MH185Hall-effectsensorisatemperaturestable,stress-resistant,micro-powerlatch.Superiorhigh-temperatureperformanceismadepossiblethroughadynamicoffsetcancellationthatutilizeschopper-stabilization.Thismethodreducestheoffsetvoltagenormallycausedbydeviceovermolding,temperaturedependencies,andthermalstress.TheMH185includesthefollowingonasinglesiliconchip:voltageregulator,Hallvoltagegenerator,small-signalamplifier,chopperstabilization,Schmitttrigger,andashortcircuitprotectedopen-drainoutput.AdvancedCMOSwaferfabricationprocessingisusedtotakeadvantageoflow-voltagerequirements,componentmatching,verylowinput-offseterrors,andsmallcomponentgeometries.Thisdevicerequiresthepresenceofbothsouthandnorthpolaritymagneticfieldsforoperation.Inthepresenceofasouthpolarityfieldofsufficientstrength,thedeviceoutputlatcheson,andonlyswitchesoffwhenanorthpolarityfieldofsufficientstrengthispresent.TheMH185isratedforoperationbetweentheambienttemperatures 40 Cand125 CfortheKtemperaturerange.Thetwopackagestylesavailableprovidemagneticallyoptimizedsolutionsformostapplications.PackageSOisanSOT-23,aminiaturelow-profilesurface-mountpackage,whilepackageUAisathree-leadultraminiSIPforthrough-holemounting.Thepackagetypeisinalead(Pb)-freeversionwasverifiedbythirdpartyLab.FeaturesandBenefitsMicro-PowerLatchfunctiondownto8uA(Avg)supplycurrentCMOSHallICTechnologySolid-StateReliabilityBipolarOutputCMOSlatchOperationdownto2.5VHighSensitivityLatchfordirect tworeedswitchapplication replacement.Micro-powerconsumptionforbattery-poweredapplications100%testedat125℃forKspec/WiderangeofworkingTemperatureRoHSisqualifiedby3partylabApplicationsSolidstatehighsensitivitylatchfunctionHighsensitivity,latchfunctionfor 2reedswitch replacementinlowdutycycleapplications.Revolutioncounterinbattery-poweredapplicationsWaterMeterRPMdetector