DW01AM-DATASHEET

1GENERALGENERALGENERALGENERALDESCRIPTIONDESCRIPTIONDESCRIPTIONDESCRIPTIONTheDW01AMbatteryprotectionICisdesignedtoprotectlithium-ion/polymerbatteryfromdamageordegradingthelifetimeduetooverchargeoverdischargeand/orovercurrentforone-celllithium-ion/polymerbatterypoweredsystems,suchascellularphones.Theultra-smallpackageandlessrequiredexternalcomponentsmakeitidealtointegratetheDW01AMintothelimitedspaceofbatterypack.Theaccurate±50Mvoverchargingdetectionvoltageensuressafeandfullutilizationcharging.Theverylowstandbycurrentdrainslittlecurrentfromthecellwhileinstorage.FEATURESFEATURESFEATURESFEATURES�ReductioninboardsizeduetominiaturepackageSOT23-6�Ultra-lowQuiescentat3μA(Vcc=3.9V)�Ultra-LowPower-DownCurrentat0.1μA(Vcc=2.0V).�PrecisionOverchargeProtectionVoltage4.30V±50mV�Overdischargewithself-recovery�TwoDetectionlevelsforOvercurrentProtection�LoadDetectionFunctionduringOverchargeMode�Delaytimesaregeneratedbyinternalcircuits�NoexternalcapacitorsrequiredAPPLICATIONAPPLICATIONAPPLICATIONAPPLICATION�ProtectionICforOne-CellLithium-Ion/LithiumpolymerBatteryPackPACKAGEPACKAGEPACKAGEPACKAGEMARKINGMARKINGMARKINGMARKINGANDANDANDANDORDERINGORDERINGORDERINGORDERINGINFORMATIONINFORMATIONINFORMATIONINFORMATIONDDDDeviceeviceeviceeviceMarkingMarkingMarkingMarkingDDDDeviceeviceeviceeviceDDDDeviceeviceeviceevicePackagePackagePackagePackageDW01AMDW01AMSOT23-6PINPINPINPINDESCRIPTIODESCRIPTIODESCRIPTIODESCRIPTIONNNN....DW01AMDW01AMDW01AMDW01AMONEONEONEONECELLCELLCELLCELLLITHIUM-ION/POLYMERLITHIUM-ION/POLYMERLITHIUM-ION/POLYMERLITHIUM-ION/POLYMERBATTERYBATTERYBATTERYBATTERYPROTECTIONPROTECTIONPROTECTIONPROTECTIONICICICIC123654GNDOCVCCTDODCSDW01AMDW01AMDW01AMDW01AM2PINPINPINPINNUMNUMNUMNUMPINPINPINPINNAMENAMENAMENAMEPINPINPINPINFUNCTIONFUNCTIONFUNCTIONFUNCTION1111ODODODODMOSFETgateconnectionpinfordischargecontrol2222CSCSCSCSInputpinforcurrentsense,chargerdetect3333OCOCOCOCMOSFETgateconnectionpinforchargecontrol4444TDTDTDTDTestpinforreducedelaytime5555VCCVCCVCCVCCPowersupply,througharesistor(R1)6666GNDGNDGNDGNDGroundpinFunctionalFunctionalFunctionalFunctionalBlockBlockBlockBlockDiagramDiagramDiagramDiagramTypicalTypicalTypicalTypicalApplicationApplicationApplicationApplicationCircuitCircuitCircuitCircuitDW01AMDW01AMDW01AMDW01AM3ABSOLUTEABSOLUTEABSOLUTEABSOLUTEMAXIMUMMAXIMUMMAXIMUMMAXIMUMRATINGSRATINGSRATINGSRATINGS(T(T(T(TAAAA====25252525℃))))SymbolSymbolSymbolSymbolParameterParameterParameterParameterRatingsRatingsRatingsRatingsUnitUnitUnitUnitVCCInputvoltagebetweenVCCandGNDGND-0.3toGND+10VVOCOCoutputpinvoltageVCC-18toVCC+0.3VVODODoutputpinvoltageVCC-0.3toVCC+0.3VVCSCSinputpinvoltageVCC-18toVCC+0.3VTOPOperatingTemperatureRange-30to+85℃TSTStorageTemperatureRange-55to+125℃NoteNoteNoteNote：DW01AM(B)containsacircuitthatwillprotectitfromstaticdischarge;butpleasetakespecialcarethatnoexcessivestaticelectricityorvoltagewhichexceedsthelimitoftheprotectioncircuitwillbeappliedtoit.ElectricalElectricalElectricalElectricalCharacteristicsCharacteristicsCharacteristicsCharacteristics(T(T(T(TCCCC====25252525℃))))SymbolSymbolSymbolSymbolParameterParameterParameterParameterTestTestTestTestConditionsConditionsConditionsConditionsMinMinMinMinTypTypTypTypMaxMaxMaxMaxUnitUnitUnitUnitICCSupplyCurrentVCC=3.9V46µAIPDPower-DownCurrentVCC=2.0V0.20.3µAVOCPOverchargeProtectionVoltage4.254.304.35VVOCROverchargeReleaseVoltage4.054.104.15VVODPOverdischargeProtectionVoltage2.32.42.5VVODROverdischargeReleaseVoltage2.93.03.1VVOIP(VOI1)OvercurrentProtectionVoltage120150180mVVOIP(VOI2)ShortCurrentProtectionVoltageVCC=3.9V1.201.351.50VTOCOverchargeDelayTimeVCC=3.6Vto4.4V80100140msTODOverdischargeDelayTimeVCC=3.6Vto2.2V22msTOI1OvercurrentDelayTime(1)VCC=3.0V51015msTOI2OvercurrentDelayTime(2)VCC=3.0V1050usVCHAChargerDetectionThresholdVoltage-1.2-0.7-0.2VVDHODPinOutput“H”VoltageVCC-0.1VCC-0.02VVDLODPinOutput“L”Voltage0.20.5VVCHOCPinOutput“H”VoltageVCC-0.1VCC-0.02VVCLOCPinOutput“L”Voltage0.350.5VDescriptionDescriptionDescriptionDescriptionofofofofOperationOperationOperationOperation1.1.1.1.OverchargeOverchargeOverchargeOverchargeProtectionProtectionProtectionProtectionWhenthevoltageofthebatterycellexceedstheoverchargeprotectionvoltage(VOCP)beyondtheoverchargedelaytime(TOC)period,chargingisinhibitedbyturningoffofthechargecontrolMOSFET.Theoverchargeconditionisreleasedintwocases:1)Thevoltageofthebatterycellbecomeslowerthantheoverchargereleasevoltage(VOCR)throughself-discharge.2)Thevoltageofthebatterycellfallsbelowtheoverchargeprotectionvoltage(VOCP)andaloadisDW01AMDW01AMDW01AMDW01AM4connected.WhenthebatteryvoltageisaboveVOCP,theoverchargeconditionwillnotreleaseevenaloadisconnectedtothepack.2.2.2.2.OverdischargeOverdischargeOverdischargeOverdischargeProtectionProtectionProtectionProtectionWhenthevoltageofthebatterycellgoesbelowtheoverdischargeprotectionvoltage(VODP)beyondtheoverdischargedelaytime(TOD)period,dischargingisinhibitedbyturningoffthedischargecontrolMOSFET.Thedefaultofoverdischargedelaytimeis10ms.Inhibitionofdischargingisimmediatelyreleasedwhenthevoltageofthebatterycellbec