IRF AMR2805D/EM Hybrid - high reliability radiation tolerant dc/dc converter Datasheet

PD-94690B
AMR28XXD SERIES
28V Input, Dual Output
HYBRID - HIGH RELIABILITY
RADIATION TOLERANT
DC/DC CONVERTER
Description
The AMR28XXD series of DC/DC converter modules
has been specifically designed for operation in
moderate radiation environments supplementing the
higher radiation performance available in the
International Rectifier ART2815T converter series.
Environments presented to space vehicles operating
in low earth orbits, launch boosters, orbiting space
stations and similar applications requiring a low power,
high performance converter with moderate radiation
hardness performance will be optimally served by the
AMR28XXD series.
The physical configuration of the AMR28XXD series
permits mounting directly to a heat conduction surface
without the necessity of signal leads penetrating the
heat sink surface. This package configuration permits
greater independence in mounting and more mechanical
security than traditional packages. International
Rectifier’s rugged ceramic seal pins are used
exclusively in the package thereby assuring long term
hermeticity.
The AMR28XXD has been designed for high density
using chip and wire hybrid technology that complies
with class H requirement of MIL-PRF-38534.
Manufactured in a facility fully qualified to MIL-PRF38534, these converters are fabricated utilizing DSCC
qualified processes. For available screening options,
refer to device screening table in the data sheet.
Applicable generic lot qualification test data including
radiation performance can be made available on
request. Variations to the standard screening can be
accommodated. Consult IR Santa Clara for special
requirements.
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AMR
Features
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30 Watts Output Power
Available in ± 5, ±12 and ±15 Volt Outputs
16 - 40 VDC Input Range (28 VDC Nominal)
Total Ionizing Dose > 25KRads (Si)
2
SEE Hardened to LET up to 60 MeV.cm /mg
-55°C to +125°C Operating Range
Indefinite Short Circuit Protection
External Synchronization
Shutdown from External Signal
Flexible Mounting
Fully Isolated - Input to Output and to Case
Complimentary EMI Filter Available
Electrical Performance Similar to
ATR28XXD Series
1
09/15/08
AMR28XXD Series
Specifications
Absolute Maxim um Ratings
Input Voltage range
Recom mended Operating Conditions
-0.5V to +50VD C (Continuous), Input Voltage range
+16V to +40VD C
80V (100ms)
Output Power
Less than or equal to 30W
Soldering temperature
300°C for 10 seconds
Operating case temperature
-55°C to +125°C
Storage case temperature
-65°C to +135°C
Static Characteristics
-55°C ≤ TCASE ≤ +125°C, VIN=28 V DC ±5%, CL=0, unless otherwise specified.
Group A
Subgroups
Parameter
Test Conditions
Input Voltage
Iout=0
Output Voltage
Output Current
AMR2805D
AMR2812D
AMR2815D
1
1
1
AMR2805D
AMR2812D
AMR2815D
2, 3
2, 3
2, 3
AMR2805D
AMR2812D
AMR2815D
1, 2, 3
1, 2, 3
1, 2, 3
AMR2805D
AMR2812D
AMR2815D
1, 2, 3
1, 2, 3
1, 2, 3
1, 2
Nom
Max
Unit
16
28
40
V
±4.95 ±5.00 ±5.05
±11.88 ±12.00 ±12.12
±14.85 ±15.00 ±15.15
V
±4.90
±11.70
±14.70
±5.10
±12.30
±15.30
600
250
200
5400
2250
1800
mA
30
30
30
W
60
85
85
mVPP
Vin = 16, 28, 40 Volts
100% load
Output Power
Output Ripple Voltage
Min
3
AMR2805D
AMR2812D
AMR2815D
Output Voltage Regulation
1, 2, 3
1, 2, 3
1, 2, 3
Vin = 16, 28, 40 Volts
BW = 20 Hz to 2 MHz
4
Line
AMR2805D
AMR2812D
AMR2815D
1, 2, 3
1, 2, 3
1, 2, 3
Load
AMR2805D
AMR2812D
AMR2815D
1, 2, 3
1, 2, 3
1, 2, 3
Vin = 16, 28, 40 Volts
Iout = 0, 50%, and 100% load
±10
±30
±40
±30
±75
±75
±10
±50
±50
±50
±120
±150
mV
For Notes to Specifications, refer to page 5
2
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AMR28XXD Series
Static Characteristics (Continued) -55°C ≤ TCASE ≤ +125°C, VIN=28 VDC ±5%, CL=0,unless
otherwise pecified.
