RY4066 独立线性锂离子电池充电器 SOT23-5 深圳恒锐丰科技.pdf

RY4066

StandaloneLinearLi-IonBatteryCharger

Features

•Constant-Current/Constant-VoltageOperation•ChargeStatusOutputPin

withThermalRegulationtoMaximizeCharge•C/10ChargeTermination

RateWithoutRiskofOverheating•ProgrammableChargeCurrentUpto1000mA

•NoMOSFET,SenseResistororBlockingDiode•Preset4.2VChargeVoltagewith±2%Accuracy

Required•6.5VInputOverVoltageProtection

•CompleteLinearChargerforSingleCellLithium-•25µASupplyCurrentinShutdown

IonBatteries•2.9VTrickleChargeThreshold

•ChargesSingleCellLi-IonBatteriesDirectlyfrom•Soft-StartLimitsInrushCurrent

USBPort•Reversebatteryprotection

•ChargeCurrentMonitorOutputforGasGauging•AvailableinESOP8,DFN6-2×2,DFN8-2×2,

•AutomaticRechargeDFN8-3×3andDFN10-2×2Package

Applications

•CellularTelephones•BluetoothApplication

•ChargingDocksandCradles•WearableApplication

GeneralDescription

TheRY4066isacompleteconstant-current/constant-voltagelinearchargerforsinglecelllithium-ionbatteries.Its

packagesandlowexternalcomponentcountmaketheRY4066ideallysuitedforportableapplications.Furthermore,

theRY4066isspecificallydesignedtoworkwithinUSBpowerspecifications.

Noexternalsenseresistorisneeded,andnoblockingdiodeisrequiredduetotheinternalMOSFETarchitecture.

Thermalfeedbackre