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Sensingtemperatureandcomparingthattemperaturetopresetlimitsisthebasisforavarietyofproblemsthatdesignersfaceinsystemdesignandprocesscontrol.Conventionaltemperaturesensingsolutions,suchasthermocouplesandRTDs,requireadditionalelectroniccomponentstolinearizeandamplifytheirlow-levelout-puts.Sinceelectroniccomponentsarealreadyinthecircuit,semiconductormanufacturershavebegunadd-ingtemperaturesensingfunctionstotheiramplifierandreferencecircuits.Theresulthasbeenanewgenera-tionofsmall,easy-to-usetemperaturesensingproducts.MAN762ApplicationsoftheTC62XSolid-StateTemperatureSensorsoption(i.e.toturnonafanatthehighlimit)andan‘H’,Author:WesFreemanorHeat,option(i.e.tokeepaheateronuntilthehighMicrochipTechnologyInc.limitisreached).INTRODUCTION8VCCSensingtemperatureandcomparingthattemperature1.2Vt°(PTC)……