Easy-to-Use, Low-Power, Low-Supply Temperature …

1 ()C ProductFolderOrderNowTechnicalDocumentsT ools &SoftwareSupport &CommunityAn IMPORTANTNOTICEat the end of this datasheetaddressesavailability,warranty, changes,use in safety-criticalapplications,intellectual propertymattersand JUNE2009 REVISEDDECEMBER2018 TMP302 Easy-to-Use, Low-Power, Low-SupplyTemperat ureSwitchin Micropackage11 Features1 Low Power:15 A (Maximum) SOT563 mm Trip-PointAccuracy: C (Typical)From+40 Cto +125 C Pin-SelectableTrip Points Open-DrainOutput Pin-SelectableHysteresis:5 C and 10 C Low V to V2 Applications Cell PhoneHandsets PortableMediaPlayers ConsumerElectronics Servers Power-SupplySystems DC-DCModules ThermalMonitoring ElectronicProtectionSystems3 DescriptionTheTMP302deviceis a temperatureswitchin amicropackage(SOT563).

2 TheTMP302offerslowpower(15- A maximum)andease-of-usethroughpin-selecta bletrip pointsand additionalcomponentsforoperation;theycan functionindependentofmicroprocessorsor TMP302is availablein additionaltrip points,contacta TI (1)PARTNUMBERPACKAGESELECTABLETRIPPOINTS ( C)(2)TMP302 ASOT(6)50, 55, 60, 65 TMP302 BSOT(6)70, 75, 80, 85 TMP302 CSOT(6)90, 95, 100,105 TMP302 DSOT(6)110,115,120,125(1) For all availablepackages,see the orderableaddendumatthe end of the datasheet.(2) For otheravailabletrip points,contacta TI ThresholdAccuracy1 TRIPSET06 TRIPSET12 GND5 VS3 OUT4 HYSTSET2 TMP302 SBOS488E JUNE2009 :TMP302 SubmitDocumentationFeedbackCopyright 2009 2018,TexasInstrumentsIncorporatedTableof Contents1 Pin Configurationand Applicationand Deviceand Mechanical,Packaging,and RevisionHistoryNOTE:Pagenumbersfor previousrevisionsmay differfrompagenumbersin the (October2018)to RevisionEPage Changedthe inputpin supplyvoltagemaximumvaluefrom.

3 VS+ and 4 V to: : VS+ and 4 V ..4 ChangesfromRevisionB (December2014)to RevisionCPage Changeddevicenamesby simplifyingfromTMP302A,TMP302B,TMP302C,a nd TMP302 Dto Addedplus-minussymbolto (September2009)to RevisionBPage AddedESDR atingstable,FeatureDescriptionsection,De viceFunctionalModes,ApplicationandImplem entationsection,PowerSupplyRecommendatio nssection,Layoutsection,DeviceandDocumen tationSupportsection,andMechanical,Packa ging, Pin Configurationand FunctionsDRLP ackage6-PinSOTTop JUNE2009 REVISEDDECEMBER2018 ProductFolderLinks.

4 TMP302 SubmitDocumentationFeedbackCopyright 2009 2018,TexasInstrumentsIncorporatedPin combinationwith TRIPSET1to selectthe temperatureat whichthe devicetrips2 GNDG roundGround3 OUTD igitalOutputOpendrain,active-lowoutput4 HYSTSETD igitalInputUsedto set amountof thermalhysteresis5 VSPowerSupplyPowersupply6 TRIPSET1 DigitalInputUsedin combinationwith TRIPSET0to selectthe temperatureat whichthe devicetrips4 TMP302 SBOS488E JUNE2009 :TMP302 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)MINMAXUNITV oltageSupply4 VInputpin (TRIPSET0,TRIPSET1,HYSTSET) + 4 Outputpin (OUT) (OUT)10mATemperatureOperating 55130 CJunction150 Storage 60150(1)JEDEC documentJEP155statesthat 500-VHBM allowssafe manufacturingwith a standardESDcontrolprocess.(2)JEDEC documentJEP157statesthat 250-VCDM allowssafe manufacturingwith a (ESD)ElectrostaticdischargeHuman-bodymod el(HBM),per ANSI/ESDA/JEDECJS-001(1) 2000 VCharged-devicemodel(CDM),per JEDEC specificationJESD22-C101(2) 1000 Machinemodel(MM) (unlessotherwisenoted) VS10100k TASpecifiedtemperature 40125 C(1)For moreinformationabouttraditionaland new thermalmetrics,see theSemiconductorandICPackageThermalMetri csapplicationreport(SPRA953).

