Features
·Operatingvoltage:5V~12V·Standbycurrent:100mA(Typ.)·On-chipregulator·Adjustableoutputduration·CDSinput
·40secondwarm-up
·ON/AUTO/OFFselectablebyMODEpin·Overridefunction
·Auto-resetiftheZCsignaldisappearsover
3seconds
·16-pinDIPpackage
Applications
·PIRlightcontrollers·Motiondetectors
·Alarmsystems·Autodoorbells
GeneralDescription
TheHT761xisaCMOSLSIchipdesignedforuseinau-tomaticPIRlampcontrol.Itcanoperatewitha2-wireconfigurationfortriacapplicationsorwitha3-wirecon-figurationforrelayapplications.Thechipisequippedwithoperationalamplifiers,acomparator,timer,azerocrossingdetector,controlcircuit,avoltageregulator,asystemoscillator,andanoutputtimingoscillator.ItsPIRsensordetectsinfraredpowervariationsinducedbythemotionofahumanbodyandtransformsittoa
voltagevariation.IfthePIRoutputvoltagevariationcon-formstothecriteria(refertothefunctionaldescription),thelampisturnedonwithanadjustableduration.TheHT761xoffersthreeoperatingmodes(ON,AUTO,OFF)whichcanbesetthroughtheMODEpin.WhilethechipisworkingintheAUTOmodetheusercanoverrideitandswitchtotheTESTmode,ormanualONmode,orreturntotheAUTOmodebyswitchingthepowerswitch.
SelectionTable
PartNo.HT7610AHT7610BHT7611AHT7611BNote:
ZCOff/OnforOverride2times1timeFlashonMdeAuto-changeFlashNoflashOverrideONDuration8hrs8hrsComparatorWindow1(VDD-VEE)161(VDD-VEE)16EffectiveTriggerWidth>24ms>24msPartnumberssuffixedwithAareforRelayapplicationwhilethosesuffixedwithBareforTriacapplication.
PinAssignment
Rev.1.601March21,2013
HT7610A/HT7610B/HT7611A/HT7611BBlockDiagram
PinDescription
PinNameVSSRELAYTRIACOSCDI/O¾OOI/OInternalConnection¾CMOSCMOSPMOSINNMOSOUTPMOSINNMOSOUTCMOSCMOSDescriptionNegativepowersupply,groundRELAYdriveoutputthroughanexternalNPNtransistor,activehigh.TRIACdriveoutputTheoutputisapulseoutputwhenactive.OutputtimingoscillatorI/OItisconnectedtoanexternalRCtoadjustoutputduration.SystemoscillatorI/OOSCSisconnectedtoanexternalRCtosetthesystemfrequency.Thesystemfrequencyisat16kHzfornormalapplication.InputforACzerocrossingdetectionCDSisconnectedtoaCDSvoltagedividerfordaytime/nightauto-detection.LowinputtothispincandisablethePIRinput.CDSaSchmittTriggerinputwith5-secondinputdebouncetime.Operatingmodeselectioninput:VDD:OutputisalwaysONVSS:OutputisalwaysOFFOpen:AutodetectionPositivepowersupplyRegulatedvoltageoutputTheoutputvoltageis-4VwithrespecttoVDD.Chipresetinput,activelowNoninvertinginputofOP1InvertinginputofOP1OutputofOP1NoninvertinginputofOP2InvertinginputofOP2OutputofOP2OSCSZCCDSI/OIIMODEICMOSVDDVEERSTOP1POP1NOP1OOP2POP2NOP2O¾OIIIOIIO¾NMOSPull-HighPMOSPMOSNMOSPMOSPMOSNMOSRev.1.602March21,2013
HT7610A/HT7610B/HT7611A/HT7611BAbsoluteMaximumRatings
SupplyVoltage.......................................-0.3Vto+13VInputVoltage.............................VSS-0.3VtoVDD+0.3VZeroCrossingCurrent................................Max.300mA
Note:Thesearestressratingsonly.Stressesexceedingtherangespecifiedunder²AbsoluteMaximumRatings²may
causesubstantialdamagetothedevice.Functionaloperationofthisdeviceatotherconditionsbeyondthoselistedinthespecificationisnotimpliedandprolongedexposuretoextremeconditionsmayaffectdevicereliability.
