bq24195 I2C Controlled 2.5-A /4.5-A Single Cell USB ...

1 VBUSPMIDOTGD+D STATSDASCLINTCESWBTSTREGNPGNDSYSBATILIMT S1TS2+ 17 Vbq24195 LPhoneTabletBATTERYQ1 CSD25302Q2C510 FmC1C21 HmQ3Si2312 DSSYSA dapter +Power PadAdapter Q2Si2312 DSR1333W( max) FmRecommended C1(min) = 20 F (bq24195L) or 60 F ( bq24195 )mmbq24195C710 FmProductFolderSample &BuyTechnicalDocumentsTools &SoftwareSupport &Communitybq24195, bq24195 LSLUSB97A OCTOBER2012 REVISEDDECEMBER2014bq24195I2C SingleCell USB/AdapterChargerwith V at 1 A V at A SynchronousBoostOperation11 Features HighEfficiencySwitchModeCharger IntegratedCurrentSensing (bq24195L)or ( bq24195 )

2 Fast BootstrapDiodeCharging InternalLoopCompensation 92%ChargeEfficiencyat 2 A, 90%at 4 A Safety SynchronousBoostConverterin BatteryBoost BatteryTemperatureSensingand ChargingModeSafetyTimer V at 1 A (bq24195L)or V at A ThermalRegulationand ThermalShutdown( bq24195 ) InputSystemOver-VoltageProtection 94% 1 A, MOSFETOver-CurrentProtection91%at A ChargeStatusOutputsfor LEDor HostProcessor HighestBatteryDischargeEfficiencywith 12-m Low BatteryLeakageCurrentand SupportBatteryDischargeMOSFETup to 9-A DischargeShippingModeCurrent x QFN-24 Package SingleInputUSB-compliant/AdapterCharger USBH ostor ChargingPort D+/D-Detection2 ApplicationsCompatibleto PowerBankfor Smartphone.

3 Tablet InputVoltageand CurrentLimitSupports TabletPC and PortableAudioSpeaker InputCurrentLimit:100 mA, 150 mA, 500 mA, PortableMediaPlayers900 mA, A, A, 2 A and 3 A InternetDevices 17-VInputOperatingVoltageRange SupportAll Kindsof Adapterwith InputVoltage3 DescriptionDPMR egulationThe bq24195L,bq24195are highly-integratedswitch- NarrowVDC(NVDC)PowerPathManagementmodeba tterychargemanagementand systempower Instant-onWorkswith No Batteryor Deeplypathmanagementdevicesfor singlecell Li-IonandDischargedBatteryLi-polymerbatt eryin a widerangeof powerbank,tabletand otherportabledevices.

4 IdealDiodeOperationin BatterySupplementModeDeviceInformation(1 ) Low ProfilePARTNUMBERPACKAGEBODYSIZE(NOM)Ind uctorbq24195 AutonomousBatteryChargingwith or withoutVQFN(24) x (1) For all availablepackages,see the orderableaddendumat BatteryChargeEnablethe end of the datasheet. BatteryChargePreconditioning ChargeTerminationand Recharge HighAccuracy(0 C to 125 C) 7% ChargeCurrentRegulation 2% OutputRegulationin BoostMode HighIntegration PowerPathManagement SynchronousSwitchingMOSFETs1An IMPORTANTNOTICEat the end of this datasheetaddressesavailability,warranty, changes,use in safety-criticalapplications,intellectual propertymattersand , bq24195 LSLUSB97A OCTOBER2012 Applicationand Description(Continued).

5 310 Pin Configurationand Deviceand Mechanical,Packaging,and RevisionHistoryChangesfromOriginal(Octob er2012)to RevisionAPage AddedHandlingRatingtable,FeatureDescript ionsection,DeviceFunctionalModes,Applica tionandImplementationsection,PowerSupply Recommendationssection,Layoutsection,Dev iceand DocumentationSupportsection,and Mechanical,Packaging,and ChangedVSLEEPZ, VBAT_DPL_HY, VBATGD, ICHG_20pct, VSHORT, IADPT_DPM, KILIM, VBTST_REFRESHin Added 40 C to 85 to AddedREG00[6:3]= 0110( ) or 1011( ) to Addeda MIN valueof 435 to DeletedTJunction_REGMIN and ChangedVOTG_ILIMto ChangedChargingCurrentin Table3.