6 (1)TMP302 UNITDRL(SOT)6 PINSR C/WR JC(top)Junction-to-case(top) C/WR C/W C/W ( C) Trip Accuracy ( C) 1201614121086420-75-50-250255075100150 Temperature ( C) Quiescent Current ( A)125V = VSV = VSV = JUNE2009 REVISEDDECEMBER2018 ProductFolderLinks:TMP302 SubmitDocumentationFeedbackCopyright 2009 2018, TA= 40 C to +125 C, and VS= to V (unlessotherwisenoted).100%of all unitsare productiontestedat TA=25 C; overtemperaturespecificationsare specifiedby pointaccuracy 2 CTrip pointaccuracyversussupply C/VTrip pointhysteresisHYSTSET= GND5 CHYSTSET= VS10 CTEMPERATURETRIPPOINTSETT emperaturetrip pointsetTRIPSET1= GND,TRIPSET0=GNDD efault CTRIPSET1= GND,TRIPSET0= VSDefault+ 5 CTRIPSET1= VS, TRIPSET0= GNDD efault+ 10 CTRIPSET1= VS, TRIPSET0= VSDefault+ 15 VSVSVVILI nputlogiclevellow VSVIII nputcurrent0 < VI< V1 ADIGITALOUTPUTVOLO utputlogiclevellowVS> 2 V, IOL= 3 < 2 V.

7 IOL= 3 40 C to +125 C815 AVS= V,TA= 50 C7 TA= 25 C and VS= V, typicalunitsFigure1. Trip AccuracyErrorvs TemperatureFigure2. QuiescentCurrentvs TemperatureVoltage (2 V/div)Time (8 s/div)OUTVSV oltage (2 V/div)Time (10 ms/div) ()C 400350300250200150100500-75-50-250255075 100125150 Temperature ( C) Output Logic Level Low (mV)120100806040200 Temperature ( C) 051015202530 Time (s)1009080706050403020100 Temperature ( C) 020406080100 120 140 160 180 200 Time (s)6 TMP302 SBOS488E JUNE2009 :TMP302 SubmitDocumentationFeedbackCopyright 2009 2018,TexasInstrumentsIncorporatedTypical Characteristics(continued)At TA= 25 C and VS= V, TemperatureStepResponsein PerfluorinatedFluidat 100 C vs TimeFigure4.

8 ThermalStepResponsein Air at 100 C vs TimeFigure5. Trip ThresholdAccuracyVS= VIOL= 2 mAFigure6. OutputLogic-LevelLowVOLvs TemperatureFigure7. Power-Upand Power-DownResponseTMP302A,TA= 55 CTRIPSET1= TRIPSET0= GNDF igure8. Power-Up,Trip,and Power-DownResponseTRIPSET0 Temperature Threshold and HysteresisTemperature JUNE2009 REVISEDDECEMBER2018 ProductFolderLinks:TMP302 SubmitDocumentationFeedbackCopyright 2009 2018,TexasInstrumentsIncorporated7 TMP302temperatureswitchis optimalfor ultralow-powerapplicationsthat requireaccuratetrip temperatureswitchis a devicethat issuesan alertresponsewhena temperaturethresholdis trip thresholdsare programmableto four differentsettingsusingthe TRIPSET1and lists the pin settingsversustrip Trip PointversusTRIPSET1and TRIPSET0 TRIPSET1 TRIPSET0 TMP302 ATMP302 BTMP302 CTMP302 DGNDGND50 C70 C90 C110 CGNDVS55 C75 C95 C115 CVSGND60 C80 C100 C120 CVSVS65 C85 C105 C125 C60 CT(TRIP)

9 VS8 TMP302 SBOS488E JUNE2009 :TMP302 SubmitDocumentationFeedbackCopyright 2009 2018, the temperaturetrip thresholdis crossed,the open-drain,activelow output(OUT)goeslow and doesnot returnto the originalhighstate(thatis, VS) until the temperaturereturnsto a valuewithina hysteresiswindowset bythe HYSTSETpin. The HYSTSETpin allowsthe userto choosebetweena 5 C and a 10 C lists the hysteresiswindowthat correspondsto the HYSTSETW indowHYSTSETTHRESHOLDHYSTERESISGND5 CVS10 CFor the specificcaseof the device,if the HYSTSETpin is set to 10 C (thatis, connectedto VS) and the deviceisconfiguredwitha 60 C trip point(TRIPSET1= VS, TRIPSET0= GND),whenthis thresholdis exceededtheoutputdoesnot returnto the originalhigh stateuntil it reaches50 C.

10 This caseis moreclearlyshownin TMP302A:HYSTSET= VS, TRIPSET1= VS, TRIPSET0= TMP302familyof deviceshas a the TMP302familyof devicesoccurswhenthe power-supplyvoltageappliedbetweenthe VSpin and GNDis withinthe specifiedoperatingrangeof to V. The temperaturethresholdis selectedby connectingthe TRIPSET0and TRIPSET1pins toeitherthe GNDor VSpins(seeTable1). Hysteresisis selectedby connectingthe HYSTSETpin to eithertheGNDor VSpins (seeTable2). The outputpin, OUT,remainshighwhenthe temperatureis belowthe OUTpin remainslow whenthe temperatureis at or abovethe OUTpin returnsfroma low statebackto the highstatebas