复位芯片IMP809810数据手册

KeyFeaturesApplications3-PinMicrocontrollerPowerSupplySupervisoruEmbeddedcontrollersuBatteryoperatedsystemsuIntelligentinstrumentsuWirelesscommunicationsystemsuPDAsandhandheldequipmentuImprovedMaximMAX809/MAX810replacement—Lowersupplycurrent…6µA—80%lowermaximumsupplycurrentuMonitor5V,3.3Vand3Vsuppliesu140msmin.resetpulsewidthuActive-lowresetvalidwith1.1Vsupply(IMP809)uSmall3-pinSOT-23packageuNoexternalcomponentsuSpecifiedoverfulltemperaturerange—–40°Cto105°CBlockDiagramsIMP809(IMP810)VCCVCCVCCGNDGNDRESET(RESET)809/10_01.epsμPRESETInputTheIMP809/IMP810are3.0V,3.3Vand5.0Vpowersupplysupervisorcir-cuitsoptimizedforlow-powermicroprocessor(µP),microcontroller(µC)anddigitalsystems.TheIMP809/810areimproveddrop-inreplacementsfortheMaximMAX809/810andfeature60%lowersupplycurrent.Aresetsignalisissuedifthepowersupplyvoltagedropsbelowapresetresetthresholdandisassertedforatleast140msafterthesupplyhasrisenabovetheresetthreshold.TheIMP809hasanactive-lowRESEToutputthatisguaranteedtobeinthecorrectstateforVCCdownto1.1V.TheIMP810hasanactive-highRESEToutput.TheresetcomparatorisdesignedtoignorefasttransientsonVCC.LowsupplycurrentmakestheIMP809/IMP810idealforuseinportableandbatteryoperatedequipment.TheIMP809/IMP810areavailableinacompact3-pinSOT23package.Sixvoltagethresholdsareavailabletosupport3Vto5Vsystems:IMP809,IMP8IMP809,IMP81100POWERMANAGEMENTResetThresholdSuffixVoltage(V)L4.63M4.38J4.00T3.08S2.93R2.63IMP,Inc.SanJose,CA408-432-9100/(IMP810)GND(RESET)RESETVCC312809/10_02.epsSOT23PackageMarking2PartNumber1ResetThreshold(V)TemperatureRangePin-Package(XXLotCode)IMP809ActiveLOWResetIMP809LEUR-T4.63–40°Cto+105°C3-SOT23AAXXIMP809MEUR-T4.38–40°Cto+105°C3-SOT23ABXXIMP809JEUR-T4.00–40°Cto+105°C3-SOT23CWXXIMP809TEUR-T3.08–40°Cto+105°C3-SOT23ACXXIMP809SEUR-T2.93–40°Cto+105°C3-SOT23ADXXIMP809REUR-T2.63–40°Cto+105°C3-SOT23AFXXIMP810ActiveHIGHResetIMP810LEUR-T4.63–40°Cto+105°C3-SOT23AGXXIMP810MEUR-T4.38–40°Cto+105°C3-SOT23AHXXIMP810JEUR-T4.00–40°Cto+105°C3-SOT23AIXXIMP810TEUR-T3.08–40°Cto+105°C3-SOT23AJXXIMP810SEUR-T2.93–40°Cto+105°C3-SOT23AKXXIMP810REUR-T2.63–40°Cto+105°C3-SOT23ALXX2Notes:1.TapeandReelpackagingisindicatedbythe-Tdesignation.2.Devicesmayalsobemarkedwithfullpartnumber:809L,810Metc.XXreferstolot.RelatedProductsIMP809IMP810IMP811IMP812Max.SupplyCurrent15µA15µA15µA15µAPackagePins3344ManualRESETinputnnPackageTypeSOT-23SOT-23SOT-143SOT-143Active-HIGHRESEToutputnnActive-LOWRESEToutputnn3IMP809,IMP8IMP809,IMP81100ParameterSymbolConditionsMinTypMaxUnitsInputVoltage(VCC)RangeVCCTA=0°Cto70°C1.15.5VTA=–40°Cto105°C1.25.5SupplyCurrentICCTA=–40°Cto85°CVCC5.5V,L/M/J915µATA=–40°Cto85°CVCC3.6V,R/S/T610TA=85°Cto105°CVCC5.5V,L/M/J25TA=85°Cto105°CVCC3.6V,R/S/T20ResetThresholdVTHLdevicesTA=25°C4.564.634.70VTA=–40°Cto85°C4.504.75TA=85°Cto105°C4.404.86MdevicesTA=25°C4.314.384.45TA=–40°Cto85°C4.254.50TA=85°Cto105°C4.164.56JdevicesTA=25°C3.934.004.06TA=–40°Cto85°C3.894.10TA=85°Cto105°C3.804.20TdevicesTA=25°C3.043.083.11TA=–40°Cto85°C3.003.15TA=85°Cto105°C2.923.23SdevicesTA=25°C2.892.932.96TA=–40°Cto85°C2.853.00TA=85°Cto105°C2.783.08RdevicesTA=25°C2.592.632.66TA=–40°Cto85°C2.552.70TA=85°Cto105°C2.502.76ResetThresholdStability30ppm/°CVCCtoResetDelayVCC=VTHtoVTH-100mV20µsResetActiveTimeoutPeriodVOLTA=–40°Cto85°C140240560msTA=85°Cto105°C100840LowRESETOutputVoltage(IMP809)VOLVCC=VTHmin.,ISINK=1.2mA,IMP809R/S/T0.3VVCC=VTHmin.,ISINK=3.2mA,IMP809L/M/J0.4VCC1.1V,ISINK=50µA0.3HighRESETOutputVoltage(IMP809)VOHVCCVTHmax.,ISOURCE=500µA,IMP809R/S/T0.8VCCVVCCVTHmax.,ISOURCE=800µA,IMP809L/M/JVCC-1.5LowRESETOutputVoltage(IMP810)VOLVCC=VTHmax.,ISINK=1.2mA,IMP810R/S/T0.3VVCC=VTHmax.,ISINK=3.2mA,IMP810L/M/J0.4HighRESETOutputVoltage(IMP810)VOH1.8VVCCVTHmin.,ISOURCE=150µA0.8VCCVAbsoluteMaximumRatingsPinTerminalVoltagewithRespecttoGroundVCC.................................–0.3Vto6.0VRESET,RESET.........................–0.3Vto(VCC+0.3V)InputCurrentatVCC...................20mAOutputCurrent:RESET,RESET.........20mARateofRiseatVCC....................100V/µsPowerDissipation(TA=70°C)..........320mW(Derate4mW/°Cabove70°C)OperatingTemperatureRange..........–40°Cto105°CStorageTemperatureRange.............–65°Cto160°CLeadTemperature(soldering,10sec).....300°CElectricalCharacteristicsThesearestressratingsonlyandfunctionaloperationisnotimplied.ExposuretoabsolutemaximumratingsforprolongedtimeperiodsmayaffectdevicereliabilityUnlessotherwisenotedVCCisoverthefullvoltagerange,TA=–40°Cto105°C.TypicalvaluesatTA=25°C,VCC=5VforL/M/Jdevices,VCC=3.3VforT/SdevicesandVCC=3VforRdevices.Notes:1.ProductiontestingdoneatTA=25°C.Over-temperaturespecificationsguaranteedbydesignonly.2.‘R‘E‘S‘E‘ToutputisactiveLOWfortheIMP809andRESEToutputisactiveHIGHfortheIMP8104IMP809,IMP8IMP809,IMP81100PinDescriptionsPinNumberNameFunction1GNDGround2RESETRESETisassertedLOWifVCCfallsbelowtheresetthresholdandremainsLOWforthe(IMP809)240mstypicalresettimeoutperiod(140msminimum)afterVCCexceedsthethreshold.2RESETRESETisassertedHIGHifVCCfa