= 25°C, nominal line and 75% load, unless otherwise specified)
Parameter
28V
DC
modules
Steady state input
Input spike limit
Min
16
-600
-250
Typ
28
Max
50
600
250
100
80
20
100
-600
400
4
0.5
110
1.5
125
270
400
800
600
500
Units
V
DC
V
DC
V
DC
V
DC
V
DC
V
DC
Amps
V
DC
V
DC
V
DC
V
DC
V
DC
Amps
Watts
% I
IN
Notes
Product Highlights
The MI-IAM is an accessory product to Vicor’s
MI-Series of DC-DC converters that provides
EMI filtering and transient protection. Designed
for use with all 28V and 270V input MI-200
or MI-J00 converters, the MI-IAM can drive
any number of modules with output loads to
200W. See chapter 14 of the Deseign Guide
& Applications Manual for VI-200 and VI-J00
Family DC-DC Converters and configurable
Power Supplies for technical description.
The MI-IAM meets the conducted emissions
specifications of MIL-STD-461C/D/E
[1]
and
offers complete input transient, surge and
spike protection to the most severe levels of
MIL-STD-1275, MIL-STD-704 and DO-160.
Overvoltage lockout provides additional
safeguards against potentially damaging
line conditions. Higher power arrays can
be configured using the expansion port
capability of the MI-IAM.
Input surge limit
Overvoltage shut down
[b]
Recommended fuse
270V
DC
modules
Steady state input
Input spike limit
Input surge limit
Overvoltage shut down
[a]
Recommended fuse
All models
No load power dissipation
Inrush current
[a]
[b]
50
20µs, 50
Ω
per MIL-STD-704A
[a]
70µs, 15 mJ per MIL-STD-1275A/B/D
50ms, 0.5Ω per MIL-STD-1275A/B/D
100ms per DO-160E, Sec.16, Cat. Z
100ms, automatic recovery
F03A type
20µs, 50Ω
[a]
100µs, 50mJ
[a]
100ms, 0.5Ω
100ms, automatic recovery
F03A type
Steady state, l
IN
10ms
Guaranteed by design – no test data available.
The MI-IAM disables downstream converters and clamps the converter input voltage at a safe level.
Output Characteristics
Parameter
Clamp voltage
28V
DC
input
270V
DC
input
Output power
Internal voltage drop
28V
DC
270V
DC
Overload protection
28V
DC
input
270V
DC
input
Min
Typ
Max
60
420
250
0.6
0.85
20
4
Units
V
DC
V
DC
Watts
V
DC
V
DC
Amps
Amps
Foldback threshold; auto recovery
with latched shut down after 1ms
Test Conditions
Compatible Products
•
MI-200, MI-J00 (Inputs: 2 and 6)
•
MI-Mega Modules (Inputs: 2 and 6)
MI-IAM
Page 1 of 6
Rev 1.6
06/2017
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800 927.9474
MI-IAM™
Isolation Characteristics
Parameter
Input to base
Output to base
Min
Typ
1,500
1,500
Max
Units
V
RMS
V
RMS
Notes
1 minute
1 minute
EMI Characteristics MIL-STD-461
(1)
Parameter
Input power leads
Conducted emissions
Conducted susceptibility
[1]
Notes
CE01, CE03, CE07
CE101, CE102
CS01, CS02, CS06,
CS101, CS114, CS115, CS116
MIL-STD-461C
MIL-STD-461D/E
MIL-STD-461C
MIL-STD-461D/E
EMI performance is subject to a wide variety of external influences such as PCB construction, circuit layout etc.
As such, external components in addition to those listed herein may be required in specific instances to gain full compliance to the standards specified.
Model Selection Chart
Model Number
MI-A22-MU
MI-A66-MU
MI-A22-IU
MI-A66-IU
Nominal Input Voltage
28V
DC
270V
DC
28V
DC
270V
DC
Input Range
16 –
125 –
16 –
125 –
50V
DC
400V
DC
50V
DC
400V
DC
Compatible MI-Series
MI-22x-Mx and MI-J2x-Mx
MI-26x-Mx and MI-J6x-Mx
MI-22x-Ix and MI-J2x-Ix
MI-26x-Ix and MI-J6x-Ix
Converter
M–grade
M–grade
I–grade
I–grade
MI-IAM
Page 2 of 6
Rev 1.6
06/2017
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800 927.9474
MI-IAM™
Specifications
(Typical at T
BP
= 25°C, nominal line and 75% load, unless otherwise specified)
ENVIRONMENTAL – MIL-STD-810D
Parameter
Altitude - method 500.2
Humidity - method 507.2
Acceleration - method 513.3
Vibration - method 514.3
Shock - method 516.3
Min
70,000
88/ 240
9
20
40
Typ
Max
Units
feet
% /hours
g
g
g
Test Conditions
Procedure II
Procedure I, cycle 1
Procedure II
Procedure I, category 6
Procedure I
RELIABILITY – MIL-HDBK-217F (MI-A22-MU)
Parameter
25°C Ground Benign: G.B.
50°C Naval Sheltered: N.S.
65°C Airborne Inhabited
Cargo: A.I.C.
