压力传感器-磁传感器--速度传感器-流量传感器-转速传感器--电流传感器2

1Publicationdate:April2009SPC00019AEBDATASHEETPartNo.PackageCodeNo.AN48841BSMINI-5DBAN48841B2SPC00019AEBContents„Overview…………………………………………………………………………………………………………….3„Features……………………………………………………………………………………………………………..3„Applications…………………………………………………………………………………………………………3„Package…………………………………………………………………………………………………………….3„Type………………………………….………………………………………………………………………………3„BlockDiagram……………….…………………………………………………………………………………….4„PinDescriptions…………………………………………………………………………………………………….4„AbsoluteMaximumRatings……………………………………………………………………………………….5„OperatingSupplyVoltageRange…………….…………………………………………………………………..5„AllowableVoltageRange………………………………………………………………………………………….5„ElectricalCharacteristics………………………………………………………………………………………….6„ElectricalCharacteristics(Referencevaluesfordesign)………………………………………………………7„TechnicalData……………………………………………………………………………………………………..8yPD⎯Tadiagram…………………………………………………………………………………………………8„UsageNotes……………………………………….……………………………………………………………….9„CautiononUseofHallICs……………………….……………………………………………………………….10AN48841B3SPC00019AEBAN48841BLowcurrentconsumption,highsensitivityCMOSHallICOperatesonAlternatingMagneticField(low-speedrotationforlockdetection)„OverviewAN48841BisaHallIC(amagneticsensor)whichhas2timesormoresensitivityandalowcurrentconsumptionofaboutonefiftiescomparedwithourconventionalone.InthisHallIC,aHallelement,aoffsetcancelcircuit,anamplifiercircuit,asampleandholdcircuit,aSchmidtcircuit,andoutputstageFETareintegratedonasinglechiphousedinasmallpackagebyICtechnique.„FeaturesyHighsensitivity(8mTmax)duetooffsetcancelcircuitandanewsampleandholdcircuit.ySmallcurrentbyusingintermittentaction.(averagesupplycurrent:56μAtyp.samplingcycle:670μstyp.)ySmallpackage.(SMD)yCMOSinverteroutput.(nopull-upresistance)„ApplicationsyMagneto-electricconversionswitch.„Packagey5pinPlasticSmallSurfaceMountPackage(SMINIType).„TypeyBi-CMOSIC.AN48841B4SPC00019AEB„BlockDiagram42CLKON/OFFcontrolGNDVCCSampleandholdSwichHallelementOUT53N.C.1N.C.Amplifier„PinDescriptionsDescriptionTypePinnamePinNo.OutputpinOutputOUT5SupplypinPowersupplyVCC4N.C.—N.C3GroundpinGroundGND2N.C.—N.C.1AN48841B5SPC00019AEB„AbsoluteMaximumRatings„OperatingsupplyvoltagerangeNotesUnitRatingSymbolParameterANo.⎯mA5ICCSupplycurrent2*3°C−55to+125TstgStoragetemperature5*3°C−25to+75ToprOperatingambienttemperature4*2mW60PDPowerdissipation3*1V5.4VCCSupplyvoltage1NotesUnitRangeSymbolParameter*V2.5to5.25VCCSupplyvoltagerangeNote)*:Thevaluesundertheconditionnotexceedingtheaboveabsolutemaximumratingsandthepowerdissipation.0GNDNoteUnitRangePinnamePinNo.*V–0.3to(VCC+0.3)OUT5*V2Note)*:(VCC+0.3)V≤5.4V.Notes)*1:Thevaluesundertheconditionnotexceedingtheaboveabsolutemaximumratingsandthepowerdissipation.*2:ThepowerdissipationshownisthevalueatTa=75°Cfortheindependent(unmounted)ICpackagewithoutaheatsink.WhenusingthisIC,refertothe•PD-Tadiagraminthe„TechnicalDataanddesigntheheatradiationwithsufficientmarginsothattheallowablevaluemightnotbeexceededbasedontheconditionsofpowersupplyvoltage,load,andambienttemperature.*3:Exceptforthepowerdissipation,operatingambienttemperature,andstoragetemperature,allratingsareforTa=25°C.„AllowableVoltageRangeNotes)AllowablecurrentandvoltagerangesarelimitrangeswhichdonotresultindamagestothisIC,andICoperationisnotguaranteedwithintheselimitranges.Voltagevalues,unlessotherwisespecified,arewithrespecttoGND.Donotapplyexternalcurrentsorvoltagestoanypinnotspecificallymentioned.Note)AbsolutemaximumratingsarelimitvalueswhichdonotresultindamagestothisIC,andICoperationisnotguaranteedattheselimitvalues.AN48841B6SPC00019AEB„ElectricalCharacteristicsNote)Ta=25°C±2°Cunlessotherwisespecified.—μs850670490VCC=3VTsamIntermittentoperationtime(1)VCC=5VVCC=5V,IO=–2mAB=–8.0mTVCC=5V,IO=2mAB=8.0mTVCC=3V,5V*2μA300100ICC2(AVE)Supplycurrent(2)—*1mT–0.5—BLHOperatingmagneticfluxdensity(2)–89*1mT8—0.5VCC=3V,5VBHLOperatingmagneticfluxdensity(1)12—V0.30.1—VCC=3V,IO=2mAB=8.0mTVOL1OutputvoltageLow(1)3—V0.30.1—VOL2OutputvoltageLow(2)4—V—2.92.7VCC=3V,IO=–2mAB=–8.0mTVOH1OutputvoltageHigh(1)5—V—4.94.7VOH2OutputvoltageHigh(2)6*2μA70.056.0—VCC=3VICC(AVE)Supplycurrent(1)78—μs790623456VCC=5VTsam2Intermittentoperationtime(2)10LimitsTypUnitMaxNotesMinConditionsSymbolParameterBNo.Notes)*1:SymbolBHLshowstheoperatingmagneticfluxdensityatwhichoutputlevelischangedfromhightolow,andSymbolBLHshowstheoperatingmagneticfluxdensityatwhichoutputlevelischangedfromlowtohigh.*2:ICC(AVE)={ICC(ON)×t(ON)+ICC(OFF)×t(OFF)}/{t(ON)+t(OFF)}.AN48841B7SPC00019AEB*μs939600329Ta=–25°Cto75°C,VCC=5Vt2(OFF)Stoptime2Ta=–25°Cto75°C,VCC=5VTa=–25°Cto75°C,VCC=3VVCC=5VVCC=3V*μs3723t2(ON)Operationtime29*mA2.11.4ICC(ON)Supplycurrent(3)—19*mT—7—VCC=3V,5VBWHysteresiswidth1112*μA—2.5—VCC=3VICC(OFF)Supplycurrent(4)13*mA3.52.4—ICC2(ON)Supplycurrent(5)14*μA—3.7—VCC=5VICC2(OFF)Supplycurrent(6)15*μs422610t(ON)Operationtime16*μs1030644258Ta=–25°Cto75°C,VCC=3Vt(OFF)Stoptime1718ReferencevaluesTypUnitMaxNotesMinConditionsSymbolParameterBNo.IccIcc(ON)Icc(OFF)t(ON)=26μst(OFF)=644μst„ElectricalCharacteristics(Referencevaluesfordesign)Note)Ta=25°C±2°Cunlessotherw