ω
-600 +600 Vdc 100µs, 15mJ
Input surge limit 500 Vdc 100ms ,0.5Ω
Overvoltage shutdown 400 Vdc 100µs automatic recover y
Rever se polar ity protection Shunt diode: input fuse required
Recommended fuse 2(1) Amps F03A type
All models
No load power dissipation 1.5(1) 2(1) Watts
Master disable input current(2) 4 mA Sink; disa bles all outputs
(Absolute max.,20mA)
Inrush current 110 125 %, Iin Steady state Iin, 10ms
EMC Characteristics; MIL-STD-461C/D/E
Input power leads
Conducted emissions CE01,CE03, CE07 MIL-STD-461C — 1-up
CE101,CE102 MIL-STD-461D — 1-up
CE101 MIL-STD-461E — 2-up & 3-up
Conducted susceptibility CS01,CS02,CS06 MIL-STD-461C — 1-up
CS101,CS114, CS116 MIL-STD-461D — 1-up
CS101,CS114, CS116 MIL-STD-461E — 2-up & 3-up
Output Characteristics
Setpoint accuracy 0.5 1.0 % Vnom
Load/line regulation 0.2 0.5 % Vnom LL to HL,NL to 10%
0.05 0.2 % Vnom LL to HL,10% to FL
Output temperature drift 0.01 0.02 %/°C
Output noise – p-p 1.0 1.5 % Vnom Whichever is greater
100 150 mV 20MHz BW
Output voltage trimming(3) 50 110 % Vnom
Remote sense compensation 0.5 Vdc
OVP setpoint 115 125 135 % Vnom Latching
Current limit 105 125 % Inom Auto restart
Short circuit current(4) 20 130 % Inom
Isolation Characteristics
Input to output 4,242 Vrms 1 min.
Input to case
28Vdc input 2,121 Vrms 1 min.
270Vdc input 2,500 Vrms 1 min.
Output to case 500 Vrms 1 min.
Thermal Character istics
Efficiency 81 %
Operating temperature, case +85 ˚C See product grade
Storage temperature +100 ˚C See product grade
Shutdown temperature +90 +95 +105 ˚C Cool and recycle power to restart
Mechanical Specifications
Weight
1-up 1.2 (544) pounds (grams)
2-up 2.4 (1248) pounds (grams)
3-up 3.6 (1633) pounds (grams)
Connector screw torque 3.5 (0.4) inches-pounds (N-M)
}
(1) Per internal module configuration.
(2) Multiply minimum x 2 for 2-ups and x 3 for 3-ups.
(3) 10V, 12V, and 15V outputs, s tandard trim range ±10%. Consult factor y for wider trim range.
(4) Output ranges of 5V or less incorporate foldback current limiting, outputs of 10V and
above incor porate straight line current limiting.
MI-ComPAC 11/02 2 of 4
Long Ter m Safe Operating Area Cur ves*
Disable Circuit
Ther mal Considerations
20 mA Max.
Disable
DIS+
DIS–
+
V
VOLTS-PEAK VALUE OF SPIKE VOLTAGE
TIME (SECONDS)
1s0
10
100ms
-1
10
10ms
-2
10
1ms
-3
10
100µs
-4
10
10µs
-5
10
1µs
-6
10
-600
-500
-400
-300
-200
-100
0
100
200
300
400
500
600
Ratings Exceeded
Reverse Polarity
Protection
50V
OVP
VOLTS-PEAK VALUE OF SPIKE VOLTAGE
TIME (SECONDS)
1s0
10
100ms
-1
10
10ms
-2
10
1ms
-3
10
100µs
-4
10
10µs
-5
10
1µs
-6
10
600
400
200
0
200
400
600
800 Ratings Exceeded
Reverse Polarity
Protection
500V
OVP 400V
28Vdc Input 270Vdc Input
* 1% duty cycle max., for shor t duration transient ca pability refer to specifications
• Ther mal impedance,chassis-to-air,is provided for 1-up,2-up and 3-up MI-ComPAC
package configurations as a function of air flow.
• Case temperature = (total power dissipated x thermal impedance) + ambient temperature.
• Watts dissipated per output = (output power ÷ efficiency) – output power.
