锂电保护芯片-DW01

1DS-Rev-1.5_cnDW01AOne-cellLithiumBatteryProtectionIC◆◆GeneralDescription概述TheDW01AbatteryprotectionICisdesignedtoprotectlithium-ion/polymerbatteryfromdamageordegradingthelifetimeduetoovercurrentforone-celllithium-ion/polymerbatterypoweredsystems.suchascellularphones。Theultra-smallpackageandlessrequiredexternalcomponentsmakeitidealtointegratetheDW01Aintothelimitedspaceofbatterypack.Theaccurate±50mVoverchargingdetectionvoltageensuressafeandfullutilizationcharging.Theverylowstandbycurrentdrainslittlecurrentfromthecellwhileinstorage。DW01A电池保护IC是专为保护锂离子/锂聚合物电池损坏，或因过电流使用而降低寿命之锂电池保护系统。诸如蜂窝电话。DW01A使用超小型封装，减少所需的外部组件;非常适用于空间有限的电池组。准确的±50mV的过充电检测电压，确保安全和充分充电。及储存时极低的待机电流。◆◆Features特点High-accuracyvoltagedetectioncircuit高精度电压检测电路Overchargedetectionvoltage过充电检测电压3.6Vto4.4VAccuracy精度±50mVOverchargereleasevoltage过充电解除电压3.6Vto4.4VAccuracy精度±50mVOverdischargedetectionvoltage过放电检测电压2.0Vto3.0VAccuracy精度±100mVOverdischargereleasevoltage过放电解除电压2.0Vto3.4VAccuracy精度±100mVDischargeovercurrentdetectionvoltage过放过电流检测电压0.05Vto0.3VAccuracy精度±30mVLoadshort-circuitingdetectionvoltage负载短路检测电压1.1VAccuracy精度±100mVDetectiondelaytimesaregeneratedbyaninternalcircuit(externalcapacitorsareunnecessary)内置延迟电路，不需要外接电容即具有延迟保护的功能Overchargedetectiondelaytime过充电检测延迟时间Typical.典型值80msOverdischargedetectiondelaytime过放电检测延迟时间Typical.典型值100msDischargeovercurrentdetectiondelaytime过放放电流检测延迟时间Typical.典型值10msLoadshort-circuitingdetectiondelaytime负载短路检测延迟时间Typical.典型值300μsDW01AOne-cellLithiumBatteryProtectionIC2DS-Rev-1.5_cnHighvoltagetoleranceisusedforchargerconnectionpins,VMandCOpinsareabsolutemaximumrating＝28V充电器充电端子VM端子与CO端子采用高压元器件设计，额定电压值为28V0Vbatterychargefunctionavailable可选择向0V电池充电功能或是禁止0V电池充电功能Wideoperationtemperaturerange宽工作温度范围-40~+85℃Lowcurrentconsumption低消耗电流Operationmode正常操作Typ.2.4μAMax.6.0μA(25℃)Standbymode待机电流Green-mode休眠功能Max.0.1μA(25℃)Self-recoveryfunction自恢复功能Max.3.0μA(25℃)Smallpackage超小型封装SOT-23-6LLead-free/Greenproduct无铅/绿色产品封装◆◆Applications应用ProtectionICforOne-CellLithium-ion单节锂电池保护电路Lithium-PolymerRechargeableBatteryPacks锂离子电池保护电路DW01AOne-cellLithiumBatteryProtectionIC3DS-Rev-1.5_cn◆◆BlockDiagram内部结构图◆◆AbsoluteMaximumRatings绝对最大额定值(无特殊标注时Vss=0V，Ta=25℃unlessotherwisespecified)Item项目Symbol符号Rating参数范围Unit单位InputvoltagebetweenVDDandVSS电源电压VDDVSS=-0.3~VSS=+12VVMpininputvoltageVM端输入电压VMVDD-28~VDD+0.3VDOpinoutputvoltageDO端输出电压VDOVSS-0.3~VDD+0.3VCOpinoutputvoltageCO端输出电压VCOVDD-28~VDD+0.3VElectricalstaticdischarge静电放电电压HBM2KVMM200VOperatingTemperatureRange工作温度范围TOPR-40~+85℃StorageTemperatureRange储存温度范围TSTG-55~+125℃Remarks:AnyoperationconditionexceedstheabsolutemaximumratingswilldamagetheIC.