Features

• –40°Cto+85°Coperation

• 19to40VDCinput

• 50Vfor50mstransientprotection

• Fullyisolated

• Fixedfrequency

• Remotesenseonsinglemodels

• Inhibit/syncfunction

• Indefiniteshortcircuitprotection

• Upto84%efficiency

Size(max.):3.20x2.46x0.595inches(81.3x62.5x15.11mm)

SeecaseLfordimensions.

Weight: 140gramstypical

Screening:Standardonly.Seescreeningtableformoreinformation.

description

HR700SeriesDC/DCconvertersofferupto70wattsofpowerfrom

single,dual,ortripleoutputsinonepackage.Theconverterscombine

thesmallsizeandhighreliabilityofhybrid-basedcomponents,thehigh

efficiencyofswitchingregulators,andtheisolation,regulation,andlow

noisecharacteristicsoflinearregulators.

small size

The HR700 converters are manufactured using techniques that

provideverysmallsizeandlowprofilecomponents.Eachconverter

useslessthaneightsquareinchesofboardareasandis0.595inches

highorless.Theoverallpowerdensityis20wattspercubicinch.

high reliability

Assembled using thick-film technology, the HR700 parts use the

same manufacturing procedures and quality controls that we apply

to converters designed for commercial airliners, the space shuttle,

advancedfighteraircraft,andotherhighreliabilityapplications.The

steelcasesarehermeticallysealedinadrynitrogenenvironmentand

devicesare100%electricallytested.

high performance

The HR700 series parts are high efficiency, low noise, pulse-width

modulated converters which use a quasi-square wave forward

converter design with a nominal switching frequency of 245 kHz.

Isolationbetweeninputanoutputisprovidedwithatransformerinthe

forwardpowerloopandawideband,temperatureinsensitive,optical

linkinthefeedbackcontrolloop.Shortcircuitprotectionis

providedbydetectingpeakprimaryswitchingcurrentonacyclebasis

andlimitingittoapproximately130%ofthefullloadinputcurrent.This

methodresultsinquickandpositivecurrentlimitingundershortcircuit

conditions.

HR700SeriesDC/DCconvertersaredesignedtoprovidefullpower

operationovertheinputvoltagerangeof19to40VDC.Operation

below an input of 19 volts is possible with derated output power.

Outputsareavailableas5,12,and15VDCsingle,dualandtriple

outputs.Theconverterstypicallyprovidegreaterthan80%efficiency

overtheentireinputrange.Lineregulationistypicallywithin0.1%and

loadregulationwithin0.2%.

low noise

TheHR700Seriesconvertersofferlownoiseonboththeinputand

output lines. A two section, four pole, LC input filter is included to

provideverylowreflectedlineripplecurrent.Outputrippleismain-

tainedatlessthan50mVp-pforsingleanddualmodelsand85mV

p-pfortripleoutputmodels.

inhibit

An inhibit/sync pin is standard on all models of the HR700 Series

converters.Thepinservesasbothanoutputinhibitandasasynchro-

nizationinput.IntheinhibitmodeanopencollectorTTLcompatible

low(<0.8V)willdisableinternalswitchingtherebyinhibitingtheunit’s

output.Inhibitinginthismannerresultsinanextremelylowquiescent

current.

mODELS

Dual

±12

±15

triple

+5 & ±12

+5 & ±15

HR700

SERIES

70WATT

NOT RECOMMENDED FOR NEW DESIGNS

Page1of7

HR700RevC-20100212

CraneAerospace&Electronics

ElectronicsGroup(InterpointBrand)

POBox97005•RedmondWA98073-9705

425.882.3100•power@crane-eg.com

www.interpoint.com