6 17 ChangedREG09[5:4]to REG08[5:4]in ChangedHostModeand ChangedChargeCurrentControlRegisterREG02 Bit 0 descriptionand note ..292 SubmitDocumentationFeedbackCopyright 2012 2014,TexasInstrumentsIncorporatedProduct FolderLinks:bq24195bq24195 Lbq24195, OCTOBER2012 REVISEDDECEMBER20145 Description(Continued)Its low impedancepowerpathoptimizesswitch-modeop erationefficiency,reducesbatterycharging timeandextendsbatterylife I2C serialinterfacewith chargingand systemsettingsmakesthe devicea truly devicesupportsa widerangeof inputsources,includingstandardUSBhostpor t,USBchargingport andhighpowerDC set the defaultinputcurrentlimit,the bq24195L,bq24195detectsthe inputsourcefollowingthe The bq24195 / bq24195 Lare compliantwith and inputcurrentand bq24195L.

7 Bq24195supportsbatteryboostoperationby V on PMIDpin with minimumcurrentof A (bq24195L)or A ( bq24195 ).The powerpathmanagementregulatesthe systemslightlyabovebatteryvoltagebut doesnot (programmable).Withthis feature,the systemmaintainsoperationevenwhenthebatte ryis completelydepletedor inputcurrentlimit or voltagelimit is reached,the powerpathmanagementautomaticallyreducest he chargecurrentto the systemloadcontinuesto increase,the powerpathdischargesthe batteryuntilthe systempowerrequirementis devicesinitiateand completea automaticallydetectsthe batteryvoltageand chargesthe batteryin threephases.

8 Pre-conditioning,constantcurrentand theend of the chargingcycle,the chargerautomaticallyterminateswhenthe chargecurrentis belowa presetlimit inthe full batteryfallsbelowthe rechargethreshold,the batterychargingandsystemoperation,includ ingnegativethermistormonitoring,charging safetytimerand over- thermalregulationreduceschargecurrentwhe nthe junctiontemperatureexceeds120 C (programmable).The STAT outputreportsthe chargingstatusand any INT immediatelynotifiesthe hostwhena fault bq24195and bq24195 Lare availablein a 24-pin, 2012 2014,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback3 ProductFolderLinks.

9 Bq24195bq24195 LSTATSCLSDAVBUSPMIDREGNPGNDPGNDSYSSYSOTG INT45678915161718222324123 BATBAT1314 BTSTSWSW19202110 11 12 VBUSD+D ILIMTS1TS2bq24195 LCEbq24195bq24195, bq24195 LSLUSB97A OCTOBER2012 Pin Configurationand FunctionsRGEP ackage24-PinVQFNWithExposedThermalPad(To pView)Pin internaln-channelreverseblockMOSFET(RBFE T)is connectedbetweenVBUSand PMIDVBUS1,24 Pwith VBUSon 1- F ceramiccapacitorfromVBUSto PGNDand placeit as closeas possibleto IC. (Referto ApplicationInformationSectionfor details)IPositiveline of the USBdataline +/D basedUSBhost/chargingport detectionincludesdatacontactD+2detection (DCD)and primarydetectionin of the USBdataline +/D basedUSBhost/chargingport detectionincludesdataD 3contactdetection(DCD)and primarydetectionin the pull up rail via 10-k.

10 LOWOSTAT4indicateschargein fault conditionoccurs,STATD igitalpin blinksat 1 the logicrail througha 10-k the logicrail througha 10-k INT to a logicrail via 10-k INT pin sendsactivelow, 256-uspulseINT7to host to reportchargerdevicestatusand selectionpin duringbuckmode,and activehigh enablepin buckmodewith USBhost,whenOTG= High,IIN limit = 500 mA and whenOTG= Low,IIN limit = 100 boostmodeis activatedwhenthe REG01[5:4]= 10 and OTGpin is ChargeEnablepin. Batterychargingis enabledwhenREG01[5:4]= 01 and CE pin = pin mustbeCE9pulledhigh or sets the maximuminputcurrentlimit by regulatingthe ILIM voltageat 1 V.