Texas Instruments LM5032 Handleiding

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LM5032

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2.5V

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36V to 75V

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Design

LM5032

SNVS344B–MARCH2005–REVISEDDECEMBER2014

LM5032High-VoltageDualInterleavedCurrentModeController

1Features3Description

TheLM5032dualcurrentmodePWMcontroller

1

•TwoIndependentPWMCurrentModeControllers

containsallthefeaturesneededtocontroleithertwo

•IntegratedHigh-VoltageStartupRegulator

independentforwarddc/dcconvertersorasinglehigh

•Compound2.5-AMainOutputGateDrivers

currentconvertercomprisedoftwointerleavedpower

stages.Thetwocontrollerchannelsoperate180°out

•SingleResistorOscillatorSettingto2MHz

ofphasetherebyreducinginputripplecurrent.The

•SynchronizableOscillator

LM5032includesastartupregulatorthatoperates

•ProgrammableMaximumDutyCycle

overawideinputrangeupto100Vandcompound

(bipolar+CMOS)gatedriversthatprovidearobust

•MaximumDutyCycleFold-BackatHigh-Line

2.5-Apeaksinkcurrent.Theadjustablemaximum

Voltage

PWMdutycyclereducestressontheprimaryside

•AdjustableTimerforHiccupModeCurrent

MOSFETswitches.Additionalfeaturesinclude

Limiting

programmablelineundervoltagelockout,cycle-by-

•IntegratedSlopeCompensation

cyclecurrentlimit,hiccupmodefaultoperationwith

adjustableresponsetime,PWMslopecompensation,

•AdjustableLineUndervoltageLockout

soft-start,anda2-MHzcapableoscillatorwith

•IndependentlyAdjustableSoft-Start(Each

synchronizationcapability.

Regulator)

•DirectInterfacewithOpto-CouplerTransistor

DeviceInformation

(1)

•ThermalShutdown

PARTNUMBERPACKAGEBODYSIZE(NOM)

•TSSOP16-PinPackage

LM5032TSSOP(16)5.00mmx4.40mm

(1)Forallavailablepackages,seetheorderableaddendumat

2Applications

theendofthedatasheet.

•TelecommunicationPowerConverters

•IndustrialPowerConverters

•42-VAutomotiveSystems

TypicalApplicationCircuit

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Product specificaties