应4.2V移动电源充电IC-ME4057ASPG封装SOP81ALithiumIonBatteryLinearChargerME4057SeriesME4057isacompletectant-current/ctantvoltagelinearchargerforsinglecelllithium-ionbatteries.Withathermallyenhanced8-PINSOPpackageonthebottomandlowexternalcomponentcountmaketheME4057ideallysuitedforportableapplicati.FurthermoretheME4057isspecificallydesignedtoworkwithinUSBpowerspecificati.NoexternalsenseresistorisneededandnoblockingdiodeisrequiredduetotheinternalPMOSFETarchitecture.Thermalfeedbackregulatesthechargecurrenttolimitthedietemperatureduringhighpoweroperationorhighambienttemperature.Thechargevoltageisfixedat4.2V/4.34V,andthechargecurrentcanbeprogrammedexternallywithasingleresistor.TheME4057automaticallyterminatesthechargecyclewhenthechargecurrentdropsto1/10ththeprogrammedvalueafterthefinalfloatvoltageisreached.Whentheinputsupply(walladapterorUSBsupply)isremovedtheME4057automaticallyentersalowcurrentstatedroppingthebatterydraincurrenttolessthan2mu;A.TheME4057canbeputintoshutdownmodereducingthesupplycurrentto55mu;A.OtherfeaturesincludeBatterytemperaturemonitor,under-voltagelockout,automaticrechargeandtwostatuspinstoindicatechargeandchargetermination.Features●Protectionofbatterycellreverseconnection●Programmablechargecurrentupto1A●NoMOSFETsenseresistororblockingdioderequired●CompletelinearChargerinSOP8PackageforsingleCellLithium-IonBatteries.●Ctant-Current/Ctant-VoltageoperationwiththermalregulationtomaximizeRateWithoutriskofoverheating.●Preset4.2V/4.34Vchargevoltagewith±1%accuracy●AutomaticRecharge●TwoStatusIndicationforChargestatus,nobatteryandbatteryfailureindicators标签：  深圳市移动电源充电ic 深圳市移动电源充电ic厂家深圳市移动电源充电ic厂家供应用于锂电池的移动电源充电IC