元器件交易网

SGLS371–JANUARY2007

WIDE-INPUT-RANGENONSYNCHRONOUSVOLTAGE-MODECONTROLLER

FEATURES

ControlledBaseline

–OneAssembly/TestSite,OneFabricationSite

ExtendedTemperaturePerformanceof–55°Cto125°C

EnhancedDiminishingManufacturingSources(DMS)Support

EnhancedProduct-ChangeNotificationQualificationPedigree(1)

InputVoltageRange4.5Vto52VOutputVoltage(700mVto87%Vin)200-mAInternalP-ChannelFETDriverVoltageFeed-ForwardCompensationUndervoltageLockout

ComponentqualificationinaccordancewithJEDECandindustrystandardstoensurereliableoperationoveran

extendedtemperaturerange.Thisincludes,butisnotlimitedto,HighlyAcceleratedStressTest(HAST)orbiased85/85,temperaturecycle,autoclaveorunbiasedHAST,

electromigration,bondintermetalliclife,andmoldcompoundlife.Suchqualificationtestingshouldnotbeviewedasjustifyinguseofthiscomponentbeyondspecifiedperformanceandenvironmentallimits.

(1)

ProgrammableFixed-Frequency(35kHzto500kHz)Operation

ProgrammableShort-CircuitProtectionHiccupOvercurrentFaultRecoveryProgrammableClosed-LoopSoftStart700-mV1%ReferenceVoltageExternalSynchronization

Small8-PinSmall-OutlineIntegratedCircuit(SOIC)(D)Package

APPLICATIONS

IndustrialControl

DistributedPowerSystemsDSL/CableModemsScannersTelecom

DESCRIPTION

TheTPS40200isaflexiblenonsynchronouscontrollerwithabuilt-in200-mAdriverforP-channelFETs.Thecircuitoperateswithinputsupto52V,withapower-savingfeaturethatturnsoffdrivercurrentoncetheexternalFEThasbeenfullyturnedon.Thisfeatureextendstheflexibilityofthedevice,allowingittooperatewithaninputvoltageupto52V,withoutdissipatingexcessivepower.Thecircuitoperateswithvoltage-modefeedbackandhasfeed-forwardinput-voltagecompensationthatrespondsinstantlytoinput-voltagechange.Theintegral700-mVreferenceistrimmedto2%,providingthemeanstoaccuratelycontrollowvoltages.TheTPS40200isavailableinan8-pinSOIC,andsupportsmanyofthefeaturesofmorecomplexcontrollers.Clockfrequency,softstart,andovercurrentlimiteachareeasilyprogrammedbyasingle,externalcomponent.Theparthasundervoltagelockout,andcanbeeasilysynchronizedtoothercontrollersorasystemclocktosatisfysequencingand/ornoise-reductionrequirements.

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.ProductsconformtospecificationsperthetermsoftheTexasInstrumentsstandardwarranty.Productionprocessingdoesnotnecessarilyincludetestingofallparameters.

Copyright©2007,TexasInstrumentsIncorporated