AH173isasingle-digital-outputHall-effectsensorwithpull-upresistorforhightemperatureoperation.Thedeviceincludesanon-chipHallvoltagegeneratorformagneticsensing,anamplifiertoamplifyHallvoltage,andacomparatortoprovideswitchinghysteresisfornoiserejection,andanoutputdriverwithapull-upresistor(Rpu).Aninternalband-gapregulatorisusedtoprovidetemperaturecompensatedsupplyvoltageforinternalcircuitsandallowsawideoperatingsupplyrange.Whilethemagneticfluxdensity(B)islargerthanoperatepoint(Bop),theOUTpinturnson(low).IfBmovestowardreleasepoint(Brp),theOUTpinislatched on statepriortoB Brp.WhenB Brp,theOUTpingoesinto off state.