TPS22929DDBVT;TPS22929DDBVR;TPS22929DEVM-661;中文规格书,Datasheet资料

PowerSupply

OFFON

TPS22929VINVOUT

RLCL

GNDON

GNDC

INTPS22929

www.ti.comSLVSB39–DECEMBER2011Ultra-Small,LowonResistanceLoadSwitchwithControlledTurn-on

CheckforSamples:TPS22929

FEATURESDESCRIPTION

TheTPS22929isasmall,lowrONloadswitchwith•IntegratedSingleLoadSwitchcontrolledturnon.ThedevicecontainsaP-channel•SmallSOT23-6packageMOSFETthatcanoperateoveraninputvoltage•InputVoltageRange:1.4-Vto5.5-Vrangeof1.4Vto5.5V.Theswitchiscontrolledbyanon/offinput(ON),whichiscapableofinterfacing•LowON-Resistancedirectlywithlow-voltagecontrolsignals.The–rON=115-mΩatVIN=5-VTPS22929isactivehighenable.–rON=115-mΩatVIN=3.3-VTheTPS22929containsa150-Ωon-chipload–rON=118-mΩatVIN=2.5-Vresistorforquickoutputdischargewhentheswitchis–rON=129-mΩatVIN=1.5-Vturnedoff.Therisetimeofthedeviceisinternallycontrolledinordertoavoidinrushcurrent.The•1.8-AContinuousSwitchCurrent(25C)TPS22929familyhasvariousslewrateoptions•LowThresholdControlInput(see).•ControlledSlew-rateOptionsTheTPS22929deviceprovidescircuitbreaker•Under-VoltageLockOutfunctionalitybylatchingoffthepower-switchduring•QuickOutputDischargeTransistorreversevoltagesituations.Aninternalreversevoltagecomparatordisablesthepower-switchwhenthe•ReverseCurrentProtectionoutputvoltage(VOUT)isdrivenhigherthantheinput(VIN)toquickly(10µstyp)stoptheflowofcurrentAPPLICATIONStowardstheinputsideoftheswitch.Reversecurrent•PortableIndustrialEquipmentisalwaysactive,evenwhenthepower-switchisdisabled.Additionally,under-voltagelockout(UVLO)•PortableMedicalEquipmentprotectionturnstheswitchoffiftheinputvoltageis•PortableMediaPlayerstoolow.•PointOfSalesTerminalTheTPS22929isavailableinansmall,space-saving•GPSDevices6-pinSOT23-6packageandischaracterizedfor•DigitalCamerasoperationoverthefree-airtemperaturerangeof–40°Cto85°C.•PortableInstrumentation

•SmartphonesTYPICALAPPLICATION

Table1.FeatureList

MAXIMUMOUTPUTrON(typ)at3.3RiseTimeat3.3VQUICKOUTPUTDEVICECURRENTENABLEV(typ)DISCHARGE(1)(3.3Vand25°C)(2)

TPS22929A(3)115-mΩ0.5µsYes1.8-AActiveHighTPS22929B(3)115-mΩ100µsYes1.8-AActiveHighTPS22929C(3)115-mΩ1000µsYes1.8-AActiveHighTPS22929D115-mΩ4500µsYes1.8-AActiveHigh

(1)Thisfeaturedischargestheoutputoftheswitchtogroundthroughan150-Ωresistor,preventingtheoutputfromfloating.(2)See“ThermalConsiderations”sectioninApplicationInformationtocalculatemaximumcontinuouscurrentforaspecificapplication.(3)Contactlocalsales/distributororfactoryforavailability.

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.Copyright©2011,TexasInstrumentsIncorporatedProductsconformtospecificationsperthetermsoftheTexasInstrumentsstandardwarranty.Productionprocessingdoesnotnecessarilyincludetestingofallparameters.

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1

2

3456VIN

GND

VINVOUT

GND

ONTPS22929

SLVSB39–DECEMBER2011www.ti.com

Thesedeviceshavelimitedbuilt-inESDprotection.TheleadsshouldbeshortedtogetherorthedeviceplacedinconductivefoamduringstorageorhandlingtopreventelectrostaticdamagetotheMOSgates.

ORDERINGINFORMATION

ORDERABLEPARTTAPACKAGE(1)TOP-SIDEMARKINGNUMBERTPS22929ADBVTTPS22929ADBVRTPS22929BDBVTContactfactoryforContactfactoryforavailability(2)availability(2)TPS22929BDBVR–40°Cto85°CDBVTPS22929CDBVTTPS22929CDBVRTapeof3000TPS22929DDBVT_F4_Reelof250TPS22929DDBVR

(1)Packagedrawings,standardpackingquantities,thermaldata,symbolization,andPCBdesignguidelinesareavailableatwww.ti.com/sc/package.(2)ContactfactoryfordetailsandavailabilityforPREVIEWdevices,minimumorderquantitiesmayapply.

DEVICEINFORMATION

DBVPACKAGE

PINFUNCTIONS

TPS22929PINNAMEDESCRIPTIONDBV2,5GNDGround3ONSwitchcontrolinput,activehigh.Donotleavefloating1VOUTSwitchoutputSwitchinput,bypassthisinputwithaceramiccapacitorto4,6VINground

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ProductFolderLink(s):TPS22929

http://oneic.com/

ControlLogicON

GNDUVLOReverseCurrentProtectionVIN

V

OUTTPS22929

www.ti.comSLVSB39–DECEMBER2011

BLOCKDIAGRAM

Table2.FUNCTIONTABLE

ONVINtoVOUTVOUTtoGND(1)

LOFFONHONOFF

(1)SeeApplicationsection‘OutputPull-Down’

ABSOLUTEMAXIMUMRATINGS

overoperatingfree-airtemperaturerange(unlessotherwisenoted)VALUEUNITVINInputvoltagerange–0.3to6VVOUTOutputvoltagerangeVIN+0.3VVONInputvoltagerange–0.3to6VMaximumcontinuouspowerdissipation@25°C463PMAXMaximumcontinuouspowerdissipation@70°C254mWMaximumcontinuouspowerdissipation@85°C185IMAXMaximumcontinuousoperatingcurrent2ATAOperatingfree-airtemperaturerange–40to85°CTJMaximumjunctiontemperature125°CTSTGStoragetemperaturerange–65to150°CHuman-BodyModel(HBM)(VIN,VOUT,GND2000pins)ESDElectrostaticdischargeprotectionVCharged-DeviceModel(CDM)(VIN,VOUT,ON,1000GNDpins)