IRF AMR28XXS Hybrid - high reliability radiation tolerant dc/dc converter Datasheet

PD-94691B
AMR28XXS SERIES
28V Input, Single Output
HYBRID - HIGH RELIABILITY
RADIATION TOLERANT
DC/DC CONVERTER
Description
The AMR28XXS 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
AMR28XXS Series.
The physical configuration of the AMR28XXS 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 secure
mechanical attachment than traditional radially leaded
packages. International Rectifier’s rugged ceramic seal
pins are used exclusively in the package thereby
assuring long term hermeticity.
AMR
Features
n
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n
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30 Watts Output Power
Available in 3.3, 5, 12 and 15 Volt Outputs
18 - 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
ATR28XXS Series
n Standard Microcircuit Drawings Available
The AMR28XXS has been designed for high density
using chip and wire hybrid technology that complies
with the class H requirements 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.
Consult IR Santa Clara for special requirements.
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09/15/08
AMR28XXS 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 VDC ±5%, CL=0, unless otherwise specified.
Group A
Subgroups
Parameter
Test
Conditions
Input Voltage
Nom
Max
Unit
16
28
40
V
3.30
5.00
12.00
15.00
3.35
5.05
12.12
15.15
V
Iout=0
Output Voltage
Output Current
Min
AMR2803R3S
AMR2805S
AMR2812S
AMR2815S
1
1
1
1
3.25
4.95
11.88
14.85
AMR2803R3S
AMR2805S
AMR2812S
AMR2815S
2, 3
2, 3
2, 3
2, 3
3.20
4.90
11.70
14.60
1
AMR2803R3S
AMR2805S
AMR2812S
AMR2815S
1,
1,
1,
1,
AMR2803R3S
All Others
1, 2, 3
1, 2, 3
Output Power
2,
2,
2,
2,
3
3
3
3
2
Output Ripple Voltage
AMR2803R3S
AMR2805S
AMR2812S
AMR2815S
Output Voltage Regulation
1,
1,
1,
1,
2,
2,
2,
2,
3
3
3
3
3.40
5.10
12.30
15.40
Vin = 18, 28, 40 Volts
7500
6000
2500
2000
100% load
25
30
Vin = 18, 28, 40 Volts
BW = 20 Hz to 2 MHz
60
60
60
75
mA
W
mVPP
3
Line
AMR2803R3S
AMR2805S
AMR2812S
AMR2815S
1,
1,
1,
1,
2,
2,
2,
2,
3
3
3
3
Load
AMR2803R3S
AMR2805S
AMR2812S
AMR2815S
1,
1,
1,
1,
2,
2,
2,
2,
3
3
3
3
Vin = 18, 28, 40 Volts
Iout = 0, 50%, and 100% load
±10
±10
±30
±40
±30
±30
±60
±75
±10
±10
±50
±50
±50
±50
±120
±150
mV
For Notes to Specifications, refer to page 4
2
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AMR28XXS Series
Static Characteristics
(Continued) -55°C ≤ TCASE ≤ +125°C, VIN=28 VDC ±5%, CL=0, unless otherwise specified.
Group A
Subgroups
Parameter
Input Current
No Load
AMR2803R3S
AMR2805S
AMR2812S
AMR2815S
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
Iout=0, Inhibit =open
All
1, 2, 3
Inhibit shorted to input return
1, 2, 3
Vin = 16, 28, 40 Volts, 100%
load, BW = 20 Hz to 2 MHz
Inhibited
Input Ripple Current
2
Min
Nom
Max
20
20
20
20
50
50
75
100
8.0
18
50
Unit
mA
mAPP
100% load
Efficiency
AMR2803R3S
AMR2805S
AMR2812S
AMR2815S
1
1
1
1
74
76
80
79
AMR2803R3S
AMR2805S
AMR2812S
AMR2815S
2, 3
2, 3
2, 3
2, 3
70
72
75
75
Isolation
Capacitive Load
Test
Conditions
4, 5
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, 5, 6
100% load
500
Sync Frequency Range
4, 5, 6
100% load
500
MIL-HDBK-217F, N2
SF @ Tc = 35°C
940
MTBF
Weight
%
MΩ
550
500
µF
19
W
600
KHz
700
KHz
Khrs
68
g
For Notes to Specifications, refer to page 4
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AMR28XXS Series
Dynamic Characteristics
-55°C ≤ TCASE ≤ +125°C, VIN=28 V DC ±5%, C L=0, unless otherwise specified.
