MH182: 雙極性高靈敏度相位檢測　　　　　　　　　　　　　　　　　　　　　　　　　OrderingNumberMH-182SignalOutputnonTemperature-40℃-125℃PackageUA/SOVoltagerange3V-24VOutputcurrent2.5mASensitivity70GStatusNownoteHighSensitivityCMOSHallEffectLatch MH182Hall-effectsensorisatemperaturestable,stress-resistantlatch.Superiorhigh-temperatureperformanceismadepossiblethroughadynamicoffsetcancellationthatutilizeschopper-stabilization.Thismethodreducestheoffsetvoltagenormallycausedbydeviceovermolding,temperaturedependencies,andthermalstress.TheMH182includesthefollowingonasinglesiliconchip:voltageregulator,Hallvoltagegenerator,small-signalamplifier,chopperstabilization,Schmitttrigger,andashortcircuitprotectedopen-drainoutput.AdvancedCMOSwaferfabricationprocessingisusedtotakeadvantageoflow-voltagerequirements,componentmatching,verylowinput-offseterrors,andsmallcomponentgeometries.Thisdevicerequiresthepresenceofbothsouthandnorthpolaritymagneticfieldsforoperation.Inthepresenceofasouthpolarityfieldofsufficientstrength,thedeviceoutputlatcheson,andonlyswitchesoffwhenanorthpolarityfieldofsufficientstrengthispresent.TheMH182isratedforoperationbetweentheambienttemperatures 40 Cand85 CfortheEtemperaturerange,and 40 Cto125 CfortheKtemperaturerange.Thetwopackagestylesavailableprovidemagneticallyoptimizedsolutionsformostapplications.PackageSOisanSOT-23,aminiaturelow-profilesurface-mountpackage,whilepackageUAisathree-leadultraminiSIPforthrough-holemounting.Thepackagetypeisinalead(Pb)-freeversionwasverifiedbythirdpartyLab.FeaturesandBenefitsChopperstabilizedamplifierstageOptimizedforBLDCmotorapplicationsNewminiaturepackage/thin,highreliabilitypackageOperationdownto3.0V100%testedat125℃forK.Customsensitivity/Temperatureselectionareavailable.ApplicationsHightemperatureFanmotor3phaseBLDCmotorapplicationSpeedsensingPositionsensingCurrentsensingRevolutioncounting 應(yīng)用:電機(jī),電動鞋刷,電動剃須刀，電動牙刷，玩具，麻將機(jī)，繡花機(jī)，風(fēng)扇等