StorageTemperature...........................-50°Cto125°COperatingTemperature..........................-25°Cto70°C
ElectricalCharacteristics
SymbolVDDVEEIDDIOH1IOL1IOL2VIHVILVTH1VTL1VTH2VTL2VOSfSYSfdAVOParameterOperatingVoltageRegulatorOutputVoltageOperatingCurrentOUTPUTSourceCurrent(RELAY,TRIAC)OUTPUTSinkCurrent(RELAY,TRIAC)VEESinkCurrent²H²InputVoltage²L²InputVoltageCDS²H²TransferVoltageCDS²L²TransferVoltageZC²H²TransferVoltageZC²L²TransferVoltageOPAmpInputOffsetVoltageSystemOscillatorFrequencyDelayOscillatorFrequencyOPAmpOpenLoopGainTestConditionVDD¾12V12V12V12V12V¾¾12V12V12V12V12V12V12V12VNoloadROSCS=560kWCOSCS=100pFROSCD=560kWCOSCD=100pFNoloadVDD-VEENoload,OSConVOH=10.8VVOL=1.2VVDD-VEE=4V¾¾¾¾¾¾Condition¾Min.53.5¾-640¾0.8VDD¾6.43.74.71.3¾12.812.860Typ.94.01001280¾¾¾8.04.76.71.810161680Max.124.5350¾¾¾¾0.2VDD9.65.68.72.33519.219.2¾UnitVVmAmAmAmAVVVVVVmVKHzKHzdBFunctionalDescription
VEE
VEEsuppliespowertotheanalogfrontendcir-cuitwithanormallystabilizedvoltageof-4VwithrespecttoVDD.OSCS
OSCSisasystemoscillatorinputpin.WhenitisconnectedtoanexternalRC,asystemfre-quencyof16kHzcanbegenerated.
SystemOscillator
Rev.1.603March21,2013
HT7610A/HT7610B/HT7611A/HT7611BOSCD
OSCDisanoutputtimingoscillatorinputpin.Itiscon-nectedtoanexternalRCtoobtainthedesiredoutputturn-onduration.Variableoutputturn-ondurationscanbeachievedbyselectingvariousvaluesofRCorusingavariableresistor.
CDSLOWHIGHStatusDayTimeNightPIRDisabledEnabled1TD=´21504fMODE
MODEisatristateinputpinusedtoselecttheoperatingmode.
MODEOperatingStatusModeDescriptionOutputisalwaysON:RELAYoutputshighforrelaydriving.TRIACpulsetrainoutputissyn-chronizedbyZCfortriacdriving.OutputisalwaysOFF:RELAYoutputslowforrelaydriving.TRIACoutputshighfortriacdriving.OutputsremainintheoffstateuntilactivatedbyavalidPIRinputtriggersignal.WhenworkingintheAUTOmode,thechipallowsoverridecon-trolbyswitchingtheZCsignal.OutputTimingOscillator
RELAY(TRIAC)
RELAYisanoutputpinsetasaRELAYdriving(activehigh)outputfortheHT7610A/11A,orasaTRIACdriving(activelow)outputfortheHT7610B/11B.
TheoutputactivedurationiscontrolledbytheOSCDos-cillatingperiod.
HT7610A/11AOUTPUTCDS
CDSisaCMOSSchmittTriggerinputstructure.Itisusedtodistinguishbetweendaytimeandnighttime.WhentheinputvoltageofCDSishighthePIRinputisenabled.Ontheotherhand,whenCDSislowthePIRinputisdisabled.Theinputdisabletoenabledebouncetimeis5seconds.ConnectthispintoVDDwhenthisfunctionisnotused.TheCDSinputisignoredwhentheoutputisactive.VDDONVSSOFFHT7610B/11BTRIACOpenAUTORELAYRev.1.60
4
March21,2013
HT7610A/HT7610B/HT7611A/HT7611BZC
ZCisaCMOSinputstructure.ItreceivesAClinefre-quencyandgenerateszerocrossingpulsestosynchro-nizethetriacdriver.ByeffectiveZCsignalswitching(switchOFF/ON1or2timeswithin3secondsbymaskoption),thechipprovidesthefollowingadditionalfunc-tions:
·Testmodecontrol
Within10secondsafterpower-on,effectiveZCswitchingwillforcethechiptoenterthetestmode.Duringthetestmode,theoutputswillbeactiveforadurationof2secondseachtimeavalidPIRtriggersignalisreceived.Ifatimeintervalexceeds32sec-ondswithoutavalidtriggerinput,thechipwillauto-maticallyentertheAUTOmode.