Group A
Subgroups
Parameter
Output Response To Step
7
Transient Load Changes
AMR2803R3S
AMR2805S
AMR2812S
AMR2815S
AMR2803R3S
AMR2805S
AMR2812S
AMR2815S
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
Test Conditions
Ù 100%
Load step 50%
Load step 8%
Ù 50%
Output Response Transient Step
5, 9
Line Changes
AMR2803R3S
AMR2805S
AMR2812S
AMR2815S
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
Recovery Time Transient Step
5, 8, 9
Line Changes
4, 5, 6
Turn On Overshoot
AMR2803R3S
AMR2805S
AMR2812S
AMR2815S
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
0% load to 100% load
4, 5, 6
0% load to 100% load
10
Short Circuit Recovery
5, 10
4, 5, 6
Input step from/to 18 to 40Vdc,
100% load
Input step from/to 18 to 40Vdc,
100% load
Max
+500
+500
+800
+1000
-500
-500
-1000
-1000
+500
+500
+1000
+1000
Ù
Ù
4, 5, 6
Nom
-500
-500
-800
-1000
Load step 50% 100% or
Load step 8% 50%
Recovery Time, Step Transient
7, 8
Load Changes
Turn On Delay
Min
200
-500
-500
-1200
-1500
+500
+500
+1200
+1500
10
500
500
800
1000
Unit
mVpk
µs
mVpk
ms
mVpk
25
ms
25
ms
Notes to Specifications
1
2
3
4
5
6
7
8
9
Parameter guaranteed by line and load regulation tests.
Bandwidth guaranteed by design. Tested for 20 KHz to 2.0 MHz.
Output voltage measured at load with remote sense leads connected across load.
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 2.0 and 10 microseconds.
Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1 % of VOUT at 50 percent load.
Input step transition time between 2.0 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.
4
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AMR28XXS Series
Block Diagram
EMI
Filter
1
+Input
8 +Output
Under-Voltage
Detector
7
Output
Return
Primary
Housekeeping
Supply
3
Enable
Drive
Pulse Width
Modulator FB
10
Sync
Input
Error
Amp &
Ref
CS
9 +Sense
6
-Sense
Input
Return
2
Application Information
Inhibit Function (Enable)
Device Synchronization
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.
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.
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.
MTBF vs Case Temperature for AMR2803R3S
1.60E+06
1.40E+06
MTBF
1.20E+06
1.00E+06
8.00E+05
6.00E+05
4.00E+05
2.00E+05
0.00E+00
0
20
40
60
80
100
120
Case Temperature, deg C
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AMR28XXS 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
5
6
0.400
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
Sense Return
7
Output Return
8
+ Output
9
+ Sense
10
Sync Input
Radiation Specification
Parameter
Conditions
Min
Total Ionizing Dose
MIL-STD-883, Method 1019.4
Operating bias applied during exposure
30
Heavy Ion
(Single event effects)
BNL Dual Van de Graf Generator
60
Typ
Max
Unit
KRads
(Si)
2
MeV•cm
/mg
International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program.
6
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AMR28XXS Series
Device Screening
Requirement
MIL-STD-883 Method
Temperature Range
No Suffix
d
CH
d
EM
-55°C to +125°C
-55°C to +125°C
Element Evaluation
MIL-PRF-38534
Class H
Class H
-55°C to +85°C
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
Burn-In
1015
( 2 x 160hrs )
( 2 x 160hrs )
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 05 S /EM
Standard Microcircuit Drawing Equivalence Table
Standard Microcircuit
Drawing Number
IR Standard
Part Number
5962-04245
AMR2803R3S
5962-04246
AMR2805S
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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