附注：任何超过绝对最大额定值的操作条件，并不能保证芯片处于正常工作状态，并且会造成芯片劣化与损坏。DW01AOne-cellLithiumBatteryProtectionIC4DS-Rev-1.5_cn◆◆ProductNameList产品电压版本ProductOverchargeDetectionVoltage[Vdet1]OverchargeReleaseVoltage[Vrel1]OverdischargeDetectionVoltage[Vdet2]OverdischargeReleaseVoltage[Vrel2]DischargeovercurrentDetectionVoltage[Vdet3]0VBatteryChargeFunctionModeSelection产品名称过充电检测电压过充电解除电压过放电检测电压过放电解除电压放电过电流检测电压0V充电休眠功能DW01A4.3V±0.050V4.1V±0.050V2.4V±0.100V3.0V±0.100V140mV±30mVAvailable允许Auto-recovery自恢复◆◆ElectricalCharacteristics电气参数(无特殊标注时TA=25℃unlessotherwisespecified)Item项目Symbol符号TestCondition测试条件Min.最小值Typ.典型值Max.最大值Unit单位OperatingvoltagebetweenVDD&VSSVDD与VSS端工作电压VDDop1.5-10.0VOperatingvoltagebetweenCO&VMCO与VM端工作电压VVMop1.5-25.0VMinimumoperatingvoltagefor0Vcharging0V充电最小电池电压VstVDD-VM,VDD-VSS=0V--1.2VDischargingovercurrentreleaseresistance过电流解除电阻RshortVDD=3.6,VM=1.0V3050100KCOpinNchONvoltageCONchON电压VCOL-0.40.5VCOpinPchONvoltageCOPchON电压VCOHVDD-0.1VDD-0.02-VDOpinNchONvoltageDONchON电压VDOL-0.20.5VDOpinPchONvoltageDOPchON电压VDOHVDD-0.1VDD-0.02-VCurrentconsumption正常操作消耗电流IDDVDD=3.5V,VM=0V1.22.46.0uAOverdischargecurrentconsumption(Self-recovery)过放消耗电流IDOXVDD=2.0V1,83.0uADW01AOne-cellLithiumBatteryProtectionIC5DS-Rev-1.5_cnDETECTIONVOLTAGE检测电压Item项目Symbol符号TestCondition测试条件Min.最小值Typ.典型值Max.最大值Unit单位Overchargedetectionvoltage过充电检测电压Vdet1R1=1004.2504.3004.350VOverchargereleasevoltage过充电解除电压Vrel1R1=1004.0504.1004.150VOverchargehysteresisvoltage过充电滞后电压Vhys1R1=100Vhys1=Vdet1-Vrel1-0.200-VOverdischargedetectionvoltage过放电检测电压Vdet2VM=0V,R1=1002.3002.4002.500VOverdischargereleasevoltage过放电解除电压VrelR1=1002.9003.0003.100VOverdischargereleasevoltage2过放电解除电压2Vrel2'R1=100,R2=1.0k,VM=Vchg2.3002.4002.500VDischargingovercurrentdetectionvoltage过放电电流检测电压Vdet3VDD=3.0V,R2=1.0k0.1100.1400.170VShortdetectionvoltage负载短路检测电压VshortVDD=3.0V1.301.100.90V◆◆ElectricalCharacteristics电气参数(无特殊标注时TA=25℃unlessotherwisespecified)DELAYTIME延迟时间Item项目Symbol符号TestCondition测试条件Min.最小值Typ.典型值Max.最大值Unit单位Overchargedetectiondelaytime过充电检测延迟时间TVdet1VDD=3.8V→4.5V3580150msOverchargereleasedelaytime过充电解除延迟时间TVrel1VDD=4.5V→3.8V-0.7-msOverdischargedetectiondelaytime过放电检测延迟时间TVdet2VDD=3.2V→2.2V50100200msOverdischargereleasedelaytime过放电解除延迟时间TVrel2VDD=2.2V→3.3V-0.7-msDischargingovercurrentdetectiondelaytime过放电电流检测延迟时间TVdet3VDD=3.0V,VM=0V→0.2V51020msDischargingovercurrentreleasedelaytime过放电电流解除延迟时间TVrel3VDD=3.0V,VM=0.2V→0V-0.7