bq294572,bq294582,bq294592ZHCS477C–SEPTEMBER2011–REVISEDMAY查詢樣品bq294502bq294504bq294512bq294515bq294522bq294524bq294532bq294562bq294572bq294582特 低功耗ICC≈1固定OVP閥值–bq2945024.35V4-s

(VCELL(ALL)<bq294504=4.35V和6.5-s延時計時 應用范bq294512=4.40V和4-s延時計時 bq294515=4.425V和4-s延時計時 –平板電bq294522=4.45V和4-s延時計時 –手寫板電bq294524=4.45V和6.5-s延時計時 –電動工bq294532=4.50V和4-s延時計時 –筆記本電bq294562=4.25V和4-s延時計時 –便攜式設備和儀bq2945724.00V4-sbq2945824.225V4-sbq2945844.225V6.5-sbq2945924.30V4-s±1023(TopView)123PWR65123PWR654

OUTVDDPleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddierstheretoappearsattheendofthisdatasheet.UNLESSOTHERWISENOTEDCopyright?2011–2012,TexasInstrumentsUNLESSOTHERWISENOTEDCopyright?2011–2012,TexasInstrumentsProductsconformtospecificationsperthetermsof EnglishDataSheet:Instrumentsstandardwarranty.Productionprocessingdoesnotnecessarilyincludetestingofallparameters.Thesedeviceshavelimitedbuilt-inESDprotection.TheleadsshouldbeshortedtogetherorthedevicecedinconductivefoamduringstorageorhandlingtopreventelectrostaticdamagetotheMOSgates.ORDERINGPARTOVPDELAYTIMEForthemostcurrentpackageandorderinginformation,seethePackageOptionAddendumattheendofthis,orvisitthedeviceproductfolderon ProductPreviewTHERMALTHERMAL6Junction-to-ambientthermalJunction-to-case(top)thermalJunction-to-boardthermalJunction-to-topcharacterizationJunction-to-boardcharacterizationJunction-to-case(bottom)thermalFormoreinformationabouttraditionalandnewthermalmetrics,seetheICPackageThermalMetricsapplicationreport,PINPinType1Senseinputforpositivevoltageofthethirdcellfromthebottomofthe2Senseinputforpositivevoltageofthesecondcellfromthebottomofthe3PElectricallyconnectedtoICgroundandnegativeterminalofthelowestcellinthestack4Senseinputforpositivevoltageofthelowestcellinthe5PPower6OutputdriveforexternalN-ChannelThermal—VSSpintobeconnectedtothePWRPADontheprintedcircuitboardforproperPINCeVotage(V3–V2,V2–V1,Thevoltagesensingforeachcellisdoneindependentlyusingamultiplexer.ThemethodofovervoltagedetectioniscomparingthevoltagetoanovervoltageprotectionvoltageVCeVotage(V3–V2,V2–V1,OUTFigure1.TimingforOvervoltageSensePositiveInputforThisisaninputtosenseeachsinglebatterycellvoltage.Aseriesresistorandacapacitoracrossthecellforeachinputisrequiredfornoisefilteringandstablevoltagemonitoring.OutputDrive,ThegateofanexternalN-ChannelMOSFETisconnectedtothisterminal.Thisoutputtransitionstoahighlevelwhenanovervoltageconditionisdetectedandaftertheprogrammeddelaytimer.TheoutwillresettoalowlevelifthecellvoltagefallsbelowtheVOVthresholdbeforethefixeddelaytimerexpires.SupplyInput,ThisterminalistheunregulatedinputpowersourcefortheIC.Aseriesresistorisconnectedtolimitthecurrent,andacapacitorisconnectedtogroundfornoisefiltering.ThermalPad,Forcorrectoperation,thepowerpad(PWRPAD)isconnectedtotheVSSterminalontheprintedcircuitFUNCTIONALBLOCKINTINT UMOveroperating-airtemperaturerange(unlessotherwiseSupplyvoltage–0.3to30InputvoltageV1–VSSorV2–VSSor–0.3to30V3–V2or–0.3to8Outputvoltage–0.3to30Continuoustotalpowerdissipation,SeepackagedissipationFunctional–65toStoragetemperaturerange,–65toLeadtemperature(soldering,10s),(1)Stressesbeyondthoselistedunder“absoluteumratings”maycausepermanentdamagetothedevice.Thesearestressratingsonlyandfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder“ mendedoperatingconditions”isnotimplied.Exposuretoabsolute-um–ratedconditionsforextendedperiodsmayaffectdevicereliability.MENDEDOPERATINGOver -airtemperaturerange(unlessotherwiseSupplyvoltage,3VInputvoltageV3–V2orV2–V1or05VOperatingambienttemperaturerange,SeeAPPLICATIONDCTypicalvaluesstatedwhereTA=25°CandVDD=10.8V,MIN/MAXvaluesstatedwhereTA=–40°Cto110°CandVDD=3Vto15V(unlessotherwisenoted).VoltageProtectionThresholdV(PROTECT)bq294502,fixeddelay4Vbq294504,fixeddelay6.5Vbq294512,fixeddelay4Vbq294515,fixeddelay4Vbq294522,fixeddelay4Vbq294524,fixeddelay6.5Vbq294532,fixeddelay4Vbq294562,fixeddelay4Vbq294572,fixeddelay4Vbq294582,fixeddelay4Vbq294584,fixeddelay6.5Vbq294592,fixeddelay4V TA= VOAOVDetectionTA=-40°CTA=0°CTA=60°CTA=110°CSupplyandLeakage Supply(V3–V2)=(V2–V1)=(V1–VSS)=4.0VFigure11for12(V3–V2)=(V2–V1)=(V1–VSS)=2.8VwithTA=–40°Cto60°C VxPinsMeasuredatV3,V2,andV1=4.0V(V2–V1)=(V1–VSS)=4.0VTA=0°Cto60°C(SeeFigure11forOutputDrive(V3–V2)or(V2–V1)or(V1–VSS)>VDD=7.2V,IOH=100μA,TA=–40°Cto6VTwoofthethreecellsareshortcircuitandonlyonecellispowered(V3–V2)or(V2–V1)or(V1–VSS)>VDD=Vx(Cellvoltage),IOH=100μA,TA=–40°CtoV(V3–V2),(V2–V1),and(V1–VSS)<VOV,IOL=100μA,TA=25°CTA=–40°Cto OUTShortOUT=0V(V3–V2)or(V2–V1)or(V1–VSS)> CL=1nF,VOH(OUT)=0Vto5V5 25FixedDelay DelayTimeFixedDelay,4sFixedDelay,ProductPreviewSpecifiedbydesign.Not100%testedinDCCHARACTERISTICS(TypicalvaluesstatedwhereTA=25°CandVDD=10.8V,MIN/MAXvaluesstatedwhereTA=–40°Cto110°CandVDD=3Vto15V(unlessotherwisenoted).VoltageProtectionThreshold DelayTimeinTestModeFixeddelay(InternalTYPICALICCICCCurrent1 Figure2.ICCCurrentConsumptionVersus

