TMP112x High-Accuracy, Low-Power, Digital …

1 +ADD0 ProductFolderOrderNowTechnicalDocumentsT ools &SoftwareSupport &CommunityReferenceDesignAn IMPORTANTNOTICEat the end of this datasheetaddressesavailability,warranty, changes,use in safety-criticalapplications,intellectual propertymattersand MARCH2009 REVISEDMAY2018 TMP112xHigh- accuracy , Low-Power, DigitalTe mperatureSensorsWith SMBusand Two-Wire Serial Interfacein SOT56311 Features1 TMP112 AAccuracyWithoutCalibration: C (Maximum)From0 C to +65 C ( V) C (Maximum)From 40 C to +125 C TMP112 BAccuracyWithoutCalibration: C (Maximum)From0 C to +65 C ( V) C (Maximum)From 40 C to +125 C TMP112 NAccuracyWithoutCalibration: C (Maximum)From 40 C to +125 C SOT563 Package( mm mm) Low QuiescentCurrent: 10- A Active(Maximum),1- A Shutdown(Maximum) V to V Resolution:12 Bits DigitalOutput:SMBus , Two-Wire,and I2 CInterfaceCompatibility NISTT raceable2 Applications Portableand Battery-PoweredApplications power -SupplyTemperatureMonitoring ComputerPeripheralThermalProtection NotebookComputers BatteryManagement OfficeMachines ThermostatControls ElectromechanicalDeviceTemperatures GeneralTemperatureMeasurements.

2 IndustrialControls TestEquipment MedicalInstrumentation3 DescriptionThe TMP112familyof devicesare digitaltemperaturesensorsdesignedfor High-Accuracy, Low-Power, NTC/PTCthermisto rreplacementswherehighaccuracyis TMP112 Aand C accuracyand are optimizedto providethebestPSRperformancefor ,whileTMP112 Noffers1 not requirecomplexcalculationsorlookuptables to derivethe on-chip12-bitADCoffersresolutionsdownto 68%smallerfootprintthanan ,two-wireandI2 Cinterfacecompatibility,and allowsup to four deviceson one bus. The devicealso featuresan specifiedto to V with the maximumquiescentcurrentof 10 A overthe full designedfor extendedtemperaturemeasurementincommunic ation,computer,consumer,environmental,in dustrial, deviceis specifiedfor operationovera temperaturerangeof 40 C to+125 TMP112familyproductionunitsare 100%testedagainstsensorsthatare NIST-traceableandareverifiedwithequipmen tthatareNIST- (1)PARTNUMBERPACKAGEBODYSIZE(NOM) TMP112x SOT563(6) (1) For all availablepackages,see the orderableaddendumatthe end of the MARCH2009.

3 TMP112 SubmitDocumentationFeedbackCopyright 2009 2018,TexasInstrumentsIncorporatedTableof Contents1 Pin Configurationand Applicationand Deviceand Mechanical,Packaging,and RevisionHistoryNOTE:Pagenumbersfor previousrevisionsmay differfrompagenumbersin the (February2018)to RevisionGPage Changedlong-termstabilityparameterto long-termdrift ..5 Changedlong-termdrift test conditionfrom:3000hoursto: 3000hoursat 125 Changedlong-termdrift typicalvaluefrom:< 1 LSB to: C ..5 ChangesfromRevisionE (December2015)to RevisionFPage AddedTMP112 Nand TMP112 Borderablesto the Removedduplicatespecifiedand RemovedCalibratingfor ImprovedAccuracyandUsingthe SlopeSpecificationsWitha 22 ChangesfromRevisionD (April2015)to RevisionEPage AddedTI Addedlast (October2014)to RevisionDPage ChangedMIN,TYP,and MAXvaluesfor the TemperatureAccuracy(temperatureerror) Changedthe MHzin the POWERSUPPLY sectionof 5 Changedthe TemperatureErrorat 25 C graphin Changedthe TemperatureErrorvs Temperaturegraphin + MARCH2009 REVISEDMAY2018 ProductFolderLinks.

