全极低功耗霍尔开关SS249使用手册

1V2.10May1,2012#V2.10May1,2012Packages3pinSOT23(suffixSO)3pinSIP(suffixUA)FunctionalBlockDiagramFeaturesandBenefitsSolid-StateReliabilitymuchbetterthanreedSwitchOmnipolar,outputswitcheswithabsolutevalueofNorthorSouthpolefrommagnetOperationfrom3.5Vto24VHighsensitivityfordirectreedswitchreplacementapplicationsApplicationExamples一Solidstateswitch一Speeddetection— Interrupter— MagnetproximitysensorforreedswitchreplacementGeneralDescription:TheSS249OmnipolarHalleffectsensorICisfabricatedfrommixedsignalCMOStechnology.Itincorporatesadvancedchopper-stabilizationtechniquestoprovideaccurateandstablemagneticswitchpoints.TheoutputtransistoroftheSS249willbelatchedon(BOP)inthepresenceofasufficientlystrongSouthorNorthmagneticfieldfacingthemarkedsideofthepackage.Theoutputwillbelatchedoff(BRP)intheabsenceofamagneticfield.TypicalApplicationCircuitTypicalThree-WireApplicationCircuitAutomotiveandSevereEnvironmentProtectionCircuitR1:100SEC'spole-independentsensingtechniqueallowsforoperationwitheitheranorthpoleorsouthpolemagnetorientation,enhancingthemanufacturabilityofthedevice.Thestate-of-the-arttechnologyprovidesthesameoutputpolarityforeitherpoleface.Itisstronglyrecommendedthatanexternalbypassbeconnected(incloseproximitytotheHallsensor)betweenthesupplyandgroundofthedevicetoreducebothexternalnoiseandnoisegeneratedbythechopper-stabilizationtechnique.Thisisespeciallytrueduetotherelativelyhighimpedanceofbatterysupplies.InternalTimingCircuitSample&OutputPinDefinitionsandDescriptionsSOTPinSIPPinNameTypeFunction11VDDSupplySupplyVoltagepin23OUTOutputOpenDrainOutputpin32GNDGroundGroundpinTable1:PindefinitionsanddescriptionsAbsoluteMaximumRatingsParameterSymbolValueUnitsSupplyVoltage(operating)VDD6VSupplyCurrentIDD5mAOutputVoltageVOUT6VOutputCurrent【out5mAOperatingTemperatureRangeTa-40to85°CStorageTemperatureRangeTs-50to150°CESDSensitivity4000VTable2:AbsolutemaximumratingsExceedingtheabsolutemaximumratingsmaycausepermanentdamage.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.DCElectricalCharacteristicsDCOperatingParameters:TA=25°C,VDD=2.75V.ParameterSymbolTestConditionsMinTypMaxUnitsOperatingVoltageVDDOperating2.535.5VSupplyCurrentIDDAverage5PAOutputCurrentIOUT1.0mASaturationVoltageVSATIOUT=1mA0.4VAwakemodetimeTAWOperating175PSSleepmodetimeTSLOperating70mSTable3:DCelectricalcharacteristicsMagneticCharacteristicsOutputVoltage(V)MagneticFlux(Gauss)OperatingParameters:TA=25°C,VDD=2.75VDCSS249ParameterSymbolMinTypeMaxUnitsOperatingPointbop-+/-35+/-60GsReleasePointBRP+/-5+/-21-GsHysteresisBHYST-14-GsTable4:MagneticSpecificationsESDProtectionHumanBodyModel(HBM)testsaccordingto:Mil.Std.883Fmethod3015.7ParameterSymbolLimitValuesUnitNotesMinMaxESDVoltageVESD±4kV4V2.10May1,2012SS2494OSOmnipolarHighSensitivityMicropowerHallSwitchPerformanceCharacteristicsTypicalMagneticSwitchpointsversusVddTypicalMagneticSwitchpointsversusTemperatureA12=rTy}>icalCurrentConsumptionversusT&mperature,Vdc^3Vu^ldmn曲udQ4.llal」Jll0SfeipUirrenKuA)AwakeCUirenl5V2.10May1,2012SS2494OSOmnipolarHighSensitivityMicropowerHallSwitchSECELECTRONICSINC6V2.10May1,2012SS2494OSOmnipolarHighSensitivityMicropowerHallSwitch#V2.10May1,2012SS2494OSOmnipolarHighSensitivityMicropowerHallSwitchUniqueFeaturesCMOSHallICTechnologyThechopperstabilizedamplifierusesswitchedcapacitortechniquestoeliminatetheamplifieroffsetvoltage,which,inbipolardevices,isamajorsourceoftemperaturesensitivedrift.CMOSmakesthisadvancedtechniquepossible.TheCMOSchipisalsomuchsmallerthanabipolarchip,allowingverysophisticatedcircuitrytobeplacedinlessspace.Thesmallchipsizealsocontributestolowerphysicalstressandlesspowerconsumption.InstallationCommentsConsidertemperaturecoefficientsofHallICandmagnetic,aswellasairgapandlifetimevariations.Observetemperaturelimitsduringwavesoldering.TypicalIRsolder-reflowprofile:一NoRapidHeatingandCooling.— RecommendedPreheatingformax.2minutesat150°C— RecommendedReflowingformax.5secondsat240°CESDPrecautionsElectronicsemiconductorproductsaresensitivetoElectroStaticDischarge(ESD).AlwaysobserveElectroStaticDischargecontrolprocedureswheneverhandlingsemiconductorproducts.#V2.10May1,2012SS2494OSOmnipolarHighSensitivityMicropowerHallSwitchPackageUA,3-PinSIP:7V2.10May1,2012SS2494OSOmnipolarHighSensitivityMicropowerHallSwitch2.13t—1.87-*#V2.10May1,2012SS2494OSOmnipolarHighSensitivityMicropowerHallSwitch#V2.10May1,2012SS2494OSOmnipolarHighSensitivityMicropowerHallSwitchSensorLocation0.44±0.0r亠0.39±0.01*I°+!g」ActiveAreaDepth:0.84(Noin)#V2.10May1,2012SS2494OSOmnipolarHighSensitivityMicropowerHallSwitchNotes:1+|『龙1) .Controllingdimension:mm;2) .Lesdsmustbefreeofflashandplatingvoids;3) .Donotbendleadswithin1mmofleadtopackageinterface;4) .PINOUT:Pin1VDDPin2GNDPin3Output#V2.10May1,2012SS2494OSOmnipolarHighSensitivityMicropowerHallSwitch-T1.272.54#V2.10May1,2012SS2494OSOmnipolarHighSensitivityMicropowerHallSwitchPackageSOT,3-PinSOT-23:End^ewNotes:1) .PINCUT:PiiilVDDPiii20u^jutPiii3GND2) .AlldittiensicitEaneinirdllimeters;0.350.50so.SOT-23PackageHallLocation:*—1.50—►1.408V2.10May1,2012SS2494OSOmnipolarHighSensitivityMicropowerHallSwitch#V2.10May1,2012SS2494OSOmnipolarHighSensitivityMicropowerHallSwitchOrderingInformationPartNo.Pb-freeTemperatureCodePackageCodePackingSS249ESOTYES-40°Cto85°CSOT-237-in.reel,3000pieces/reelSS249EUAYES-40°Cto85°CTO-92Bulk,1000pieces/bagSS249KSOTYES-40°Cto125°CSOT-237-in.reel,3000pieces/reelSS249KUAYES-40°Cto125°CTO-92Bulk,1000pieces/bagSS249LSOTYES-40°Cto150°CSOT-237-in.reel,3000pieces/reelSS249LUAYES-40°Cto150°CTO-92Bulk,1000pieces/bag#V2.10May1,2012。