MH189Hall-effectsensorisatemperaturestable,stress-resistantsensor.Superiorhigh-temperatureperformanceismadepossiblethroughadynamicoffsetcancellationthatutilizeschopper-stabilization.Thismethodreducestheoffsetvoltagenormallycausedbydeviceovermolding,temperaturedependencies,andthermalstress.TheMH189includesthefollowingonasinglesiliconchip:voltageregulator,Hallvoltagegenerator,small-signalamplifier,chopperstabilization,Schmitttrigger,andashortcircuitprotectedPull-upresistoroutput.AdvancedCMOSwaferfabricationprocessingisusedtotakeadvantageoflow-voltagerequirements,componentmatching,verylowinput-offseterrors,andsmallcomponentgeometries.Thisdevicerequiresthepresenceofbothsouthandnorthpolaritymagneticfieldsforoperation.Inthepresenceofasouthpolarityfieldofsufficientstrength,thedeviceoutputsensoron,andonlyswitchesoffwhenanorthpolarityfieldofsufficientstrengthispresent.TheMH189isratedforoperationbetweentheambienttemperatures 40 Cand85 CfortheEtemperaturerange,and 40 Cto125 CfortheKtemperaturerange.Thetwopackagestylesavailableprovidemagneticallyoptimizedsolutionsformostapplications.PackageSOisanSOT-23,aminiaturelow-profilesurface-mountpackage,whilepackageUAisathree-leadultraminiSIPforthrough-holemounting.FeaturesandBenefitsChopperstabilizedamplifierstageOptimizedforBLDCmotorapplicationsNewminiaturepackage/thin,highreliabilitypackageOperationdownto3V100%testedat125℃forK.Customsensitivity/Temperatureselectionareavailable.ApplicationsHightemperatureFanmotor3phaseBLDCmotorapplicationSpeedsensingPositionsensingCurrentsensingRevolutioncoun 应用：流量计，咖啡机．完全替代EW512MH189(超高灵敏度HallEffectSensor)●高温DCFAN的应用●3向BLDC马达.●速度传感器.●位置传感器.●旋转记数●水流量计的记数 优点MH189(超高灵敏度HallEffectSensor)●Silicon科技，敏感度VS.温度佳●斩波科技使敏感度分布稳定●内建上拉电阻,可pintopinEW系列●100%高温测试,帮助客户应用面广●抗电气干扰能力佳●高ESD保护性价比高●性价比高 MH189pintopinEW512应用于流量传感器,咖啡机等.