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參數(shù)資料
| 型號： | AHE28XXS |
| 廠商： | International Rectifier |
| 英文描述： | ADVANCED ANALOG HYBRID-HIGH RELIABILITY DC/DC CONVERTERS |
| 中文描述： | 先進的模擬混合，高度可靠的DC / DC轉換器 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 63K |
| 代理商： | AHE28XXS |
10/28/02
www.irf.com
1
ADVANCED ANALOG
HYBRID-HIGH RELIABILITY
DC/DC CONVERTERS
AHE28XXS SERIES
28V Input, Single Output
Description
17 to 40 VDC Input Range (28 VDC Nominal)
5
V, 12V and 15V Outputs Available
Indefinite Short Circuit and Overload
Protection
17 W/in
15 and 20 Watts Output Power Models
Fast Loop Response for Superior Transient
Characteristics
Operating Temperature Range from -55°C to
+125°C Available
Popular Industry Standard Pin-Out
Resistance Seam Welded Case for Superior
Long Term Hermeticity
Efficiencies up to 84%
Shutdown from External Signal
Military Screening
325,000 hour MTBF at 85°C (AUC)
Power Density
Features
AHE
The advanced feedback design provides fast loop re-
sponse for superior line and load transient character-
istics and offers greater reliability and radiation toler-
ance than devices incorporating optical feedback cir-
cuits.
Three standard temperature grades are offered with
screening options. Refer to Part Number section. They
can be provided in a standard plug-in package for PC
mounting or in a flanged package for more severe en-
vironments.
These converters are manufactured in a facility certi-
fied to MIL-PRF-38534. All processes used to manu-
facture these converters have been qualified to enable
Advanced Analog to deliver compliant devices.
Two screening grades are available to satisfy a wide
range of requirements. The CH grade converters are
fully compliant to MIL-PRF-38534 for class H. The HB
grade converters are processed to full class H screen-
ing but do not have class H element evaluation as re-
quired by MIL-PRF-38534. Both grades are fully tested
and operate over the full military temperature range
without derating of output power. Variations in electri-
cal, mechanical and screening can be accommodated.
Extensive computer simulation using complex
modeling enables rapid design modification to
be provided. Contact Advanced Analog with spe-
cific requirements.
The AHE28XXS 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
single outputs to satisfy a wide range of requirements.
The circuit design incorporates a pulse width modu-
lated 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.
PD - 94554A
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