搜索
1FEATURESDESCRIPTIONAPPLICATIONSSUPPORTSDEFENSE,AEROSPACE,TMP122-EP–NOVEMBER20081.5°CACCURATEPROGRAMMABLEDIGITALTEMPERATURESENSORSWITHSPI™INTERFACE2•DigitalOutput:SPI-CompatibleInterface•ProgrammableResolution:9to12Bits+SignTheTMP122isanSPI-compatibletemperaturesensoravailableinanSOT23-6package.Requiring•Aaccuracy:±1.5°Cfrom-25°Cto85°C(max)onlyapull-upresistorforcompletefunction,the±2.0°Cfrom-55°Cto125°C(max)TMP122temperaturesensoriscapableofmeasuring•LowQuiescentCurrent:50μAtemperatureswithin2°Cofaccuracyovera•WideSupplyRange:2.7Vto5.5Vtemperaturerangeof-55°Cto125°C,withoperationupto150°C.Programmableresolution,•TinySOT23-6Packageprogrammablesetpointsandshutdownfunction•Operationto150°Cprovideversatilityforanyapplication.Lowsupply•ProgrammableHigh/LowSetpointscurrentandasupplyrangefrom2.7Vto5.5VmaketheTMP122anexcellentcandidateforlow-powerapplications.•Power-SupplyTemperatureMonitoringTheTMP122isidealforextendedthermal•ComputerPeripheralThermalProtectionmeasurementinavarietyofcommunication,computer,consumer,environmental,industrial,and•NotebookComputersinstrumentationapplications.•CellPhones•BatteryManagement•OfficeMachines•ThermostatControls•EnvironmentalMonitoringandHVAC•ElectromechanicalDeviceTemperatureANDMEDICALAPPLICATIONS•ControlledBaseline•OneAssembly/TestSite•OneFabricationSite•AvailableinMilitary(–55°C/125°C)TemperatureRange(1)•ExtendedProductLifeCycle•ExtendedProduct-ChangeNotification•ProductTraceability(1)Additionaltemperaturerangesareavailable-contactfactory1Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.2SPIisatrademarkofMotorola.PRODUCTIONDATAinformationiscurrentasofpublicationdate.Copyright©2008,TexasInstrumentsIncorporatedProductsconformtospecificationsperthetermsoftheTexasInstrumentsstandardwarranty.Productionprocessingdoesnotnecessarilyincludetestingofallparameters.ABSOLUTEMAXIMUMRATINGSTMP122-EPSBOS454–NOVEMBER2008..........................................................................................................................................................................................(1)TAPACKAGE(2)ORDERABLEPARTNUMBERTOP-SIDEMARKING–55°Cto125°CSOT23-6Tapeandreelof250TMP122AMDBVTEP122E(1)Forthemostcurrentpackageandorderinginformation,seethePackageOptionAddendumattheendofthisdocument,orseetheTIwebsiteat(2)Packagedrawings,thermaldata,andsymbolizationareavailableat(unlessotherwisenoted)VALUEUNITV+Powersupply7VVIInputvoltage-0.3to7VInoutcurrent10mAOperatingtemperaturerange-55to150°CStoragetemperaturerange-60to150°CTJ(max)Junctiontemperature150°CLeadtemperature(soldering)300°CPINCONFIGURATION2SubmitDocumentationFeedbackCopyright©2008,TexasInstrumentsIncorporatedProductFolderLink(s):TMP122-EPELECTRICALCHARACTERISTICSTMP122-EP–NOVEMBER2008overoperatingfree-airtemperaturerange(unlessotherwisenoted)PARAMETERTESTCONDITIONSMINTYPMAXUNITTemperatureRange-55125°Cinput-25°Cto85°C±0.5±1.5Accuracy(temperatureerror)-55°Cto125°C±1.0±2.0°C-55°Cto150°C±1.5vssupply0.1°C/VResolution(1)Selectable±0.0625°CDigitalVIH0.7(V+)Vinput/outputVIL0.3(V+)VInputcurrent,SO/I,SCK,CS0V≤VIN≤V+±1μAVOLSO/IISINK=3mA0.4VVOHSO/IISOURCE=2mA(V+)-0.4VVOLALERTISINK=4mA0.4VLeakagecurrentALERT0V≤VIN≤6V±1μAInputcapacitance,SO/I,SCK,CS,2.5pFALERTReolutionSelectable9to12+signbitsConversiontime9bit+sign304010bit+sign6080ms11bit+sign12016012bit+sign240320PowersupplyOperatingrange2.75.5VQuiescentcurrentIQSerialbusinactive5075μAShutdowncurrentISDSerialbusinactive0.11TemperatureSpecifiedrange-55125rangeOperatingrange-55150°CStoragerange-60150Thermalresistance,θJASOT23-6200°C/Wsurface-mount(1)Specifiedfor12-bitresolution.Copyright©2008,TexasInstrumentsIncorporatedSubmitDocumentationFeedback3ProductFolderLink(s):TMP122-EPTYPICALCHARACTERISTICSTMP122-EPSBOS454–NOVEMBER2008..........................................................................................................................................................................................