4 TMP112 SubmitDocumentationFeedbackCopyright 2009 2018,TexasInstrumentsIncorporatedChanges fromRevisionB (June2009)to RevisionCPage AddedHandlingRatingtable,FeatureDescript ionsection,DeviceFunctionalModes,Applica tionandImplementationsection,PowerSupply Recommendationssection,Layoutsection,Dev iceand DocumentationSupportsection,andMechanica l,Packaging,and (March2009)to RevisionBPage Changedfootnote1 ofSpecificationsfor ClarifiedExample1; extendedworst-caseaccuracyto be from 15 C to +50 ChangedequationinUsingthe SlopeSpecificationsWitha Pin Configurationand FunctionsDRLP ackage6-PinSOT563 Top ViewPin ;requiresa ;requiresa GNDor V+5V+ISupplyvoltage, V to V6 ;requiresa MARCH2009 :TMP112 SubmitDocumentationFeedbackCopyright 2009 2018,TexasInstrumentsIncorporated(1)Stre ssesbeyondthoselistedunderAbsoluteMaximu mRatingsmay causepermanentdamageto the stressratingsonly,whichdo not implyfunctionaloperationof the deviceat theseor any otherconditionsbeyondthoseindicatedunder RecommendedOperatingConditions.

5 Exposureto absolute-maximum-ratedconditionsfor extendedperiodsmay (unlessotherwisenoted)(1)MINMAXUNITS upplyvoltageV+5 VInputvoltageSCL,ADD0,and SDA (V+) + 55150 CJunctiontemperature,TJ150 CStoragetemperature,Tstg 60150 C(1)JEDEC documentJEP155statesthat 500-VHBM allowssafe manufacturingwith a standardESDcontrolprocess.(2)JEDEC documentJEP157statesthat 250-VCDM allowssafe manufacturingwith a (ESD)ElectrostaticdischargeHumanbodymode l(HBM),per ANSI/ESDA/JEDECJS-001(1) 2000 VChargeddevicemodel(CDM),per JEDEC specificationJESD22-C101(2) (unlessotherwisenoted)MINNOMMAXUNITV+ 40125 C(1)For moreinformationabouttraditionaland new thermalmetrics,see theIC (1)TMP112 UNITDRL(SOT563)6 PINSR JAJunction-to-ambientthermalresistance20 0 C/WR JC(top)Junction-to-case(top) C/WR C/W C/W C/WR JC(bot)Junction-to-case(bottom)thermalre sistanceN/A MARCH2009 REVISEDMAY2018 ProductFolderLinks.

6 TMP112 SubmitDocumentationFeedbackCopyright 2009 2018,TexasInstrumentsIncorporated(1)Long -termdrift is determinedusingacceleratedoperationallif e testingat a junctiontemperatureof 150 C for TA= +25 C and VS= + + , 40+125 CAccuracy(temperatureerror)TMP112A+25 C, V+ = V C0 C to +65 C, V+ = V 40 C to +125 C 1 TMP112B+25 C, V+ = V C to +65 C, V+ = V 40 C to +125 C 1 TMP112N 40 C to +125 C 1DC power -supplysensitivity 40 C to +125 C/VLong-termdrift(1)3000hoursat 125 C CResolution(LSB) (V+) (V+)IINI nputcurrent0 < VIN< V1 AVOLSDAO utputlogiclevelV+ > 2 V, IOL= 3 + < 2 V, IOL= 3 (V+)VOLALERTV+ > 2 V, IOL= 3 + < 2 V, IOL= 3 (V+)Resolution12 BitsConversiontime2635msConversionmodesC R1= 0, CR0= 0, CR0= 11CR1= 1, CR0= 0 (default)4CR1= 1, CR0= 18 Timeouttime3040msPOWERSUPPLYO peratingsupplyrange+ + inactive,CR1= 1, CR0= 0(default)710 ASerialbus active,SCLfrequency= 400 kHz15 Serialbus active,SCLfrequency= MHz85 ISDS hutdowncurrentSerialbus ASerialbus active,SCLfrequency= 400 kHz10 Serialbus active,SCLfrequency= MHz806 TMP112 SBOS473G MARCH2009.

