MLX90614中文资料

MLX90614familySingleandDualZoneInfraRedThermometerinTO-39FeaturesandBenefits‰Smallsize,lowcost‰Easytointegrate‰Factorycalibratedinwidetemperaturerange:-40to125˚Cforsensortemperatureand-70to380˚Cforobjecttemperature.‰Highaccuracyof0.5°Coverwidetemperaturerange(0..+50°CforbothTaandTo)‰High(medical)accuracycalibration‰Measurementresolutionof0.02°C‰Singleanddualzoneversions‰SMBuscompatibledigitalinterface‰CustomizablePWMoutputforcontinuousreading‰Availablein3Vand5Vversions‰Simpleadaptationfor8to16Vapplications‰Powersavingmode‰Differentpackageoptionsforapplicationsandmeasurementsversatility‰AutomotivegradeApplicationsExamples‰Highprecisionnon-contacttemperaturemeasurements;‰ThermalComfortsensorforMobileAirConditioningcontrolsystem;‰Temperaturesensingelementforresidential,commercialandindustrialbuildingairconditioning;‰Windshielddefogging;‰Automotiveblindangledetection;‰Industrialtemperaturecontrolofmovingparts;‰Temperaturecontrolinprintersandcopiers;‰Homeapplianceswithtemperaturecontrol;‰Healthcare;‰Livestockmonitoring;‰Movementdetection;‰Multiplezonetemperaturecontrol–upto100sensorscanbereadviacommon2wires‰Thermalrelay/alert‰BodytemperaturemeasurementOrderingInformationPartNo.MLX90614TemperatureCodeE(-40°Cto85°C)K(-40°Cto125°C)PackageCodeSF(TO-39)-OptionCode-XXX(1)(2)(3)(1)SupplyVoltage/AcccuracyA-5VB-3VC-ReservedD-3VmedicalaccuracyExample:MLX90614ESF-BAA(2)Numberofthermopiles:A–singlezoneB–dualzone(3)Packageoptions:A–StandardpackageB–ReservedC–35°FOV1FunctionaldiagramJ1CON1SCLSDAGNDVddC1valueandtypemaydifferindifferentapplicationsforoptimumEMCU1MLX906141PWMSDAC1MLX90614connectiontoSMBus4VssSCLVzMLX90614Axx:Vdd=4.5...5.5V32Vdd0.1uFFigure1Typicalapplicationschematics2GeneralDescriptionTheMLX90614isanInfraRedthermometerfornoncontacttemperaturemeasurements.BoththeIRsensitivethermopiledetectorchipandthesignalconditioningASSPareintegratedinthesameTO-39can.Thankstoitslownoiseamplifier,17-bitADCandpowerfulDSPunit,ahighaccuracyandresolutionofthethermometerisachieved.ThethermometercomesfactorycalibratedwithadigitalPWMandSMBus(SystemManagementBus)output.Asastandard,the10-bitPWMisconfiguredtocontinuouslytransmitthemeasuredtemperatureinrangeof-20to120˚C,withanoutputresolutionof0.14˚CandthePORdefaultisSMBus.3901090614Page1of40DataSheetRev00303/Oct/2007MLX90614familySingleandDualZoneInfraRedThermometerinTO-393901090614Page2of40DataSheetRev00303/Oct/2007Generaldescription(continued)TheMLX90614isbuiltfrom2chipsdevelopedandmanufacturedbyMelexis:•TheInfraRedthermopiledetectorMLX81101•ThesignalconditioningASSPMLX90302,speciallydesignedtoprocesstheoutputofIRsensor.ThedeviceisavailableinanindustrystandardTO-39package.Thankstothelownoiseamplifier,highresolution17-bitADCandpowerfulDSPunitofMLX90302highaccuracyandresolutionofthethermometerisachieved.ThecalculatedobjectandambienttemperaturesareavailableinRAMofMLX90302withresolutionof0.01˚C.Theyareaccessibleby2wireserialSMBuscompatibleprotocol(0.02°Cresolution)orvia10-bitPWM(PulseWidthModulated)outputofthedevice.TheMLX90614isfactorycalibratedinwidetemperatureranges:-40to125˚Cfortheambienttemperatureand-70to382.2˚Cfortheobjecttemperature.The10-bitPWMisasastandardconfiguredtotransmitcontinuouslythemeasuredobjecttemperatureforanobjecttemperaturerangeof-20to120˚Cwithanoutputresolutionof0.14˚C.ThePWMcanbeeasilycustomizedforvirtuallyanyrangedesiredbythecustomerbychangingthecontentof2EEPROMcells.Thishasnoeffectonthefactorycalibrationofthedevice.ThePWMpincanalsobeconfiguredtoactasathermalrelay(inputisTo),thusallowingforaneasyandcosteffectiveimplementationinthermostatsortemperature(freezing/boiling)alertapplications.Thetemperaturethresholdisuserprogrammable.InanSMBussystemthisfeaturecanactasaprocessorinterruptthatcantriggerreadingallslavesonthebusandtodeterminetheprecisecondition.Asastandard,theMLX90614iscalibratedforanobjectemissivityof1.Itcanbeeasilycustomizedbythecustomerforanyotheremissivityintherange0.1-1.0withouttheneedofrecalibrationwithablackbody.Thethermometerisavailablein2supplyvoltageoptions:5Vcompatibleor3V(battery)compatible.The5Vcanbeeasilyadoptedtooperatefromahighersupplyvoltage(8-16V,forexample)byuseoffewexternalcomponents(referto“Applicationsinformation”sectionfordetails).Anopticalfilter(long-wavepass)thatcutsoffthevisibleandnearinfra-redradiantfluxisintegratedinthepackagetoprovidesunlightimmunity.MLX90614familySingleandDualZoneInfraRedThermometerinTO-393901090614Page3of40DataSheetRev00303/Oct/20073TableofContents1Functionaldiagram......................................................................................................................................................................................12GeneralDescription....................................................................................................................................................................................1Generaldescription(continued)..................................................................................................................................................