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

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 )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-Voltag

bq24195, bq24195L www.ti.com SLUSB97A –OCTOBER 2012–REVISED DECEMBER 2014 5 Description (Continued) Its low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and

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Transcription of 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 )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 )

2 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,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.

3 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).

4 310 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.

5 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,bq24195supportsbatteryboostoper ationby V on PMIDpin with minimumcurrentof A (bq24195L)or A ( bq24195 ).

6 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:pre-conditioning,constantcur rentand 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).

7 The STAT outputreportsthe chargingstatusand any INT immediatelynotifiesthe hostwhena fault bq24195and bq24195 Lare availablein a 24-pin, 2012 2014,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback3 ProductFolderLinks: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.

8 (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 . 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.

9 Batterychargingis enabledwhenREG01[5:4]= 01 and CE pin = pin mustbeCE9pulledhigh or sets the maximuminputcurrentlimit by regulatingthe ILIM voltageat 1 V. A resistoris connectedfromILIMpin toIgroundto set the maximumlimit as IINMAX= (1V/RILIM) actualinputcurrentlimit is the lowerone set by ILIMILIM10 Analogand by I2C REG00[2:0].The minimuminputcurrentprogrammedon ILIMpin is 500 #1. Connecta a resistordividerfromREGNto TS1 to pin is out of and TS2 pins haveto be #2. TS1 and TS2 pins haveto be the positiveterminalof the internalBATFETis connectedbetweenBATandBAT13, 10 F closelyto the 2012 2014,TexasInstrumentsIncorporatedProduct FolderLinks:bq24195bq24195 Lbq24195, OCTOBER2012 REVISEDDECEMBER2014 Pin Functions(continued) internalBATFETis connectedbetweenBATand batteryfalls belowtheSYS15,16 Pminimumsystemvoltage,switch-modeconvert erkeepsSYSabovethe minimumsystemvoltage.

10 (Referto ApplicationInformationSectionfor inductorand capacitorselection.)Powergroundconnectio nfor ,PGNDis connectedto the sourceof the n-PGND17, PCBlayout,connectdirectlyto groundconnectionof inputand outputcapacitorsof the recommendedbetweenpowerPGNDand the analogGNDnearthe IC is connectedto the sourceof the n-channelHSFETand theSW19,20drainof the F bootstrapcapacitorfromSW to side ,the BTSTis connectedto the anodeof the F bootstrapcapacitorfromSW to side ,REGNis connectedto the cathodeof the F (10-Vrating)ceramiccapacitorfromREGNto capacitorshouldbe placedcloseto theIC.


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