s8261系列规格书

Rev.1.1SeikoInstrumentsInc.1BATTERYPROTECTIONICforSINGLE-CELLPACKS-8261SeriesTheS-8261seriesarelithium-ion/lithiumpolymerrechargeablebatteryprotectionICsincorporatinghigh-accuracyvoltagedetectioncircuitanddelaycircuit.TheS-8261seriesaresuitableforprotectionofsingle-celllithiumion/lithiumpolymerbatterypacksfromovercharge,overdischargeandovercurrent.Features(1)Internalhighaccuracyvoltagedetectioncircuit•Overchargedetectionvoltage3.9Vto4.4V(applicablein5mVstep)Accuracy:±25mV(+25°C)and±30mV(-5°Cto+55°C)•Overchargehysteresisvoltage0.0Vto0.4V(*1)Accuracy:±25mVTheoverchargehysteresisvoltagecanbeselectedfromtherange0.0Vto0.4Vin50mVstep.*1:Overchargereleasevoltage=Overchargedetectionvoltage-Overchargehysteresisvoltage(whereoverchargereleasevoltage3.8Visprohibited.)•Overdischargedetectionvoltage2.0Vto3.0V(10mVstep)Accuracy:±50mV•Overdischargehysteresisvoltage0.0Vto0.7V(*2)Accuracy:±50mVTheoverdischargehysteresisvoltagecanbeselectedfromtherange0.0Vto0.7Vin100mVstep.*2:Overdischargereleasevoltage=Overdischargedetectionvoltage+Overdischargehysteresisvoltage(whereoverdischargereleasevoltage3.4Visprohibited.)•Overcurrent1detectionvoltage0.05Vto0.3V(10mVstep)Accuracy:±15mV•Overcurrent2detectionvoltage0.5V(fixed)Accuracy:±100mV(2)HighvoltagedeviceisusedforchargerconnectionpinsVMandCOpins:absolutemaximumrating=28V(3)Delaytimes(overcharge:tCU,overdischarge:tDL,overcurrent1:tlOV1,overcurrent2:tlOV2)aregeneratedbyaninternalcircuit.Noexternalcapacitorisnecessary.Accuracy:±20%(4)Three-stepovercurrentdetectioncircuitisincluded.(overcurrent1,overcurrent2,andloadshort-circuiting)(5)Eitherchargefunctionorchargeinhibitionfunctionfor0Vbatterycanbeselected.(6)Chargerdetectionfunctionandabnormalchargecurrentdetectionfunction•TheoverdischargehysteresisisreleasedbydetectingnegativevoltageattheVMpin(-0.7Vtyp.).(Chargerdetectionfunction)•WhentheoutputvoltageoftheDOpinishighandthevoltageattheVMpinisequaltoorlowerthanthechargerdetectionvoltage(-0.7Vtyp.),theoutputvoltageoftheCOpingoeslow.(Abnormalchargecurrentdetectionfunction)(7)Lowcurrentconsumption•Operation3.5μAtyp.7.0μAmax.•Power-down0.1μAmax.(8)Wideoperatingtemperaturerange:-40°Cto+85°C(9)SmallpackageSOT-23-6(6-pin)SNB(B)(6-pin)ApplicationsPackage•Lithium-ionrechargeablebatterypacks•6-PinSOT-23-6(PKGdrawingcode:MP006-A)•Lithiumpolymerrechargeablebatterypacks•6-PinSNB(B)(PKGdrawingcode:BD006-A)BATTERYPROTECTIONICforSINGLE-CELLPACKRev.1.1S-8261Series2SeikoInstrumentsInc.„BlockDiagram+--+VMVSSVDDDPCODOOverchargedetectioncomparatorOvercurrent2detectioncomparator-+-+Outputcontrolcircuit0Vbatterycharge/chargeinhibitioncircuitOverdischargedetectioncomparatorLoadshort-circuitingdetectioncomparatorDividercontrollogicOscillatorcontrolcircuitRVMDRVMSChargerdetectioncircuitOvercurrent1detectioncomparator-+Note:Diodesinthefigureareparasiticdiodes.Figure1BlockDiagramRev.1.1BATTERYPROTECTIONICforSINGLE-CELLPACKS-8261SeriesSeikoInstrumentsInc.3„SelectionGuideNamingofproductmodelnumberModelnumber:S-8261Axxyy-abbreviationcode(3letters)-zzSymbolMeaningDescriptionxxSerialcodeAssignedfromAAtoZZinalphabeticalorder.yyPackageformMD:SOT-23-6BD:SNBzzTapedirectionT2:SOT-23-6TF:SNBModelNo.Over-chargedetectionvoltageOver-chargereleasevoltageOver-dischargedetectionvoltageOver-dischargereleasevoltageOver-current1detectionvoltage0VbatterychargefunctionS-8261AAGMD-G2G-T24.28V0.2V2.3V2.3V0.16VYesS-8261AAHMD-G2H-T24.28V0.2V2.3V2.3V0.08VYesS-8261AAJMD-G2J-T24.325V0.25V2.5V0.4V0.15VNoneModelNo.Over-chargedetectiondelaytimeOver-dischargedetectiondelaytimeOver-current1detectiondelaytimeS-8261AAGMD-G2G-T21.2s144ms9msS-8261AAHMD-G2H-T21.2s144ms9msS-8261AAJMD-G2J-T21.2s144ms9msItispossibletochangethedetectionvoltagesoftheproductotherthanabove.Thedelaytimescanalsobechangedwithintherangelistedbellow.Fordetails,pleasecontactoursalesoffice.DelaytimeSymbolSelectionrangeRemarksOverchargedetectiondelaytimetCU0.15s1.2s4.6sChoosefromtheleft.OverdischargedetectiondelaytimetDL36ms144ms290msChoosefromtheleft.Overcurrent1detectiondelaytimetlOV14.5ms9ms18msChoosefromtheleft.*Valuessurroundedbyboldlinesareusedinstandardproducts.BATTERYPROTECTIONICforSINGLE-CELLPACKRev.1.1S-8261Series4SeikoInstrumentsInc.„PinAssignmentFigure2654321Figure3AbsoluteMaximumRatings(Ta=25°Cunlessotherwisespecified)ParameterSymbolAppliedpinRatingUnitInputvoltagebetweenVDDandVSS*VDSVDDVSS-0.3toVSS+12VInputpinvoltageforVMVVMVMVDD-28toVDD+0.3VOutputpinvoltageforCOVCOCOVM-0.3toVDD+0.3VOutputpinvoltageforDOVDODOVSS-0.3toVDD+0.3VPowerSOT-23-6PD─250mWdissipationSNB(B)PD─90mWOperatingtemperaturerangeTopr─-40to+85°CStoragetemperaturerangeTstg─-55to+125°CNote:AithoughtheICcontainsprotectioncircuitagainststaticelectricity,excessivestaticelectricityorvoltagewhichexceedsthelimitoftheprotectioncircuitshouldnotbeappliedto.*Donotapplypulse-likenoiseofμsorderexceedingtheaboveinputvoltage(VSS+12V).ThenoisecausesdamagetotheIC.1SOT-23-6Topview23645PinNo.SymbolDescription1DOFETgatecontrolpinfordischarge(CMOSoutput)2VMVoltagedetectionpinbetweenVMandVSS(Overcurrentdetectionpin)3