Min
Typ
5,637
1,014
795
Max
Units
1,000 hours
1,000 hours
1,000 hours
Test Conditions
THERMAL CHARACTERISTICS
Parameter
Efficiency
Baseplate to sink
Operating temperature,
baseplate
Storage temperature
Min
Typ
97
0.14
100
125
Max
Units
%
°C/Watt
°C
°C
See product grade specifications
See product grade specifications
Test Conditions
MECHANICAL SPECIFICATIONS
Parameter
Weight
Min
Typ
3.0 (85)
Max
Units
ounces (grams)
Test Conditions
PRODUCT GRADE SPECIFICATIONS
Parameter
Storage temperature
Operating temperature (baseplate)
Power cycling burn-in
Temperature cycled with power off
17°C per minute rate of change
Test data supplied at these temperatures
[a]
Warranty
Environmental compliance
Derating
[a]
I-Grade
-55°C to +125°C
-40°C to +100°C
12 hours, 29 cycles
12 cycles
-65°C to +100°C
-40°C, +80°C
2 years
MIL-STD-810
NAVMAT P-4855-1A
M-Grade
-65°C to +125°C
-55°C to +100°C
96 hours, 213 cycles
12 cycles
-65°C to +100°C
-55°C, +80°C
2 years
MIL-STD-810
NAVMAT P-4855-1A
Test data available for review or download from vicorpower.com
MI-IAM
Page 3 of 6
Rev 1.6
06/2017
vicorpower.com
800 927.9474
MI-IAM™
Specifications (Cont.)
ENVIRONMENTAL QUALIFICATIONS
Parameter
Altitude
Explosive Atmosphere
Qualification
MIL-STD-810D, Method 500.2, Procedure III, explosive decompression (40K ft.).
MIL-STD-810D, Method 500.2, Procedure II, 40,000ft., 1000 – 1500ft./ min. to 70,000ft., unit functioning
MIL-STD-810C, Method 511.1, Procedure I
MIL-STD-810D, Method 514.3, Procedure I, category 6, helicopter, 20g
MIL-STD-810D, Method 513.3, Procedure II Operational test, 9g for 1 minute along 3 mutually perpendicular axes
MIL-STD-810D, Method 507.2, Procedure I, cycle I, 240 hrs, 88% relative humidity
MIL-STD-202, Method 208, 8hr. aging
MIL-STD-810C, Method 508.1
MIL-STD-810C, Method 509.1
Safe Operating Area
[a]
MI-IAM Safe Operating Area, 28Vin
600
VOLTS-PEAK VALUE OF SPIKE VOLTAGE
500
400
300
200
100
0
-100
-200
-300
-400
-500
-600
10-6
10-5
10-4
10-3
1ms
TIME (SECONDS)
10-2
10ms
10-1
100ms
100
1s
OVP
28V
DC
Input
MI-IAM Safe Operating Area, 270Vin
270V
DC
Input
Ratings Exceeded
VOLTS-PEAK VALUE OF SPIKE VOLTAGE
800
600
400
200
0
200
400
600
Ratings Exceeded
500V
400V
50V
OVP
10-6
10-5
10-4
10-3
1ms
TIME (SECONDS)
10-2
10ms
10-1
100ms
100
1s
[a]
Refer to Input Characteristics
Typical Connection Diagram
4700pF
+In
+
–
+In
-In
-In
Gate In
Parallel
Gate Out
+OUT
C1
+IN
Gate IN
Gate OUT
-IN
MI-Converter
+IN
+IN
EMI Filter
–IN
–IN
V
REF
1
OV
Q1
U2
V
REF
2
OC
U1
D1
D2
+OUT
C2
GATE OUT
10V
PARALLEL
GATE IN
–OUT
-OUT
4700pF
Level
Shift
Q2
MI-IAM
Input Voltage Range Capacitance (C1)
28V
DC
(18.8-50V)
390 F (Max.)
270V
DC
(125-400V)
27 F (Max.)
MI-IAM
Page 4 of 6
Rev 1.6
06/2017
vicorpower.com
800 927.9474
MI-IAM™
Storage
Vicor products, when not installed in customer units, should be stored in ESD safe packaging in accordance with ANSI/ESD S20.20,
“Protection of Electrical and Electronic Parts, Assemblies and Equipment” and should be maintained in a temperature controlled factory/
warehouse environment not exposed to outside elements controlled between the temperature ranges of 15°C and 38°C. Humidity shall not
be condensing, no minimum humidity when stored in an ESD compliant package.
Mechanical Drawing
0.30±.015
(7,6)±(0,38)
0.49
(12,4)
2.28
(57,9)
0.65
(16,5)
1.30
(33,0)
Standard
0.080 Dia (2) places
Solder plate
over copper alloy
Pin #
1
2
3
4
5
6
7
8
9
Function
+IN
+IN
–IN
–IN
+OUT
Gate IN
Parallel
Gate OUT
–OUT
4
2.10
(53,4)
3
2
1
0.15
(3,8)
9
MI-IAM
MI-IAM
8
6
7
5
1.40
1.00 (35,6)
0.70 (25,4)
0.40 (17,8)
(10,2)
0.35± 0.015
(8,9)±(0,38)
FULL R
0.15
(3,8)
Standard
0.040 (1,0) Dia (7) places
Solder plate
over copper alloy
Product ID
this surface
0.22
(5,6) Min.
0.50
(12,7)
+0.030 (0,76)
-0.000 (0)
1.90
(48,3)
0.30
(7,6) Min.
1.75
(44,4) Max.
2.40
(61,0)
0.12
(3,0)
.01
Aluminum Base
Note:
For alternate packaging options refer to the mechanical drawing page of vicorpower.com
[1]
EMI performance is subject to a wide variety of external influences such as PCB construction, circuit layout etc. As such, external components in addition to
those listed herein may be required in specific instances to gain full compliance to the standards specified.
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