Microchip TC54电压检测器

Microchip'sTC54seriesofvoltagedetectorsaredesignedto

supersedeavarietyofdiscretecomparatorcircuitsandbipolar

technologyvoltagedetectors.

Thesevoltagedetectorsareespeciallysuitedforapplicationin

batterypoweredsystemsbecauseoftheirextremelylow1µA

operatingcurrent.Eachpartislaserprogrammedtothedesired

trippointvoltageovertherangeof1.1Vto6.0Vin100mVsteps.

Forcompletedesignflexibility,complementaryoropen-drain

outputversionsareavailable.TC54packageoptionsinclude

surfacemountSOT-23AandSOT-89orthrough-holeTO-92

types.AN779UsingtheMicrochipTC54VoltageDetectorINTRODUCTIONOPERATIONMicrochip'sTC54seriesofvoltagedetectorsaredesignedtoTheTC54equivalentcircuitisshowninFigure1.Theinternalsupersedeavarietyofdiscretecomparatorcircuitsandbipolarprecisiontemperature-compensatedreferenceandcomparatortechnologyvoltagedetectors.circuitconsistentlymonitorVINforanunder-voltagecondition.Whensuchaconditionoccurs,theoutputisfo