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1、Orderingnumber:ENN5227BThick-FilmHybridICSTK672-040SteppingMotorDriver(SineWaveDrive)OutputCurrent:1.5A(NoHeatSink*)Unipolarconstant-currentchopper(externalexcitationPWM)circuitwithbuilt-inmicrosteppingcontrollerOverview•OneoffivedrivetypescanbeselectedwiththedriveTheSTK672-
2、040isasteppingmotordriverhybridICthatmodesettings(M1,M2,andM3)usespowerMOSFETsintheoutputstage.Itincludesa—2phaseexcitationdrivebuilt-inmicrosteppingcontrollerandisbasedona—1-2phaseexcitationdriveunipolarconstant-currentPWMsystem.TheSTK672-040—W1-2phaseexcitationdrivesupportsapplicationsimplifica
3、tionandstandardizationby—2W1-2phaseexcitationdriveprovidingabuilt-in4phasedistributionsteppingmotor—4W1-2phaseexcitationdrivecontroller.Itsupportsfiveexcitationmethods:2phase,•Providesfourfreelyselectablemodesforthevector1-2phase,W1-2phase,2W1-2phase,and4W1-2phaselocusduringmicrosteppingdrive:cir
4、cularmode,oneexcitations,andcanprovidecontrolofthebasicsteppinginsidemode,andtwooutsidemodes.angleofthesteppingmotordividedinto1/16stepunits.It•Phaseretentionevenifexcitationisswitched.alsoallowsthemotorspeedtobecontrolledwithonlya•Theexcitationphasestatecanbeverifiedinrealtimeclocksignal.fromthe
5、MO1,MO2,andMOIsignaloutputpins.TheuseofthishybridICallowsdesignerstoimplement•TheCLKinputcounterblockcanbeselectedtobeonesystemsthatprovidehighmotortorques,lowvibrationofthefollowingbythehigh/lowsettingoftheM3inputlevels,lownoise,fastresponse,andhigh-efficiencydrive.pin.ComparedtotheearlierSanyoS
6、TK672-010Series,the—RisingedgeonlySTK672-040featuresasmallerpackage,fewerexternal—Bothrisingandfallingedgescomponents,andcontrollerimprovementsforevenhigherefficiencyandevenhigherperformancemicrosteppingmotordrive.Note*:Conditions:VCC1=24V,IOH=1.5A,2W1-2driveused.Continuedonnextpage.ApplicationsP
7、ackageDimensions•Facsimilesteppingmotordrive(sendandreceive)•Paperfeedandopticalsystemsteppingmotordriveinunit:mmcopiers4161•Laserprinterdrumdrive[STK672-040]•Printercarriagesteppingmotordrive•X-Yplotterpendrive53.09.0
