ti maxcharge flash 2高效率电荷泵充电方案介绍

TIMaxChargeTMFlash2–高效率电荷泵2018（夏季）中国USBPDMay25,（JessicaLi），德州仪器BMS充 技术的演 ↑ 我 的设 3在终端设备允许的外壳温度下，如何最大化充电电流,快充情况下，电池安全 的考4输入功率限制--5USBBatteryCharging1.20Up-to15Wrequiredfor3AInputInputPowerCommonadaptorConnectorcurrentlimit(<CableIRdrop(300mΩ*5

HighHighHighCurrentHighHigh--MTK5V6LossLoss

At90%+efficiency,a2.5%efficiencyimprovementrepresentsa27%increaseinchargingcurrentfrom2.2Ato2.7Awiththesamelossbudget7TI+-Switch+-FlashMaxChargeMaxChargeGSeries(SwitchModeMaxChargeFlashSeries(Inductor-lessCharger)FixedVoltageAdaptor(5V,9V,AdjustableVoltageAdaptor(3V–9V@20mVChargerOutputisregulatedbyOutputisregulatedbyChargeCurrent1–4A–CC/CVAutonomousfullchargeprofile(precharge,fastcharge,termination)byHostcontrolledchargeprofile(fastcharge)usingadjustableadaptorEfficiencyinHigher(90-Highest(>FlashCharger(<HighCurrent(<HighCurrent(<HighCurrentLowcostorhighHighCurrent(3V–9V)

HigherefficiencyFlashChargerismustLowCurrentHigherefficiencyFlashChargerismustLowCurrentofflash Lowestsystempowerlossfor8Acharging(optimizedforUltrahighefficiency(≈97%@6A)withthebestSupportdualchargerconfigurationforupto10AchargingCompanion(slave)chargerthatcanworkwithTIchargerorVBATOCP,VBATOVP,IBUSOCPHighperformance12bitADCforchargingsystemMeasurecurrent,voltageand ++ ++--𝑽𝒊𝒏=𝑽𝑪𝒇𝒍𝒚+𝑽𝑪𝒇𝒍𝒚=𝑽𝒊𝒏−𝑰𝒊𝒏=𝑰𝒇𝑪𝒍𝒚=II+- +-𝑽𝑪𝒇𝒍𝒚=𝑰𝑪𝒇𝒍𝒚=CFLYisusedasenergytransfer

𝑽𝑩𝑨𝑻=𝑽𝒇𝒍𝒚=𝟐𝑰𝑩𝑨𝑻=𝑰𝒇𝒍𝒚=CircuitPrinciple:Real

IIN CFLY

Gatet-

-

Flyingcap tChargingphase

Flyingcapt

+-

Lossesofcurrentdoublermainlydependsoninthecircuit(R1–R4,RESR…)andcurrentRMSDischargingphase

CurrentRMSvaluefurtherdependsonflyingcapacitorandswitchingfrequency:LargerCFLY,smallerRMS Higherswitchingfrequency,smaller=充电电流=充电电流Phase PhaseCC1/支持USBPDPPS,电压电流TypeCTypeCTypeCMaxCharge™Flash2Note:CurrentandVoltagestepsareexageratedforexampleonly–actualcurrentstepsare

BatteryBatteryCableBatteryCableBatteryBatteryVoltageChargeCurrent

Note:ThevoltageprovidedbytheWallAdapterwillbegreaterthan2xtheoutputbasedonoperating

Linux-basedFlash2chargetotalsolutionhardwarePPS

corechipFlash2PhonesidechargerevaluationboardDualbq25970capable

OptionalParallelUSBPDUSBSwitch

TIDA–01582Switched-CapFastChargeReferenceDesignforUSBPD blePowerSupply TIDA01582人们对快充体验 需求需要提高充电电流和功 –高效，安 PMP40441/MulticellBuck-boostBatteryChargerSystemReferenceDesignforUSBPDTrueUSBCTrueUSBCDRPFullySupportTypeCPDuptoFivevoltageset5/9/12/15/20VPDPPSfrom3-11Vwith8mVstepIECESDandShort-to-VBUSProtectionforCCSmallSizewithLowComponentPowerBankPC&Tools& •DeviceDesignGuide ‒BQ25713DesignFiles: ‒ ‒FullyCompatiblewithallofstandardUSBCproductsduetotheTrueUSBCDRPDesignwithwiderangeandtinystepsSmallsolutionsizeasthenewgenbi-directionalcharger–IMPORTANTNOTICEFORTIDESIGNINFORMATIONANDTexasInstrumentsIncorporated(‘TI”)technical,applicationorotherdesignadvice,servicesorinformation,including,butnotlimitedto,referencedesignsandmaterialsrelatingtoevaluationmodules,(collectively,“TIResources”)areintendedtoassistdesignerswhoaredevelo downloading,accessingorusinganyparticularTIResourceinanyway,you(individuallyor,ifyouareactingonbehalfofa ,your )agreetouseitsolelyforthispurposeandsubjecttothetermsofthisNotice.TI’sprovisionofTIResourcesdoesnotexpandorotherwisealterTI’sapplicablepublishedwarrantiesorwarrantydi ersforTIproducts,andnoadditionalobligationsorliabilitiesarisefromTIprovidingsuchTIResources.TIreservestheYouunderstandandagreethatyouremainresponsibleforusingyourindependentfullandexclusiveresponsibilitytoassurethesafetyofyourapplicationsandcomplianceofyourapplications(andofallTIproductsusedinorforyourYourepresentthat,withrespecttoyourapplications,youhaveallthenecessaryexpertisetocreateandimplementsafeguardsthat(1)anticipatedangerousconsequencesoffailures,(2)monitorfailuresandtheirconsequences,and(3)lessenthelikelihoodoffailuresthatmightcauseharmandtakeappropriateactions.YouagreethatpriortousingordistributinganyapplicationsthatincludeTIproducts,youwillthoroughlytestsuchapplicationsandthefunctionalityofsuchTIproductsasusedinsuchapplications.TIhasnotconductedanytestingotherthanthatspecificallydescribedinthepublished ationforaparticularTIYouareauthorizedtouse,copyandmodifyanyindividualTIResourceonlyinconnectionwiththedevelopmentofapplicationsthatincludetheTIproduct(s)identifiedinsuchTIResource.NOOTHERLICENSE,EXPRESSORIMPLIED,BYESTOPPELOROTHERWISETOANYOTHERTIIN ANDNOLICENSETOANYTECHNOLOGYORIN LECTUALPROPERTYRIGHTOFTIORANYTHIRDPARTYISGRANTEDHEREIN,includingbutnotlimitedtoanypatentright,copyright,maskworkright,orotherinlectualpropertyrightrelatingtoanycombination,machine,orprocessinwhichTIproductsorservicesareused.Informationregardingorreferencingthird-partyproductsorservicesdoesnotconstitutealicensetousesuchproductsorservices,orawarrantyorendorsementthereof.UseofTIResourcesmayrequirealicensefromathirdpartyunderthepatentsorotherinlectualpropertyofthethirdparty,oralicensefromTIunderthepatentsorotherinlectualpropertyofTI.TIRESOURCESAREPROVIDED“ASIS”ANDWITHALLFAULTS.TIDI ALLOTHERWARRANTIESORREPRESENTATIONS,EXPRESSORIMPLIED,REGARDINGTIRESOURCESORUSETHEREOF,INCLUDINGBUTNOTLIMITEDTOANYIMPLIEDWARRANTIESOFMERCHANTABILITY,FITNESSFORAPARTICULARPURPOSE,ANDNON-INFRINGEMENTOFANYTHIRDPARTYIN PROP