tcn75热传感器实现多区温度监测

ThisTechnicalBriefpresentsanexampleofasimple,

multi-zonethermalmonitoringsystemusingtheHard-waremodeoftheMasterSynchronousSerialPort

(MSSP)moduleofaPICmicro

®

microcontroller.The

designusesseveralTCN75thermalsensorsandthe

PIC16LF872microcontroller.

Typicalapplicationswherethisdesignmaybeimple-mentedincludepowersupplies,aquariums,personal

computers,workstations,ovens,hot-swappablether-malsensingsystems,officeelectronics,andelectronic

testequipment.Thistypeofsystemdesignisalsoopti-mumformonitoringtemperaturesintheelectronicsys-temsofvarioushomeappliances,suchasmicrowave

ovens,blenders,toasters,refrigerators,washers,

dryers,vacuumcleaners,andmixers.MTB052Multi-ZoneTemperatureMonitoringwiththeTCN75ThermalSensorAuthor:KenDietznodesareconnectedtothehostprocessorthroughanMicrochipTechnologyInc.I2Cinterface.OnlythreeTCN75sensorsareshown,todemonstratethebinaryaddressingschemeusingpinsA0throughA2.SincetheoriginaldesignwasprototypedusingMicro-INTRODUCTIONchip’sP