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International Rectifier Electronic Components Datasheet



AHE2815D

HYBRID-HIGH RELIABILITY DC/DC CONVERTER



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AHE2815D pdf
HYBRID-HIGH RELIABILITY
DC/DC CONVERTER
PD-94555B
AHE28XXD SERIES
28V Input, Dual Output
Description
The AHE Series of DC/DC converters feature high
power density and an extended temperature range for
use in military and industrial applications. Designed to
MIL-STD-704D input requirements, these devices have
nominal 28VDC inputs with ±5V, ±12V and ±15V dual
outputs to satisfy a wide range of requirements. The
circuit design incorporates a pulse width modulated
push-pull topology operating in the feed-forward mode
at a nominal switching frequency of 250KHz. Input to
output isolation is achieved through the use of
transformers in the forward and feedback circuits.
The advanced feedback design provides fast loop
response for superior line and load transient characteristics
and offers greater reliability and radiation tolerance
than devices incorporating optical feedback circuits.
Manufactured in a facility fully qualified to MIL-PRF-
38534, these converters are fabricated utilizing DSCC
qualified processes. For available screening options,
refer to device screening table in the data sheet.
Variations in electrical, mechanical and screening can
be accommodated. Contact IR Santa Clara for special
requirements.
AHE
Features
n 17V to 40VDC Input Range
n 28VDC Nominal Input
n ± 5V, ±12V and ±15V Outputs Available
n Indefinite Short Circuit and Overload
Protection
n 12.9W/in3 Power Density
n 15W Output Power
n Fast Loop Response for Superior Transient
Characteristics
n Operating Temperature Range from -55°C to
+125°C Available
n Popular Industry Standard Pin-Out
n Resistance Seam Welded Case for Superior
Long Term Hermeticity
n Efficiencies up to 82%
n Shutdown from External Signal
n Military Screening
n 314,000 hour MTBF at 85°C (AUC)
n Standard Microcircuit Drawings Available
www.irf.com
www.DataSheet4U.net
1
01/08/07



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AHE2815D pdf
AHE28XXD Series
Specifications
Absolute Maximum Ratings
Input voltage
Soldering temperature
Operating case temperature
Storage case temperature
-0.5V to +50VDC
300°C for 10 seconds
-55°C to +125°C
-65°C to +135°C
AHE2805D
Table I. Electrical Performance Characteristics
Test
Symbol
Conditions
-55°C Tc +125°C
Vin = 28 Vdc ±5%, CL = 0
Unless otherwise specified
Output voltage
Output current 9, 11
Output ripple voltage 8, 9
Output power 4, 9, 11
Line 9
Regulation 10
Load
Regulation 9
Input current
Input ripple current 8
Efficiency
Isolation
Capacitive load 6, 12
Power dissipation
load fault
Switching frequency 9
VOUT
IOUT
VRIP
POUT
VRLINE
VRLOAD
IIN
IRIP
EFF
ISO
CL
PD
FS
IOUT = 0
VIN = 17, 28, and 40 V dc
VIN = 17, 28, and 40 V dc,
B.W. = DC to 2MHz
VIN =17,28, and 40 V dc
VIN = 17, 28, and 40 V dc,
Iout = 0, ±313, and ±625mA
VIN = 17, 28, and 40 V dc,
IOUT = 0, ±313,and ±625
mA
IOUT = 0, inhibit (pin 2)
tied to input return (pin 10)
IOUT = 0,
inhibit (pin 2) = open
IOUT = ±625mA
B.W. = DC to 2MHz
IOUT = ±625mA
TC = +25°C
Input to output or any pin
to case (except pin 8)
at 500V dc Tc = +25ºC
No effect on dc
performance,
Tc = +25ºC
Overload, TC = +25°C 3
Short circuit, TC = +25°C
IOUT = ±625mA
Output response to step
transient load changes 7
VOTLOAD 50% load to/from100%load
No load to/from 50% load
Group A
Subgroups
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
1
4
1
1
4,5,6
4
5,6
4
5,6
Device
Types
All
All
All
All
All
All
All
All
All
All
All
All
01
02
03
All
All
Limits
Min
±4.95
±4.90
0.0
15
Max
±5.05
±5.10
±625
60
25
50
110
18
40
50
80
100
200
225
225
250
-300
-450
-500
-750
6.0
6.0
275
245
275
+300
+450
+500
+750
Unit
V
mA
mVp-p
W
mV
mV
mA
mAp-p
%
M
µF
W
KHz
mVpk
For Notes to Specifications, refer to page 3
2
www.irf.com



Part Number AHE2815D
Description HYBRID-HIGH RELIABILITY DC/DC CONVERTER
Maker International Rectifier - International Rectifier
Total Page 10 Pages
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