7 TMP112 SubmitDocumentationFeedbackCopyright 2009 2018, theTwo-WireTimingDiagramssectionfor (SCL)SCLoperatingfrequencyV+ (BUF)Bus-freetime betweenSTOPand START conditionSee Figure10600160nst(HDSTA)Holdtime period,the first clockis (SUSTA)repeatedstartconditionsetuptime60 0160nst(SUSTO)STOP conditionsetuptime600160nst(HDDAT)Dataho ld time10090025105nst(SUDAT)Datasetuptime10 025nst(LOW)SCL-clocklow periodV+ , see Figure101300210nst( high )SCL-clockhigh periodSee Figure1060060nstFDDatafall timeSee Figure1030080nstRDDatarise timeSee Figure10300nsSCLK 100 kHz,see Figure101000nstFCClockfall timeSee Figure1030040nstRCClockrise timeSee Figure1030040ns109876543210 Temperature ( C)-60 -40040140 160I( A) Supply-20206080 100 1201009080706050403020100 Bus Frequency (Hz)1k10k100k1M10MI ( A)Q-55 C+25 C+125 CTemperature (qC)Temperature Error (qC) + 3 VMean 3 V20181614121086420 Temperature ( C)-60-204060140 160I ( A) Supply-4002080 100 SupplyTemperature Error (qC) vs Supply ( C/V) MARCH2009 REVISEDMAY2018 ProductFolderLinks:TMP112 SubmitDocumentationFeedbackCopyright 2009 2018, TA= +25 C and V+ = V, TemperatureErrorat 25 CFigure2.

8 Accuracyvs SupplyFigure3. TemperatureErrorvs TemperatureFourConversionsper SecondFigure4. AverageQuiescentCurrentvs TemperatureFigure5. ShutdownCurrentvs TemperatureFigure6. QuiescentCurrentvs Bus Frequency(Temperatureat )4038363432302826242220 Temperature ( C)-60-204060140 160 Conversion Time (ms) Supply-4020080 100 1208 TMP112 SBOS473G MARCH2009 :TMP112 SubmitDocumentationFeedbackCopyright 2009 2018,TexasInstrumentsIncorporatedTypical Characteristics(continued)At TA= +25 C and V+ = V, ConversionTimevs + MARCH2009 REVISEDMAY2018 ProductFolderLinks:TMP112 SubmitDocumentationFeedbackCopyright 2009 2018,TexasInstrumentsIncorporated7 TMP112familyof devicesare digitaltemperaturesensorsthat are optimalfor two-wire,SMBus,andI2C specifiedoveran operatingtemperaturerangeof 40 C to 125 C.

9 Figure8 showsa blockdiagramofthe showsthe ESDprotectioncircuitrycontainedin the temperaturesensorin the TMP112familyis the chip throughthe packageleadsaswell as the packageleadsprovidethe primarythermalpathbecauseof the lowerthermalresistanceof the alternativeversionof the TMP112familyis TMP102devicehas reducedaccuracy,the samemicro-package,and is Advantagesof TMP112familyVersusTMP102 DEVICECOMPATIBLEINTERFACESPACKAGESUPPLYC URRENTSUPPLYVOLTAGE(MIN)SUPPLYVOLTAGE(MA X)RESOLUTIONLOCALSENSORACCURACY(MAX) V12 C: (0 C to 65 C)1 C: (-40 C to 125 C) V12 C2 C: (25 C to 85 C)3 C: (-40 C to 125 C) InternalBlockDiagramALERTCoreSCLGNDV+A0V +SDATMP11210 TMP112 SBOS473G MARCH2009 :TMP112 SubmitDocumentationFeedbackCopyright 2009 2018,TexasInstrumentsIncorporatedFunctio nalBlockDiagrams(continued)(1)The resolutionfor the TemperatureADCin InternalTemperaturemodeis storedin the temperatureregisterof the TMP112familyis configuredas a 12-bitread-onlyregister(settingtheEM bit to 0 in the configurationregister;see theExtendedMode(EM)section),or as a 13-bitread-onlyregister(settingthe EM bit to 1 in the configurationregister)that storesthe outputof the readto obtaindataand are listedin Table8 and Table9.

10 Byte1 is the mostsignificantbyte(MSB),followedby byte2, the leastsignificantbyte(LSB).The first 12 bits (13 bits in extendedmode)are usedto leastsignificantbyte doesnot haveto be readif that informationis not temperatureis listedin Table2 and Table3. C. Negativenumbersarerepresentedin or reset,the temperatureregisterreads0 Cuntil the first conversionis D0 of byte 2 indicatesnormalmode(EM bit equals0) or extendedmode(EMbit equals1), and can be usedto distinguishbetweenthe two in the 12-BitTemperatureDataFormat(1)TEMPERATUR E( C)DIGITALOUTPUT(BINARY) 25111001110000E70 MARCH2009 REVISEDMAY2018 ProductFolderLinks:TMP112 SubmitDocumentationFeedbackCopyright 2009 2018,TexasInstrumentsIncorporatedTable2 doesnot list all followingrulesto obtainthe digitaldataformatfor a giventemperatureor the temperaturefor a convertpositivetemperaturesto a digitaldataformat:1.