STK3310-Datasheet-v1.3

STK3310AmbientLightSensorandProximitySensorwithBuilt-inIRLEDDatasheetVersion-1.32014/05/[e-mail]K3310isanintegratedambientandinfraredlighttodigitalconverterwithabuilt-inIRLEDandI2Cinterface.Thisdeviceprovidesnotonlyambientlightsensingtoallowrobustbacklight/displaybrightnesscontrolbutalsoinfraredsensingtoallowproximityestimationfeaturedwithinterruptfunction.Forambientlightsensing,theSTK3310incorporatesaphotodiode,timingcontrollerandADCinasinglechip.Theexcellentspectralresponseisdesignedtobeclose-tohumaneye.TheSTK3310issuitablefordetectingawiderangeoflightintensityenvironment.Themaximumdetectinglightintensityis6.5KLux.Forproximitysensing,theSTK3310alsoincorporatesaphotodiode,timingcontrollerandADCinthesamechip.Thespectralresponseisoptimizedforwavelength850nminfraredlight.TheSTK3310providesprogrammabledutysettingtodriveIRLEDandemploysanoisecancellationschemetohighlyrejectunwantedambientIRnoise.Theproximitysensorisoptimizedsothattheblackcardat0-cmcanbedetected.Pleasecontactwithsensortekforfurtherapplicationsolution.TheSTK3310hasexcellenttemperaturecompensation,robuston-chiprefreshratesettingwithoutexternalcomponents.Softwareshutdownmodecontrolisprovidedforpowersavingapplication.TheSTK3310operatingvoltagerangeis1.7Vto3.6V.Feature
Integratedambientlightsensor,proximitysensorandinfraredLEDinonepackage.ProximitySensor
16bitsresolutionforproximitydetection
Built-inLEDdriverwithflexiblesetting–LEDturn-ontime:16stepsITx64dutycycleoptions–LEDcurrent:12.5/25/50/100mA
Flexibleinterruptsetting–Severalinterruptmodesmeetapplicationrequirements.–Flagmodesareincluded.–Interruptpersistence:1/4times
Lownoisedesign
AmbientIRnoisecancellation–Immunityto50Hz/60Hzfluorescentlightflicker
Built-in850nmLEDAmbientLightSensor
Convertambientlightintensityto16-bitdigitaldataformat
3rdgenerationambientlightsensorwhichclosestohuman-eyeresponseandsuppressIRportion–ReadtheIlluminancedirectly;unlikeconventionalsolutioncalculatedfromtwodiodes’data
Flexibledigitalsettings–Integrationtime:0.2ms~6400ms
Flexibleinterruptsetting–Interruptwhileout-of-window–Persistence:1/4times
Maximumdetectingambientlightintensity:6.5KLuxGeneral
FullydigitalcontrolwithI2Cinterface–1.7~3.6VI2Cinterface
Lowpowerdesign–Standbymode–Waitmode
Time-multiplexingforsensing
VDDwideoperationvoltage:1.7~3.6V
Excellenttemperaturecompensation:-40to85°C
Package:3.94x2.36x1.35(mm)
Lead-freepackage(RoHScompliant)Applications
MobilePhone,Smart-phone,[e-mail][e-mail]4325678SDAINTLDRNCVDDSCLGNDLEDASTK33101DetectorIREmitterTopView4.PINDESCRIPTIONPinNo.PinNameDir.PinFunction1SDABI2Cserialdataline.(OpenDrain)2/INTOInterruptpin,LOforinterruptalarming.(OpenDrain)3LDRIIRLEDdriverpinconnectingtothecathodeoftheexternalIRLED.ThesinkcurrentoftheIRLEDdrivercanbeprogrammedthroughI2Cortheexternalresistor.4NCNoConnect.5LEDAIAnodeoftheembeddedIRLED,connecttopower.6GNDGNDGround.ThethermalpadisalsoconnectedtotheGNDpin.7SCLII2Cserialclockline.8VDDPWRPowersupply:1.7Vto3.6V.Directiondenotation:OOut[e-mail]AbsoluteMaximumRatingsSymbolParameterMin.Typ.Max.UnitVDDSupplyvoltage-0.3—3.8VVLEDAVoltageofLED’sanode-0.3—4.7VVLDRVoltageofLDR3.8VTaOperationtemperature-40—85°CTsStoragetemperature-40—85°CNOTE:AllvoltagesaremeasuredwithrespecttoGNDRecommendedOperatingConditionsSymbolParameterMin.Typ.Max.UnitVDDSupplyvoltage1.7—3.6VVLEDAVoltageofLED’sanode2.4—4.6VfI2CClockfrequencyofI2C——400KHzTaOperationtemperature-40—85°CNOTE:AllvoltagesaremeasuredwithrespecttoGNDSymbolParameterMax.Unit2(HBM)kV200(MM)VESDElectrostaticdischargeprotection100(LatchUp)mANOTE:AllvoltagesaremeasuredwithrespecttoGND55..11EElleeccttrriiccaallaannddOOppttiiccaallCChhaarraacctteerriissttiiccssVDD=VLED=2.8V,underroomtemperature25°C(unlessotherwisenoted)SymbolParameterConditionMin.Typ.Max.UnitOperationCharacteristicsIALSALSonlysupplycurrentNote1,290μAIPSPSonlysupplycurrentNote1,2100μAIWAITSupplycurrentatwaitstateNote1,229μAISDShutdowncurrentNote1,20.21μAVIHLogichigh,I2CNote61.3VDDVVILLogiclow,I2CNote7—0.4VALSCharacteristicsλp1PeaksensitivitywavelengthforALS550nmALSFSCNTFullscaleALScounts65535countsALSDARKALSdarkoffsetNote2,3,403countsALSSENSEALSsensingtoleranceNote2,310%—DetectingintensityforALS0.1(1count)6.5K(65535counts)LuxSTK3310REV1.3@copyright2013SensortekTechnologyCorp.5ProximityCharacteristicsλp2HighsensitivitywavelengthrangeforPS850nmPSFSCNTFullscalePScounts65535countsPSCOUNTPScountsNote2,8255300345countsIRDR_LED[1:0]Note50012.5mA0125mA1050mAILEDSINKLEDsinkcurrent11100mALEDDUTYLEDdutyadjuststeps64stepsNote1:NoLEDoperation.Note2:GAIN_ALS[1:0]=2’b11,.IT_ALS[3:0]=4’b1001,GAIN_PS[1:0]=2’b11,.IT_PS[3:0]=4’b0001.Note3:Whit