Group A
Parameter
Cross Regulation
Input Current
No Load
Inhibit
Input Ripple Current
Efficiency
Subgroups
5
Min
Nom
Max
Unit
10
5.0
5.0
%
10% TO 90% Load change
AMR2805D
AMR2812D
AMR2815D
1, 2, 3
1, 2, 3
1, 2, 3
AMR2805D
AMR2812D
AMR2815D
1, 2, 3
1, 2, 3
1, 2, 3
AMR2805D
AMR2812D
AMR2815D
1, 2, 3
1, 2, 3
1, 2, 3
3, 4
1, 2, 3
4
Iout=0, Inhibit =open
20
20
20
70
75
100
8.0
8.0
8.0
15
18
18
mA
Inhibit shorted to input return
Vin = 16, 28, 40 Volts, 100%
load, BW = 20 Hz to 2 MHz
50
mAPP
100% load
AMR2805D
AMR2812D
AMR2815D
1
1
1
76
80
79
AMR2805D
AMR2812D
AMR2815D
2, 3
2, 3
2, 3
72
75
74
Isolation
Capacitive Load
Test Conditions
6, 7
1
Input to output or any pin to
case (except case ground pin)
at 500Vdc
4
No effect on dc performance
100
Short Circuit Power Dissipation
1, 2, 3
Switching Frequency 4
4, 5, 6
100% load
500
Sync frequency range
4, 5, 6
100% load
500
MIL-HDBK-217F, SF@
Tc=35°C
800
MTBF
Weight
%
MΩ
550
200
µF
9.0
W
600
KHz
700
KHz
Khrs
68
g
For Notes to Specifications, refer to page 5
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3
AMR28XXD Series
Dynamic Characteristics
Parameter
Output Response To Step
4, 9
Transient Load Changes
AMR2805D
AMR2812D
AMR2815D
-55°C ≤ TCASE ≤ +125°C, VIN=28 V DC ±5%, CL=0, unless otherwise specified.
Group A
Subgroups
Test Conditions
Min
Nom
Max
Unit
4, 5, 6
4, 5, 6
4, 5, 6
AMR2805D
AMR2812D
AMR2815D
4, 5, 6
4, 5, 6
4, 5, 6
Recovery Time, Step Transient
4, 9, 10
Load Changes
AMR2805D
AMR2812D
AMR2815D
4, 5, 6
4, 5, 6
4, 5, 6
AMR2805D
AMR2812D
AMR2815D
4, 5, 6
4, 5, 6
4, 5, 6
AMR2805D
AMR2812D
AMR2815D
4, 5, 6
4, 5, 6
4, 5, 6
Output Response Transient Step
4, 7, 11
Line Changes
AMR2805D
AMR2812D
AMR2815D
4, 5, 6
4, 5, 6
4, 5, 6
Recovery Time Transient Step Line
4, 7, 10, 11
Changes
AMR2805D
AMR2812D
AMR2815D
4, 5, 6
4, 5, 6
4, 5, 6
Turn On Overshoot
Turn On Delay
Ù 100%
Load step 50%
Load step 0%
Ù 50%
-400
-400
-400
+400
+400
+400
-400
-800
-800
+400
+800
+800
Ù 100%
Load step 50%
Load step 0% => 50%
Load step 50% => 0%
Input step from/to 16 to 40Vdc,
100% load
Input step from/to 16 to 40Vdc,
100% load
-500
-1200
-1500
mV pk
70
70
70
µs
500
500
500
µs
5
5
5
ms
+500
+1200
+1500
mV pk
10
10
10
ms
450
600
750
mV pk
25
25
25
ms
25
25
25
ms
4
AMR2805D
AMR2812D
AMR2815D
4, 5, 6
4, 5, 6
4, 5, 6
0% load to 100% load
AMR2805D
AMR2812D
AMR2815D
4, 5, 6
4, 5, 6
4, 5, 6
0% load to 100% load
4, 12
Short Circuit Recovery
7
AMR2805D
AMR2812D
AMR2815D
4, 5, 6
4, 5, 6
4, 5, 6
For Notes to Specifications, refer to page 5
4
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AMR28XXD Series
Notes to Specifications
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Parameter guaranteed by line and load regulation tests.
Up to 90 percent of full power is available from either output provided the total output does not exceed 30 watts.
Bandwidth guaranteed by design, Tested for 20 Hz to 2 MHz.
Load current split equally between +VOUT and –VOUT.
3 watt load on output under test. 3 watt to 27 watt load change on other output.
Capacitive load may be any value from 0 to the maximum limit without compromising DC performance. A
capacitive load in excess of the maximum limit will not disturb loop stability but may interfere with the operation
of the load fault detection circuitry, appearing as a short circuit during turn-on.
Parameter shall be tested as part of design characterization and after design or process changes, Parameters
shall be guaranteed to the limit specified in Electrical Specifications.
