DRV8818 Stepper Motor Controller IC (Rev. E) - …

1 8 to 35 VDRV8818 Stepper Motor DriverSTEPDIRHOMEnControllerProtectionSt ep AProductFolderSample &BuyTechnicalDocumentsTools &SoftwareSupport &CommunityReferenceDesignAn IMPORTANTNOTICEat the end of this datasheetaddressesavailability,warranty, changes,use in safety-criticalapplications,intellectual propertymattersand SEPTEMBER2011 REVISEDJANUARY2016 DRV8818 StepperMotorControllerIC11 Features1 PulseWidthModulation(PWM)MicrosteppingMo torDriver Built-InMicrosteppingIndexer Up to 8 Microsteps/Step Stepand DirectionControl ProgrammableMixedDecay,Blanking,and OffTime Up to Winding Low (HS + LS) MOSFETRDS(ON)(25 C) 8-V to 35-VOperatingSupplyVoltageRange Pin to Pin Upgradefor DRV8811 WithLowerRDS(ON) Thermally-EnhancedSurfaceMountPackage ProtectionFeatures VM UndervoltageLockout(UVLO) OvercurrentProtection(OCP) ThermalShutdown(TSD)

2 2 Applications Printers TextileMachinery Positioning/Tracking FactoryAutomation Robotics3 DescriptionThe DRV8818providesan integratedsteppermotordriversolutionfor printers,scanners, ,as wellas microsteppingindexerlogicto controla eachconsistsof N-channelpowerMOSFET sconfiguredas full H-bridgesto drivethe simpleSTEP/DIRECTION interfaceallowseasyinterfacingto modepins allowfor configurationof the motorin full-step,half-step,quarter-step,or time are providedfor overcurrentprotection,shortcircuitprotec tion,under-voltagelockoutand packagedin a 28-pinHTSSOP packagewith PowerPAD .DeviceInformation(1)PARTNUMBERPACKAGEBO DYSIZE(NOM) DRV8818 HTSSOP(28) x (1) For all availablepackages,see the orderableaddendumatthe end of the SEPTEMBER2011 : DRV8818 SubmitDocumentationFeedbackCopyright 2011 2016,TexasInstrumentsIncorporatedTableof Contents1 Pin Configurationand Applicationand Deviceand Mechanical,Packaging,and RevisionHistoryNOTE.

3 Pagenumbersfor previousrevisionsmay differfrompagenumbersin the (January2015)to RevisionEPage Changedthe minimumvaluefor Movedthe motordrivertimingto (November2013)to RevisionDPage AddedESDR atingtable,FeatureDescriptionsection,Dev iceFunctionalModes,Applicationand Implementationsection,PowerSupplyRecomme ndationssection,Layoutsection,Deviceand DocumentationSupportsection,andMechanica l,Packaging,and (Otober2012)to RevisionCPage ChangedLogic-LevelInputstest conditionsin the (PPAD) SEPTEMBER2011 REVISEDJANUARY2016 ProductFolderLinks: DRV8818 SubmitDocumentationFeedbackCopyright 2011 2016,TexasInstrumentsIncorporated(1)Dire ctions:I = input,O = output,OZ = 3-stateoutput,OD = open-drainoutput,IO = input/output5 Pin Configurationand FunctionsPWPP ackage28-PinHTSSOPTop ViewPin FunctionsPINTYPE(1) F capacitorbetweenCP1and F capacitorbetweenCP1and , 21 DevicegroundVCC10 LogicsupplyvoltageConnectto 3-V to 5-V GNDwith a F F ceramiccapacitorto GNDwith a F BridgeA powersupplyConnectto motorsupply(8 V to 35 V).

4 BothVMAand VMBmustbe BridgeB powersupplyCONTROLDECAY5 IDecaymodeselectVoltageappliedsets decaymode- see motordriverdescriptionfor GNDwith a F the directionof to disabledeviceoutputs,logiclow to BridgeA ground/ IsenseConnectto currentsenseresistorfor bridgeAISENB14 BridgeB ground/ IsenseConnectto currentsenseresistorfor bridgeBRCA6 IBridgeA blankingand off time adjustConnecta parallelresistorand capacitorto GND- see blankingand off time adjustConnecta parallelresistorand capacitorto GND- see indexerlogicand disablesthe to enabledevice,logiclow to , synchronousrectificationis indexerto moveone USM1set the step mode- full step,half step,quarterstep,or USM1set the step mode- full step,half step,quarterstep,or referenceinputReferencevoltagefor windingcurrentset4 DRV8818 SLVSAX9E SEPTEMBER2011.

