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PD-94690B
AMR28XXD SERIES 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.
28V Input, Dual Output
AMR Features
n n n n n n n n n n n n n 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 -55C to +125C 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
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09/15/08
AMR28XXD Series
Specifications
Absolute Maxim um Ratings
Input Voltage range Soldering temperature Storage case temperature 80V (100ms) 300C for 10 seconds -65C to +135C
Recom mended Operating Conditions
+16V to +40VD C Less than or equal to 30W -55C to +125C Output Power Operating case temperature
-0.5V to +50VD C (Continuous), Input Voltage range
Static Characteristics
Parameter Input Voltage Output Voltage
-55C TCASE +125C, VIN=28 V DC 5%, CL=0, unless otherwise specified.
Group A Subgroups
Test Conditions
Min 16
Nom 28
Max 40
Unit V
Iout=0 AMR2805D AMR2812D AMR2815D AMR2805D AMR2812D AMR2815D 1 1 1 2, 3 2, 3 2, 3 Vin = 16, 28, 40 Volts AMR2805D AMR2812D AMR2815D 1, 2, 3 1, 2, 3 1, 2, 3 100% load AMR2805D AMR2812D AMR2815D 1, 2, 3 1, 2, 3 1, 2, 3 Vin = 16, 28, 40 Volts BW = 20 Hz to 2 MHz
4.95 5.00 5.05 11.88 12.00 12.12 14.85 15.00 15.15 4.90 11.70 14.70 5.10 12.30 15.30
V
Output Current
1, 2
600 250 200
5400 2250 1800
mA
Output Power
30 30 30
W
Output Ripple Voltage
3
AMR2805D AMR2812D AMR2815D Output Voltage Regulation Line
4
1, 2, 3 1, 2, 3 1, 2, 3
60 85 85
mVPP
AMR2805D AMR2812D AMR2815D AMR2805D AMR2812D AMR2815D
1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3
Vin = 16, 28, 40 Volts Iout = 0, 50%, and 100% load
10 30 40 10 50 50
30 75 75 50 120 150
mV
Load
For Notes to Specifications, refer to page 5
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AMR28XXD Series
Static Characteristics (Continued) -55C TCASE +125C, VIN=28 VDC 5%, CL=0,unless
Group A Parameter Cross Regulation
5
otherwise pecified.
Subgroups
Test Conditions 10% TO 90% Load change
Min
Nom
Max 10 5.0 5.0
Unit
AMR2805D AMR2812D AMR2815D Input Current No Load AMR2805D AMR2812D AMR2815D AMR2805D AMR2812D AMR2815D
3, 4
1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 Iout=0, Inhibit =open 20 20 20 8.0 8.0 8.0
%
70 75 100 mA 15 18 18
Inhibit
Inhibit shorted to input return
Input Ripple Current
4
1, 2, 3
Vin = 16, 28, 40 Volts, 100% load, BW = 20 Hz to 2 MHz 100% load
50
mAPP
Efficiency
AMR2805D AMR2812D AMR2815D AMR2805D AMR2812D AMR2815D Isolation
1 1 1 2, 3 2, 3 2, 3 1 Input to output or any pin to case (except case ground pin) at 500Vdc No effect on dc performance
76 80 79 72 75 74 100
%
M
Capacitive Load
6, 7
4 1, 2, 3 4, 5, 6 4, 5, 6
200 9.0
F W KHz KHz Khrs
Short Circuit Power Dissipation Switching Frequency 4 Sync frequency range MTBF
100% load 100% load MIL-HDBK-217F, SF@ Tc=35C
500 500 800
550
600 700
Weight
68
g
For Notes to Specifications, refer to page 5
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AMR28XXD Series
Dynamic Characteristics
Parameter Output Response To Step 4, 9 Transient Load Changes AMR2805D AMR2812D AMR2815D AMR2805D AMR2812D AMR2815D Recovery Time, Step Transient 4, 9, 10 Load Changes AMR2805D AMR2812D AMR2815D AMR2805D AMR2812D AMR2815D AMR2805D AMR2812D AMR2815D Output Response Transient Step 4, 7, 11 Line Changes AMR2805D AMR2812D AMR2815D Recovery Time Transient Step Line 4, 7, 10, 11 Changes AMR2805D AMR2812D AMR2815D Turn On Overshoot
