MP26123_r1.01

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1、MP261232A,24VInput,600kHz2/3-CellSwitchingLi-ionBatteryChargerTheFutureofAnalogICTechnologyDESCRIPTIONFEATURESTheMP26123isamonolithicDC-DCstep-Charges2-or3-CellLi-IonBatteryPacksdownswitchingchargerfor2-or3-cellLi-ionWideOperatingInputRangebatterypacks.Ithasanintegratedhigh-sidePro

2、grammableChargingCurrentofupto2ApowerMOSFETcanoutputuptoa2Acharge±0.75%VBATTAccuracycurrent.Italsohaspeak-current–modecontrol0.2ΩIntegratedPowerMOSFETforfastloopresponseandeasycompensation.Upto90%EfficiencyTheMP26123usesasenseresistortocontrolaFixed600kHzFrequencyprogrammablecharg

3、ecurrent,andaccuratelyPreconditioningforFullyDepletedBatteriesregulatesthechargecurrentandchargeChargingStatusIndicatorvoltageusingtwocontrolloops.InputSupplyFaultIndicatorTheMP26123hasmultiplefaultconditionThermalShutdownprotectionsthatincludecycle-by-cyclecurrentCycle-by-CycleO

4、ver-CurrentProtectionlimitingandthermalshutdown.OthersafetyBatteryTemperatureMonitorandProtectionfeaturesincludebatterytemperaturemonitoringandprotection,chargestatusindicationandAPPLICATIONSprogrammabletimertoceasethechargingMobileInternetDevicecyclewhentimerout.PortableMediaPlaye

5、rTheMP26123requiresaminimalnumberofNetbookreadily-availableexternalcomponents.Chargerfor2-or3-CellLi-IonBatteriesDistributedPowerSystemsTheMP26123isavailableina4mmx4mm16-pinQFNpackage.ForMPSgreenstatus,pleasevisitMPSwebsiteunderQualityAssurance.“MPS”and“TheFutureofAnalogICTechnolog

6、y”areRegisteredTrademarksofMonolithicPowerSystems,Inc.TYPICALAPPLICATIONMP26123Rev.1.01www.MonolithicPower.com110/28/2011MPSProprietaryInformation.PatentProtected.UnauthorizedPhotocopyandDuplicationProhibited.©2011MPS.AllRightsReserved.MP26123–2A,24VINPUT,600kHz2-3CELLSWITCHINGLI-IONB

7、ATTERYCHARGERORDERINGINFORMATIONPartNumber*PackageTopMarkingFreeAirTemperature(TA)MP26123DRQFN16(4x4mm)M26123-40°Cto+85°C*ForTape&Reel,addsuffix–Z(e.g.MP26123DR–Z)ForRoHScompliantpackaging,addsuffix–LF(e.g.MPMP26123DR–LF–Z)PACKAGEREFERENCEPIN1IDTOPVIEWVINSWBSTTMR16151413VCC112GNDNTC21

8、1CSPA