XA4203双节8.4V锂电池充电ic

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1、XA4203StandaloneLi-IonSwitchModeBatteryChargerFeaturessDescription
InputSupplyRange:9.2-14VTheXA4203isacompletebatterycharger
End-Charge-CurrentDetectionOutputcontrollerfortwo(8.4V)cellslithium-ionbatteries.
ConstantSwitchingFrequencyforMinimumTheXA4203providesasmall,simpleandefficientN

2、oisesolutiontofastchargeLi-ionbattery.Anexternal
AutomaticBatteryRechargesenseresistorsetsthechargecurrentwithhigh
AutomaticShutdownWhenInputSupplyisaccuracy.RemovedAninternalresistordividerandprecisionreference
AutomaticTrickleChargingofLowVoltagesetthefinalfloatvoltageto8.4V.Whenthein

3、putBatteriessupplyisremoved,theXA4203automatically
BatteryTemperatureSensingentersalowcurrentsleepmode.
StablewithCeramicOutputCapacitorTheXA4203isavailableintheSOP-8Lpackage.
SOP-8LPackageApplication
ChargingDocks
HandheldInstruments
PortableComputersXA4203TypicalApplication＊Thechargec

4、urrentcanbesetbyIout=0.11V/R3PinAssignmentTopViewTSPROGFBCHRGPIN8765NUMBERPINNAMEFUNCTIONVoltageReferencetoDrive1VREFLED2VINInput3SWSwitchOutput4GNDGroundOpen-DrainChargeStatusfor5CHRGOutput12346FBFeedbackVREFVINSWGND7PROGChargeCurrentProgram8TSTemperatureSenseSOP-8LXA4203AbsoluteMaximu

5、mRatings(Note1)
InputSupplyVoltage(VIN).........................................................................................-0.3V--14V
VCHRG..............................................................................................................-0.3V--7V
VSW....................

6、.....................................................................................................-0.3V--14V
VPROG.....................................................................................................................-0.3V--14V
SWPinCurrent..............................

7、..................................................................................4A
OperatingTemperatureRange……………………………………………………...-40℃～+85℃
LeadTemperature(Soldering10sec.)………………………………………………………..+300℃
StorageTemperatureRange……………………………………………………….-65℃～+150℃
JunctionTemperatur