4
-55C TCASE +125C, VIN=28 V DC 5%, CL=0, unless otherwise specified. Group A Subgroups Test Conditions Min Nom Max Unit
Load step 50%U 100%
4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6
Load step 0%
U 50%
-400 -400 -400 -400 -800 -800
+400 +400 +400 +400 +800 +800
mV pk
4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6
Load step 50%U 100%
70 70 70 500 500 500 5 5 5
s
Load step 0% => 50% Load step 50% => 0%
s
ms
4, 5, 6 4, 5, 6 4, 5, 6
Input step from/to 16 to 40Vdc, 100% load
-500 -1200 -1500
+500 +1200 +1500
mV pk
4, 5, 6 4, 5, 6 4, 5, 6
Input step from/to 16 to 40Vdc, 100% load
10 10 10
ms
AMR2805D AMR2812D AMR2815D Turn On Delay
4, 12
4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6
0% load to 100% load
450 600 750 25 25 25
mV pk
AMR2805D AMR2812D AMR2815D Short Circuit Recovery
7
0% load to 100% load
ms
AMR2805D AMR2812D AMR2815D
4, 5, 6 4, 5, 6 4, 5, 6
25 25 25
ms
For Notes to Specifications, refer to page 5
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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
1
+Input Under-Voltage Detector
EMI Filter
8
+Output
7
Output Return
3
Enable
5
Primary Housekeeping Supply
6
-Output
Case
10
Drive
Sync Input Input Return
2
Pulse Width FB Modulator
CS
Error Amp & Ref
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 A of current. The open circuit voltage of the inhibit input is 10 1.0 VDC.
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.
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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AMR28XXD Series
Mechanical Outline
O 0.125 3 Places 0.220 R 0.15 Typ 0.050
0.040 D x 0.26 L Pins
9
10
8
7
6
Radiation Specification
Parameter
1 2 3 5
1.230 1.53
1.600 1.200 0.800 0.400
2.440
2.74 Ref
2.14
0.420
0.150 Typ
0.410 Max
Tolerance unless otherwise specified: x.xx 0.010 x.xxx 0.005
Pin Designation
Pin # 1 2 3 4 5 6 7 8 9 10 Designation + Input Input Return Enable Blank Case Ground - Output Output Return + Output NC Sync Input
Condition MIL-STD-883, Method 1019.4 Operating bias applied during exposure BNL Dual Van de Graf Generator
Min 25 60
Typ -
Max -
Unit KRads (Si) MeV*cm /mg
2
Total Ionizing Dose Heavy Ion (Single event effects)
International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program.
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AMR28XXD Series
Device Screening
Requirement
Temperature Range Element Evaluation Non-Destructive Bond Pull Internal Visual Temperature Cycle Constant Acceleration PIND Burn-In Final Electrical ( Group A ) PDA Seal, Fine and Gross Radiographic External Visual MIL-PRF-38534 2023 2017 1010 2001, Y1 Axis 2020 1015 MIL-PRF-38534 & Specification MIL-PRF-38534 1014 2012 2009
MIL-STD-883 Method
No Suffix
Class H N/A Yes Cond C 3000 Gs Cond A
d
CH
d
EM
-55C to +85C N/A N/A
-55C to +125C
-55C to +125C Class H N/A Yes Cond C 3000 Gs Cond A 320 hrs @ 125C ( 2 x 160hrs ) -55C, +25C, +125C 2% Cond A, C Yes Yes
c
Cond C 3000 Gs N/A 48 hrs @ 125C -55C, +25C, +85C N/A Cond A N/A
320 hrs @ 125C ( 2 x 160hrs ) -55C, +25C, +125C 2% Cond A, C 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
Screening Level
No Suffix, CH, EM
(Please refer to Screening Table)
Output Voltage
Output
03R3 = 3.3V, 05 = 5V, 12 = 12V, 15 = 15V
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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