·Overridecontrol
Fig.1RSTApplicationExample
Power-onInitial
ThePIRsignalamplifierrequiresawarmupperiodafterpower-on.Theinputshouldbedisabledduringthisperiod.IntheAUTOmodewithinthefirst10secondsofpower-oninitialization,thechipallowsoverridecontroltoenterthetestmode.After40secondsoftheinitialtimethechipallowsoverridecontrolbetweenONandAUTO.Itwillremaininthewarmupperiodifthetotalini-tialtimehasnotelapsedafterreturningtoAUTO.IncasethattheZCsignaldisappearsformorethan3seconds,thechipwillrestarttheinitializationoperation.However,therestartinitialtimeisalways40secondsandcannotbeextendedbyaddingCRSTtotheRSTpinasshownintheFig.1.MaskOptions
TheHT761xoffersmaskoptionstoselecttheoutputflash(3times)whenchangingtheoperatingmode.Thechipwillflash3timesata1HzrateeachtimeitchangesfromAUTOtoanothermodeandflash3timesata2HzratewhenitreturnstotheAUTOmode.HoweverthechipwillnotflashifthemodeischangedbyswitchingtheMODEswitch.
·Optionsforeffectiveoverride:OnceortwiceOff/Onop-
WhenthechipisworkinginanAUTOmode(MODE=open),theoutputisactivatedbyavalidPIRtriggersignalandtheoutputactivedurationiscon-trolledbyanOSCDoscillatingperiod.Thelampcanbeswitchedalwaysto²ON²fromtheAUTOmodebyeitherswitchingtheMODEpintoVDDorswitchingtheZCsignalbyanOFF/ONoperationofthepowerswitch(OFF/ONonceortwicewithin3secondsbymaskoption).Theterm²override²referstothechangeofoperatingmodebyswitchingthepowerswitch.ThechipcanbetoggledfromONtoAUTObyanoverrideoperation.IfthechipisoverriddentoONandthereisnofurtheroverrideoperation,itwillauto-maticallyreturntoAUTOafteraninternalpresetONtimedurationhaselapsed.ThisoverrideONtimedu-rationis8hours.
Thechipprovidesamaskoptiontodeterminetheout-putflashtimes(3times)whenchangingtheoperatingmode.Itwillflash3timesata1HzrateeachtimethechipchangesfromanAUTOmodetoanothermodeorflash3timesata2HzratewhenreturningtotheAUTOmode.ButiftheAUTOmodeischangedbyswitchingtheMODEswitchitwillnotflash.RSTRSTisusedtoresetthechip.Itisinternalpull-highandactivelow.
TheuseofCRSTcanextendthepower-oninitialtime.IftheRSTpinisanopencircuit(withoutCRST),theinitialtimeisthedefault(40secs).
erationofpowerswitchwithin3seconds.OnceforHT7611A/HT7611BandtwiceforHT7610A/HT7610B.·Optionsforoutputflashtoindicateeffectiveoverrideoperation.FlashforHT7610A/HT7610BandnoflashforHT7611A/HT7611B.
ZCOverrideTimingRev.1.605March21,2013
HT7610A/HT7610B/HT7611A/HT7611BPIRAmplifier
ConsultthediagrambelowfordetailsonthePIRfrontendamplifier.
IntheFig.2belowthereare2op-ampswithdifferentap-plications.OP1canbeusedindependentlyasafirststageinvertingornon-invertingamplifierforthePIR.AstheoutputofOP2isdirectlyconnectedtotheinputofthecomparator,itisusedasasecondstageamplifyingdevice.Thenon-invertinginputofOP2isconnectedtothecomparator¢swindowcenterpointandcanbeusedtocheckthisvoltageandtoprovideabiasvoltagethatisequaltothecenterpointvoltageofthecomparator.In
1
Fig.2thewindowlevelofthecomparatorissetto
16
(VDD-VEE).
SecondStageAmplifier
UsuallythesecondstagePIRamplifierisasimpleca-pacitivelycoupledinvertingamplifierwithalowpassconfiguration.Thenoninvertinginputterminalisbiasedtothecenterpointofthecomparatorwindowandtheoutputofthesecondstageamplifierisdirectlycoupledtothecomparatorcenterpoint.
InFig.3OP2Pisdirectlyconnectedtothecomparatorwindowcenter,andwiththeC3filteritcanactasthe
R2
biasforOP2.ForthisconfigurationAV=,lowcutoff
R1
1
frequencyfL=,highcutofffrequency
2pR1C11
fH=.BychangingthevalueofR2thesensitiv-2pR2C2
itycanbevaried.C1andC3shouldbeoflowleakagetypestopreventtheDCoperatingpointfromchangingduetocurrentleakage.
Eachop-ampcurrentconsumptionisapproximately5mAwiththeop-ampsandcomparator¢sworkingvolt-ageallprovidedbytheregulator.
ConsultthefollowingdiagramsfortypicalPIRfrontendcircuit.
FirstStageofPIRAmplifier
Fig.4showsatypicalfirststageamplifier.C2andR2formasimplelowpassfilterwithcutofffrequencyat7Hz.ThelowfrequencyresponseisgovernedbyR1andC1withcut-offfrequencyat0.33Hz.