Load step transition time between 2 and 10 microseconds.
Recovery time is measured from initiation of the transient to where Vout has returned to within ±1% of Vout at
50% load.
Input step transient time between 2 and 10 microseconds.
Turn-on delay time measurement is for either a step application of power at the input or the removal of a ground
signal from the inhibit pin while power is applied to the input.
Block Diagram
EMI
Filter
1
+Input
Under-Voltage
Detector
3
Enable
Primary
Housekeeping
Supply
8
+Output
7
Output
Return
6
-Output
5
Case
10
Sync
Input
Drive
Pulse Width
FB
Modulator
CS
Error
Amp &
Ref
Input
Return
2
Application Information
Inhibit Function (Enable)
Connecting the inhibit input to input common will
cause the converter to shut down. It is recommended
that the inhibit pin be driven by an open collector
device capable of sinking at least 400 µA of current.
The open circuit voltage of the inhibit input is 10 ±1.0 VDC.
EMI Filter
An optional EMI filter is available (AFH461) that will
reduce the input ripple current to levels below the
limits imposed by MIL-STD-461 CE03.
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Device Synchronization
When multiple DC/DC converters are utilized in a
single system, significant low frequency noise may
be generated due to a small difference in the
switching frequency of the converters (beat
frequency noise). Because of the low frequency
nature of this noise (typically less than 10 KHz), it is
difficult to filter out and may interfere with proper
operation of sensitive systems (communication,
radar or telemetry). International Rectifier provides
synchronization of multiple AMR type converters to
match switching frequency of the converter to the
frequency of the system clock, thus eliminating this
type of noise.
5
AMR28XXD Series
Mechanical Outline
0.220
Ø 0.125
3 Places
R 0.15 Typ
0.050
2
9
3
8
1
10
0.040 D x 0.26 L Pins
1.600
2.440
2.74
Ref
2.14
1.200
7
0.800
0.400
6
5
0.420
0.150
Typ
1.230
0.410
Max
1.53
Tolerance unless otherwise specified:
x.xx ±0.010
x.xxx ±0.005
Pin Designation
Pin #
Designation
1
+ Input
2
Input Return
3
Enable
4
Blank
5
Case Ground
6
- Output
7
Output Return
8
+ Output
9
NC
10
Sync Input
Radiation Specification
Parameter
Condition
Min
Typ
Max
Unit
Total Ionizing Dose
MIL-STD-883, Method 1019.4
Operating bias applied during exposure
25
-
-
KRads
(Si)
Heavy Ion
(Single event effects)
BNL Dual Van de Graf Generator
60
-
-
MeV•cm
/mg
2
International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program.
6
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AMR28XXD Series
Device Screening
Requirement
MIL-STD-883 Method
Temperature Range
No Suffix
d
CH
d
-55°C to +125°C
-55°C to +125°C
EM
-55°C to +85°C
Element Evaluation
MIL-PRF-38534
Class H
Class H
N/A
Non-Destructive Bond Pull
2023
N/A
N/A
N/A
Internal Visual
2017
Yes
Yes
c
Temperature Cycle
1010
Cond C
Cond C
Cond C
Constant Acceleration
2001, Y1 Axis
3000 Gs
3000 Gs
3000 Gs
PIND
2020
Cond A
Cond A
N/A
320 hrs @ 125°C
320 hrs @ 125°C
48 hrs @ 125°C
( 2 x 160hrs )
( 2 x 160hrs )
Burn-In
1015
Final Electrical
MIL-PRF-38534
-55°C, +25°C,
-55°C, +25°C,
-55°C, +25°C,
( Group A )
& Specification
+125°C
+125°C
+85°C
PDA
MIL-PRF-38534
2%
2%
N/A
Seal, Fine and Gross
1014
Cond A, C
Cond A, C
Cond A
Radiographic
2012
Yes
Yes
N/A
External Visual
2009
Yes
Yes
c
Notes:
 Best commercial practice.
‚ Device with ‘/CH’ suffix is a DSCC class H compliant without radiation performance. No suffix is a radiation rated
device but not available as a DSCC qualified SMD per MIL-PRF-38534.
International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program.
Part Numbering
AMR 28 15 D /EM
Model
Input Voltage
28 = 28V
Output Voltage
03R3 = 3.3V, 05 = 5V,
12 = 12V, 15 = 15V
Screening Level
(Please refer to Screening Table)
No Suffix, CH, EM
Output
S = Single
D = Dual
T = Triple
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 252-7105
IR SANTA CLARA: 2270 Martin Av., Santa Clara, California 95050, Tel: (408) 727-0500
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 09/2008
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