AHP2809DWHB datasheet, PDF - EEWORLD Datasheet

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AHP2809DWHB: Description2-OUTPUT 80 W DC-DC REG PWR SUPPLY MODULE; Categoryaccessories; File Size226KB，12 Pages; ManufacturerInternational Rectifier （ Infineon ）; Websitehttp://www.irf.com/

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AHP2809DWHB Overview

2-OUTPUT 80 W DC-DC REG PWR SUPPLY MODULE

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PD-97388

AHP28XXS SERIES

HIGH RELIABILITY

HYBRID DC/DC CONVERTERS

Description

The AHP Series of DC/DC converters feature high power

density without derating over the full military temperature

range. This series is offered as lower cost alternatives to

the legendary AFL series with improved performance

for new design applications. The AHPs are form, fit and

functional replacement to the AFL series. The new AHP

series offers a full compliment of single and dual output

voltages operating from nominal +28 or +270 volt inputs

with output power ranging from 66 to 120 watts. For

applications requiring higher output power, multiple

converters can be operated in parallel. The internal

current sharing circuits assure equal current distribution

among the paralleled converters. Same as the AFL, the

AHP series incorporates International Rectifier's

proprietary magnetic pulse feedback technology

providing optimum dynamic line and load regulation

response. This feedback system samples the output

voltage at the pulse width modulator fixed clock

frequency; nominally 550 KHz. Multiple converters can

be synchronized to a system clock in the 500 KHz to 700

KHz range or to the synchronization output of one

converter. Under-voltage lockout, primary and secondary

referenced inhibit, soft-start and load fault protection are

provided on all models. Also included is input over-

voltage protection, a new protection feature unique to

the AHP.

These converters are hermetically packaged in two

enclosure variations, utilizing copper core pins to

minimize resistive DC losses. Three lead styles are

available, each fabricated with International Rectifier’s

rugged ceramic lead-to-package seal assuring long

term hermeticity in harsh environments.

Manufactured in a facility fully qualified to MIL-PRF-

38534, these converters are available in four screening

grades to satisfy a wide range of requirements. The

CH grade is fully compliant to the requirements of MIL-

PRF-38534 for class H. The HB grade is fully processed

and screened to the class H requirement, but does not

have material element evaluated to the class H

requirement. Both grades are tested to meet the

28V Input, Single Output

AHP

Features

16 To 40 Volt Input Range

3.3, 5,

, 9,12,15 and

Volts Outputs Available

High Power Density - up to 84 W / in3

Up To 120 Watt Output Power

Parallel Operation with Stress and Current Sharing

Input Over-Voltage Protection

High Efficiency - to 85%

Continuous Short Circuit and Overload Protection

External Synchronization Port

Remote Sensing Terminals

Primary and Secondary Referenced

Inhibit Functions

Line Rejection > 40 dB - DC to 50KHz

Fault Tolerant Design

Full Military Temperature Range

Ceramic Feedthru Copper Core Pins

Low Profile (0.380") Seam Welded Package

Dual Output Versions Available

complete group “A” test specification over the full

military temperature range without output power

de-rating. Two grades with more limited screening

are also available for use in less demanding

applications. Variations in electrical, mechanical

and screening can be accommodated. Please

contact IR Santa Clara for special requirements.

www.irf.com

04/16/09

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