SD6008 锂电池充电保护IC

SOT23-5SD6008SD6008SD6008SD60081/9Rev1.0OneCellLithium-ion/PolymerBatteryProtectionICGENERALDESCRIPTIONisaspacingsavingsinglechiplithium-ion/polymerbatteryprotectionIC.IntegratingpowerMOSFETandonlytwoexternalcomponentsmakestheprotectionboardhighlycompact.hasfullprotectionincludingoverchargingvoltageprotection,overdischargingprotection,overcurrentprotection,shortprotectionandovertemperatureprotection.Theverylowstandbycurrentdrainslittlecurrentfromthecellwhileinstorage.isavailableinpackage.PINDESCRIPTIONFEATURES·IntegratelowRdsonPowerMOSFET·Ultra-smallSOT23-5Package·Over-temperatureProtection·Two-stepsOvercurrentprotection·High-accuracyVoltageDetection·LowCurrentConsumption-OperationMode:2.6μAtyp.-Power-downMode:1.5μAtyp.RoHSCompliantandLead(Pb)FreeAPPLICATIONSOne-CellLithium-ionBatteryPackLithium-PolymerBatteryPackFigure1.TypicalApplicationCircuitFigure2.PINConfigurationSD6008Shouding(Note:Donotexceedtheselimitstopreventdamagetothedevice.Exposuretoabsolutemaximumratingconditionsforlongperiodsmayaffectdevicereliability.)PARAMETERVALUEUNITVDDinputpinvoltage-0.3to6VVMinputpinvoltage-6to10VOperatingAmbientTemperature-40to85°CMaximumJunctionTemperature125°CStorageTemperature-55to150°CLeadTemperature(Soldering,10sec)300°CPowerDissipationatT=25°C0.4WPackageThermalResistance(JunctiontoAmbient)θJA250°C/WPackageThermalResistance(JunctiontoCase)θJC130°C/WESD2000VSD6008Rev1.0SD6008Shouding=27oC,VDD=3.7VunlessotherwisespecifiedParameterSymbolTestConditionMinTypMaxUnitDetectionVoltageOverchargeProtectionVoltageVOCV4.254.304.35VOverchargeProtectionReleaseVoltageVOCR4.044.104.16VOverdischargeProtectionVoltageVODV2.32.42.5VOverdischargeProtectionReleaseVoltageVODR2.93.03.1VChargerDetectionVoltageVCHA-0.07-0.12-0.2VDetectionCurrentClass1OverdischargeProtectionCurrentIOCI1VDD=3.5V2.133.9AClass2OverdischargeProtectionCurrentIOCI2VDD=3.5V579ALoadShort-CircuitingDetectionISHORTVDD=3.5V101825AOverchargeProtectionCurrentICHAVDD=3.5V2.133.9ACurrentConsumptionCurrentConsumptioninNormalOperationIOPEVD`D=3.5VVM=0V2.64μACurrentConsumptioninpowerDownIPDNVDD=2.0VVMpinfloating1.5μAVMInternalResistanceInternalResistancebetweenVMandVDDRVMDVD=3.5VVM=1.0V320kΩInternalResistancebetweenVMandGNDRVMSVDD=2.0VVM=1.0V100kΩFETonResistanceEquivalentFETonResistanceRDS(ON)VDD=3.6VIVM=1.0A404255mΩOverTemperatureProtectionOverTemperatureProtectionTSHD+120oCOverTemperatureRecoveryDegreeTSHD-100oCDetectionDelayTimeOverchargeVoltageDetectionDelayTimetOCV130mSOverdischargeVoltageDetectionDelayTimetODV40mSOverdischargeCurrent1DelayTimetIOV1VDD=3.5V10mSSD6008Rev1.0SD6008Shouding=3.5V3mSLoadShort-CircuitingDetectionDelayTimetSHORTVDD=3.5V150uSDescriptionofOperationOverchargeProtectionWhenthevoltageofthebatterycellexceedstheoverchargeprotectionvoltage(VOCV)beyondtheoverchargedelaytime(tOCV)period,chargingisinhibitedbyturningoffpowerMOSFET.Theoverchargeconditionisreleasedintwocases:1.Thevoltageofthebatterycellbecomeslowerthantheoverchargereleasevoltage(VOCR)throughself-discharge.2.Thevoltageofthebatterycellfallsbelowtheoverchargeprotectionvoltage(VOCV)andaloadisconnected.WhenthebatteryvoltageisaboveVOCV,theoverchargeconditionwillnotreleaseevenaloadisconnectedtothepack.OverdischargeProtectionWhenthevoltageofthebatterycellgoesbelowtheoverdischargeprotectionvoltage(VODV)beyondtheoverdischargedelaytime(tODV)period,dischargingisinhibited.Inhibitionofdischargingisimmediatelyreleasedwhenthevoltageofthebatterycellbecomeshigherthanoverdischargereleasevoltage(VODR).OvercurrentProtectionWhenthedischargingcurrentbecomeshigherthanaspecifiedOverdischargeCurrentandbeyondoverdischargecurrentdelaytimeperiod,dischargingisinhibited.InhibitionofdischargingisimmediatelyreleasedwhentheloadisreleasedortheimpedancebetweenEB+andEB-islargerthan500kΩ.Theprovidesthreeovercurrentdetectionlevels(3A,7Aand18A)withthreeovercurrentdelaytime(tIOV1,tIOV2andtSHORT)correspondingtoeachovercurrentdetectionlevel.OverTemperatureProtectionWhenICtemperaturebecomeshigherthanaspecifiedvalue,willturnoffPowerMOSFETwhateverindischargingorchargingcondition.Indischargingcondition,InhibitionofdischargingisreleasedwhentemperaturelowerthanOverTemperatureRecoveryDegreeandloadalsoreleased.Inchargingcondition,Inhibitionofchargingisreleasedwhentemperaturelowerthanovertemperaturerecoverydegreeandchargeralsoremoved.OverChargingCurrentProtectionWhenthechargingcurrentbecomeshigherthandischargeprotectionCurrent(ICHA)andbeyondoverdischargecurrentdelaytimeperiod,chargingisinhibited.Inhibitionofchargingisimmediatelyreleasedwhenthechargerisremoved.ChargerdetectionafterOverdischargeWhenoverdischargeoccurs,dischargingisinhibited.Ho