AV=
Fig.2PIRAmplifier
ThepresetvoltageofVDD-VEEis4V.Thedefaultvalues
4
ofVCPandVCNaretherefore0.25V,(V).
16
(R1+R2)
R1
Fig.3TypicalSecondStageAmplifier
Rev.1.606March21,2013
HT7610A/HT7610B/HT7611A/HT7611BFig.4andFig.5aresimilarbutinFig.5theinputsignalofamplifieristakenfromthedrainofthePIR.ThishashighergainthanthatinFig.4.SinceOP1isaPMOSin-putVD,ithastobegreaterthan1.2Vforadequateoper-ation.
Fig.5HighGainFirstStage
Fig.4TypicalFirst-StagePIR
TimingDiagram
Note:
Theoutputisactivatedifthetriggersignalconformstothefollowingcriteria:·Morethan3triggerswithin2seconds
·Atriggersignalsustainduration³0.34secs
·2triggersignalswithin2secswithoneofthetriggersignalsustain³0.16secs.Theeffectivecomparatoroutputwidthisselectedtobe24ms.
TheoutputdurationissetbyanexternalRCthatisconnectedtotheOSCDpin.
Rev.1.607March21,2013
HT7610A/HT7610B/HT7611A/HT7611BChange²**²toobtainthedesiredadjustingrangeofoutputduration.
Changethevalueof²***²to0.33mF/600VforAC220Vapplication.
HT7610A/11ARelayApplicationCircuit
ApplicationCircuit
Adjust²*²tofitvariousCDS.
Rev.1.60
Note:
8March21,2013
HT7610A/HT7610B/HT7611A/HT7611BChangethevalueof²***²to0.15mF/600VforAC220Vapplication.
Change²**²toobtainthedesiredadjustingrangeofoutputduration.
HT7610B/11BTRIACApplicationCircuit
Adjust²*²tofitvariousCDS.
Rev.1.60
Note:
9March21,2013
HT7610A/HT7610B/HT7611A/HT7611BPackageInformation
Notethatthepackageinformationprovidedhereisforconsultationpurposesonly.AsthisinformationmaybeupdatedatregularintervalsusersareremindedtoconsulttheHoltekwebsiteforthelatestversionofthepackageinformation.Additionalsupplementaryinformationwithregardtopackagingislistedbelow.Clickontherelevantsectiontobetrans-ferredtotherelevantwebsitepage.
·FurtherPackageInformation(includeOutlineDimensions,ProductTapeandReelSpecifications)·PackingMeterialsInformation·Cartoninformation·PBFREEProducts·GreenPackagesProductsRev.1.6010March21,2013
HT7610A/HT7610B/HT7611A/HT7611B16-pinDIP(300mil)OutlineDimensions
Fig1.FullLeadPackagesFig2.1/2LeadPackages
·MS-001d(seefig1)
SymbolABCDEFGHISymbolABCDEFGHIDimensionsininchMin.0.7800.2400.1150.1150.0140.045¾0.300¾Nom.¾¾¾¾¾¾0.100¾0.430DimensionsinmmMin.19.816.102.922.920.361.14¾7.62¾Nom.¾¾¾¾¾¾2.54¾10.92Max.22.357.114.953.810.561.78¾8.26¾Max.0.8800.2800.1950.1500.0220.070¾0.325¾Rev.1.6011March21,2013
HT7610A/HT7610B/HT7611A/HT7611B·MS-001d(seefig2)
SymbolABCDEFGHISymbolABCDEFGHI·MO-095a(seefig2)
DimensionsininchMin.0.7350.2400.1150.1150.0140.045¾0.300¾Nom.¾¾¾¾¾¾0.100¾0.430DimensionsinmmMin.18.676.102.922.920.361.14¾7.62¾Nom.¾¾¾¾¾¾2.54¾10.92Max.19.697.114.953.810.561.78¾8.26¾Max.0.7750.2800.1950.1500.0220.070¾0.325¾SymbolABCDEFGHISymbolABCDEFGHIDimensionsininchMin.0.7450.2750.1200.1100.0140.045¾0.300¾Nom.¾¾¾¾¾¾0.100¾0.430DimensionsinmmMin.18.926.993.052.790.361.14¾7.62¾Nom.¾¾¾¾¾¾2.54¾10.92Max.19.947.493.813.810.561.52¾8.26¾Max.0.7850.2950.1500.1500.0220.060¾0.325¾Rev.1.6012March21,2013
HT7610A/HT7610B/HT7611A/HT7611B
Rev.1.6013March21,2013
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