《FS277规格书.pdf》由会员分享，可在线阅读，更多相关《FS277规格书.pdf（4页珍藏版）》请在金锄头文库上搜索。
1、031813Page1of4Rev.1.00MH277SpecificationsComplementaryOutputHallEffectLatchTheMH277isanintegratedLatchingHalleffectsensorwithoutputdrivers,mainlydesignedforelectroniccommutationofbrushlessDCfans.ThisICincludesanonchipvoltageregulator,reversebatteryDiode,Hallplate,amplifier,comparator,andapairofcompl
2、ementaryopen-collectoroutputs(DO,DOB).Itprovidesaone-chipsolutionfordrivingtwo-coilbrushlessDCcoolingfans.AnovelVCCrecoverycircuitallowsthecompletetwo-wirefancontrolcircuittofitinasmallfourpinPBfreepackage.Whilethemagneticfluxdensity(B)islargerthantheoperatepoint(BOP),DOwillturnon(low),andmeanwhileD
3、OBwillturnoff(high).EachoutputislatcheduntilBislowerthanthereleasepoint(BRP),andthenDOandDOBwillchangestate.ForaDCfanapplication,itissometimesnecessarytotestthereversedpowerconnectioncondition.Theinternalprotectiondiodeonlyprotectsthechipsideandnotthecoilside.Ifitisnecessarytoprotectthecoilsidethena
4、ddoneexternaldiodetotheapplicationcircuittoblockthereversecurrentfromthecoil-side.Seeapplicationcircuitexampleonpage3.FeaturesandBenefitsOn-chipHallsensorwithtwodifferentsensitivityandhysteresissettings3.5Vto20Voperatingvoltage400mA(avg.)outputsinkcurrentBuilt-inprotectingdiodeonlyforchipreversepowe
5、rconnecting-20to+85CoperatingtemperatureLowcostandhighsensitivityHallSensorApplicationsPositionSensingDual-coilBrush-lessDCMotorDual-coilBrush-lessDCFanRevolutionCountingSpeedMeasurementFunctionalDiagramREGAmpControlLogicVccDoDoBGNDHallSensor031813Page2of4Rev.1.00MH277SpecificationsComplementaryOutp
6、utHallEffectLatchOrderingInformationPartNo.TemperatureSuffixPackageTypeMH277EVK-AE(-20to+85)VK(4-pinTO-92S)MH277EVK-BE(-20to+85)VK(4-pinTO-92S)MH277EVK-CE(-20to+85)VK(4-pinTO-92S)AbsoluteMaximumRatingsAt(Ta=25)CharacteristicsValuesUnitSupplyvoltage,(Vcc)20VReverseVccPolarityVoltage,(Vcc)-20VMagnetic
7、fluxdensityUnlimitedGaussOutput“on”current,(IOUT)Continuous400mAHold500Peak(StartUp)700Operatingtemperaturerange,(Ta)-20to+85Storagetemperaturerange,(Ts)-55to+150MaximumJunctionTemp,(Tj)150ThermalResistance(JA)227/W(JC)49/WPackagePowerDissipation,(PD)550mWXXXXXXXXX-XCompanyNameandProductCategoryTemp
8、eratureCodePartnumberSortingCodePackagetypeCompanyNameandProductCategoryMH:MSTHallEffect/MP:MSTPowerMOSFETPartnumber181,182,183,184,185,248,249,276,477,381,381F,381R,382.Ifpart#isjust3digits,theforthdigitwillbeomitted.TemperaturerangeE:85,I:105,K:125,L:150PackagetypeUA:TO-92S,VK:TO-92S(4pin),VF:TO-9
9、2S(5pin),SO:SOT-23,SQ:QFN-3,ST:TSOT-23,SN:SOT-553,SF:SOT-89(5pin)Sorting,Blank.031813Page3of4Rev.1.00MH277SpecificationsComplementaryOutputHallEffectLatchC1：10/25uFC2、C3：1uF/25VD1：1N4001R1：5KR2、R3：50Q1：MMBT4401ElectricalSpecificationsDCOperatingParameters：Ta=+25,VCC=12VParametersTestConditionsMinTyp
10、MaxUnitsSupplyVoltage,(Vcc)Operating3.520.0VSupplyCurrent,(Icc)BBrp71425.0mAOutputZenerBreakdown,(Vz)Vz4555VOutputSaturationVoltage,(VSat)Iout=400mA,Vce=14V600.0950.0mVOutputLeakageCurrent,(Ioff)Vout=12V,Vce=12V0.110.0AOutputRiseTime,(TR)Vcc=14V,L1=L2=820,CL=20PF3.010.0SOutputFallingTime,(TF)Vcc=14V
11、,L1=L2=820,CL=20PF0.31.5SSwitchTimeDifferential,(Ts)Vcc=14V,L1=L2=820,CL=20PF3.010SOperatePoint,(BOP)“A”Grade550Gauss“B”Grade570Gauss“C”Grade100GaussReleasePoint,(BRP)“A”Grade-50-5Gauss“B”Grade-70-5Gauss“C”Grade-100GaussHysteresis,(BHYS)AB”CGrade70GaussTypicalapplicationcircuitD1L1L2C1MH277VCCSNSNR1
12、FGVccDoDoBGNDC2C3R2R3031813Page4of4Rev.1.00MH277SpecificationsComplementaryOutputHallEffectLatchSensorLocationwithPinoutandPackagedimensionVKPackage(To-924pins)HallChiplocation277XXXNOTES:1).Controllingdimension:mm2).Leadsmustbefreeofflashandplatingvoids3).Donotbendleadswithin1mmofleadtopackageinterface.4).PINOUT:Pin1VCCPin2DoPin3DoBPin4GNDOutputPinAssignment1234VccDoDoBGND277XXX12341.751.35HallSensorLocationMark