(1) To order optional heat sink add –H1 to par t number
Ther mal Impedance — Case-to-Air (°C/W)
Standard Units With Optional Heat Sink(1)
1-up 2-up 3-up 1-up 2-up 3-up
Free Air (Hor iz.) 3.6 1.7 1.4 2.1 1.3 1.0
Forced Convection Through Heat Sink Fins
50 LFM 2.7 1.4 1.3 1.5 1.1 0.9
100 LFM 2.3 1.3 1.1 1.2 0.9 0.7
250 LFM 1.6 1.0 0.8 0.7 0.5 0.4
500 LFM 1.2 0.7 0.6 0.4 0.3 0.3
750 LFM 0.9 0.5 0.5 0.3 0.2 0.2
1000 LFM 0.8 0.4 0.4 0.2 0.2 0.2
Disable Current
• 4mA DC minimum for 1-up ComPAC
• 8mA DC minimum for 2-up ComPAC
• 12mA DC minimum for 3-up ComPAC
The MI-ComPAC incorporates an optically isolated master disa ble input which will shut down the
MI-ComPAC when a current is driven through the disable terminals .
MI-ComPAC 11/02 3 of 4
12
ø0.150 ± 0.005 THRU 6 PLACES
(ø3,81 ± 0,13)
1
23
4
5
4.96
(126,0)
4.42
(112,3)
7.380
(187,45)
0.18
(4,6) 6.00
(152,4) 2.76
(70,1)
7.00
(177,8)
2.288
(58,12)
2.420
(61,47)
0.20
(5,1)
0.19
(4,8)
A
E
D
C
B
A
E
D
C
B
A
E
D
C
B
0.41 (10,41)
6.95 (176,53)
6.37 (161,80)
5.98 (151,89)
5.59 (141,99)
5.25 (133,35)
4.53 (115,06)
3.95 (100,33)
3.56 (90,42)
3.17 (80,52)
2.83 (71,88)
2.11 (53,59)
1.53 (38,86)
1.14 (28,96)
0.75 (19,05)
0
#10-32 STUD
2 PLACES #8-32 STUD
6 PLACES
0.25 TYP
D
C
B
A
E
D
C
B
A
A
E
D
C
B
E
#10-32 STUD
2 PLACES
#8-32 STUD
2 PLACES
OUTPUT 1 OUTPUT 2
OUTPUT 1
OUTPUT 1 OUTPUT 2 OUTPUT 3
0.41 (10,41)
2.11 (53,59)
1.53 (38,86)
1.14 (28,96)
0.75 (19,05)
12
ø0.150 ± 0.005 THRU 4 PLACES
(ø3,81 ± 0,13)
0
1
23
4
5
2.156
(54,76)
0.18
(4,6) 2.76
(70,1)
6.00
(152,4)
0.91
23,1)
2.54
(64,5)
0.20
(5,1)
0.19
(4,8)
0.20
(5,1) E
D
C
B
A
0.25 TYP
#8-32 STUD
2 PLACES
OUTPUT 1
(
0.41 (10,41)
4.53 (115,06)
3.95 (100,33)
3.56 (90,42)
3.17 (80,52)
2.83 (71,88)
2.11 (53,59)
1.53 (38,86)
1.14 (28,96)
0.75 (19,05)
12
ø0.150 ± 0.005 THRU 5 PLACES
(ø3,81 ± 0,13) #10-32 STUD
2 PLACES
1
2
3
4
5
3.58
(90,9)
3.04
(77,2)
4.96
(126,0) 4.562
(115,87)
0.18
(4,6) 6.00
(152,4) 2.76
(70,1)
2.281
(57,94)
0.20
(5,1)
0.19
(4,8)
#8-32 STUD
4 PLACES
A
E
D
C
B
A
E
D
C
B
4.
0
0.25 TYP
A
E
D
C
B
OUTPUT 1 OUTPUT 2
OUTPUT 1
OPTIONAL HEATSINK (H1)
STANDARD UNITS
1.12
(28,4)
1.37
(34,80)
0.99
(25,15) 0.5
(12,57)
0.41
(10,4)
9.25±.120
(235,0 ±3,05)
8.63±.025
(219,2±,64)
0.5
(12,57)
Measure case temperature on this surface.
Mechanical Drawing
Inputs Outputs
MI-MC MI-PC
MI-NC MI-QC MI-RC
Inputs
1 –Ground 4 Disable–
2 –Input 5 Disable+
3 +Input
Outputs
Output #1 Output #2 Output #3
A +Output A +Output A +Output
B +Sense B +Sense B +Sense
CTrim CTrim CTrim
D –Sense D –Sense D –Sense
E –Output E –Output E –Output
1-Up
2-Up
3-Up
MI-LC
MI-ComPAC 11/02 4 of 4