Figure3.bq294502OvervoltageThreshold(OVT)vs. Figure4.HysteresisVHYSVersusFigure5.OutputCurrentIOUTVersus

900IOHFigure6.OutputVoltageVersusOutput

APPLICATIONPack Figure7.ApplicationChangestotherangesstatedinTable1willimpacttheaccuracyofthecellmeasurements.Figure7showseachexternalcomponent.Table1.ExternalVoltagemonitorfilterΩVoltagemonitorfilterSupplyvoltagefilterΩSupplyvoltagefilterAPPLICATIONPackPack0.10.1

Figure8.3-SeriesCellConfigurationwithFixed Figure9.2-SeriesCellConfigurationwithInternal FixedDelayCUSTOMERTESTCustomerTestMode(CTM)helpstoreducetesttimeforcheckingtheovervoltagedelaytimerparameteroncethecircuitisimplementedinthebatterypack.ToenterCTM,VDDshouldbesettoatleast10VhigherthanV3(seeFigure10).Thedelaytimerisgreaterthan10ms,butconsiderablyshorterthanthetimerdelayinnormaloperation.ToexitCustomerTestMode,removetheVDDtoVC3voltagedifferentialof10Vsothatthedecreaseinthisvalueautomaticallycausesanexit.umVoltagesonanypins cingthepartCustomerTestMode.AlsoavoidexceedingAbsolute umVoltagesfortheindividualcellvoltages(V3–V2),(V2–V1),and(V1–VSS).Stressingthepinsbeyondtheratedlimitsmaycausepermanentdamagetothedevice.VOVtDELAY>10CellVoltage(VVOVtDELAY>10CellVoltage(V)VDD–V3OUTFigure10.TimingforCustomerTestFigure11showsthemeasurementforcurrentconsumptionfortheproductforbothVDDand11 OUT2VDD3V13.63.6Figure11.ConfigurationforICCurrentConsumptionREVISIONChangesfromOriginal(September2011)toRevision Addedthebq294582DevicetoProduction ChangesfromRevisionA(November2011)toRevision Changedthebq294504DevicetoProduction Addedthebq294512 Addedthebq294592 AddedasecondICCTest ChangedFaultDetectionDelayTimeinbq2945x4TestMode ChangesfromRevisionB(February2012)toRevision Addedthebq294515DevicetoProduction Addedthebq294524DevicetoProduction Addedthebq294532DevicetoProduction Addedthebq294572DevicetoProduction ChangedOvervoltageDetection AddedOutputVoltageVersusOutputCurrent ChangedTimingforCustomerTestMode PACKAGEOPTIONPACKAGEOPTIONPACKAGINGOrderableStatusPackageType EcoMSLPeakOpTempide6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40to6&noSb/Br)CU-40toAddendumOrderablePackageEcoMSLPeakOpTempTop-Side6&noSb/Br)CU-40to(1)ThemarketingstatusvaluesaredefinedasACTIVE:Product mendedfornewLIFEBUY:TIhasannouncedthatthedevicewillbedis,andalifetime-buyperiodisin mendedfornewdesigns.Deviceisinproductiontosupportexistingcustomers,butTIdoes mendusingthispartinanewPREVIEW:Devicehasbeenannouncedbutisnotinproduction.SamplesmayormaynotbeOBSOLETE:TIhasdistheproductionofthe(2)Econ-Thennedeco-friendlyclassification:Pb-(RoHS),Pb-(RoHSExempt),orGreen(RoHS&noSb/Br)-pleasecheck informationandadditionalproductcontentdetails.TBD:ThePb-/Green nhasnotbeenPb-(RoHS):TI'sterms"Lead- "or"Pb-"meansemiconductorproductsthatarecompatiblewiththecurrentRoHSrequirementsforall6substances,includingtherequirementthatleadnotexceed0.1%byweightinhomogeneousmaterials.Wheredesignedtobesolderedathightemperatures,TIPb-productsaresuitableforuseinspecifiedlead-processes.Pb-(RoHSExempt):ThiscomponenthasaRoHSexemptionforeither1)lead-basedflip-chipsolderbumpsusedbetweenthedieandpackage,or2)lead-baseddieadhesiveusedbetweenthedieandleadframe.ThecomponentisotherwiseconsideredPb-(RoHScompatible)asdefinedabove.Green(RoHS&noSb/Br):TIdefines"Green"tomeanPb-(RoHScompatble),andofBromine(Br)andAntimony(Sb)basedflameretardants(BrorSbdonotexceed0.1%byweightinhomogeneousmaterial)(3)MSL,PeakTemp.--TheMoistureSensitivityLevelratingaccordingtotheJEDECindustrystandardclassifications,andpeaksolder(4)MultipleTop-SideMarkingswillbeinsideparentheses.OnlyoneTop-SideMarkingcontainedinparenthesesandseparatedbya"~"willappearonadevice.IfalineisindentedthenitisacontinuationofthepreviouslineandthetwocombinedrepresenttheentireTop-SideMarkingforthatdevice.ImportantInformationandDier:TheinformationprovidedonthispagerepresentsTI'sknowledgeandbeliefasofthedatethatitisprovided.TIbasesitsknowledgeandbeliefoninformationprovidedbythirdparties,andmakesnorepresentationorwarrantyastotheaccuracyofsuchinformation.Effortsareunderwaytobetterintegrateinformationfromthirdparties.TIhastakenandcontinuestotakereasonablestepstoproviderepresentativeandaccurateinformationbutmaynothaveconducteddestructivetesting