5 DRV8818 SubmitDocumentationFeedbackCopyright 2011 2016,TexasInstrumentsIncorporatedPin Functions(continued)PINTYPE(1) output1 Connectto bipolarsteppermotorwindingAOUT225 OBridgeA output2 Positivecurrentis AOUT1 AOUT2 BOUT111 OBridgeB output1 Connectto bipolarsteppermotorwindingBOUT218 OBridgeB output2 Positivecurrentis BOUT1 BOUT2 HOMEn2 OHomepositionLogiclow whenat homestateof step table,logichigh at otherstates(1)Stressesbeyondthoselistedu nderAbsoluteMaximumRatingsmay causepermanentdamageto the stressratingsonly,and functionaloperationof the deviceat theseor any otherconditionsbeyondthoseindicatedunder RecommendedOperatingConditionsis not absolute-maximum-ratedconditionsfor extendedperiodsmay affectdevicereliability.

6 (2)All voltagevaluesare with respectto networkgroundterminal.(3)Powerdissipatio nand thermallimitsmustbe observed.(4)Transientsof 1V for less than25nsare (unlessotherwisenoted)(1) (2) (3)MINMAXUNITVMXP owersupplyvoltage voltage (4)Pin voltage (peak)PeakmotordriveoutputcurrentInterna llylimitedPDContinuoustotal powerdissipationSeeThermalInformationTJO peratingjunctiontemperature 40150 CTstgStoragetemperature 60150 C(1)JEDEC documentJEP155statesthat 500-VHBM allowssafe manufacturingwith a standardESDcontrolprocess.(2)JEDEC documentJEP157statesthat 250-VCDM allowssafe manufacturingwith a (ESD)ElectrostaticdischargeHumanbodymode l(HBM),per ANSI/ESDA/JEDECJS-001,all pins(1) 4000 VChargeddevicemodel(CDM),per JEDEC specificationJESD22-C101,all pins(2) 1000(1)All VMpins mustbe connectedto the 25 C (unlessotherwisenoted)MINNOMMAXUNITVMM otorpowersupplyvoltage(1) SEPTEMBER2011 REVISEDJANUARY2016 ProductFolderLinks.

7 DRV8818 SubmitDocumentationFeedbackCopyright 2011 2016,TexasInstrumentsIncorporated(1)For moreinformationabouttraditionaland new thermalmetrics,see theSemiconductorand IC PackageThermalMetricsapplicationreport, (1) DRV8818 UNITPWP(HTSSOP)28 PINSR C/WR JC(top)Junction-to-case(top) C/WR JBJunction-to-boardthermalresistance14 C/W C/W C/WR JC(bot)Junction-to-case(bottom) 25 C (unlessotherwisenoted)PARAMETERTESTCONDI TIONSMINTYPMAXUNITPOWERSUPPLIESIVMVM operatingsupplycurrentVM= 35 V, fPWM< 50 KHz710mAIVCCVCC operatingsupplycurrentfPWM< 50 35 V320 V 33 A ICHOPC hoppingcurrentaccuracyVREF= V, 70%to 100%current 5%5%VREF= V, 20%to 56%current 10%10%LOGIC-LEVELINPUTSVILI nputlow VCCVVIHI nputhigh VCCVVHYSI nputhysteresis300mVIILI nputlow currentVIN = VCC 2020 AIIHI nputhigh currentVIN = VCC 2020 ARPUP ullupresistanceENABLEn,RESETn1M RPDP ulldownresistanceDIR,STEP,SLEEPn,USM1,US M0.

8 SRn1M HOMEnOUTPUTVOLO utputlow voltageIO= 200 VCCVVOHO utputhigh voltageIO= 200 VCCVDECAYINPUTVILI nputlow thresholdvoltageFor fast VCCVVIHI nputhigh thresholdvoltageFor VCCVH-BRIDGEFETSRds(on)HS FET on resistanceVM= 24 V, IO= A, TJ= 25 Rds(on)LS FET on resistanceVM= 24 V, IO= A, TJ= 25 IOFF 2020 APROTECTIONCIRCUITSTTSDT hermalshutdowntemperatureDie temperature150160180 stRETOCP retrytime800 sSTEPDIR, USMxSLEEPn, ENABLEn, RESETn123456 OUTPUT81079116 DRV8818 SLVSAX9E SEPTEMBER2011 : DRV8818 SubmitDocumentationFeedbackCopyright 2011 2016, 25 C (unlessotherwisenoted)MINNOMMAXUNIT1fSTE PS tepfrequency500kHz2tWH(STEP)Pulseduratio n,STEP high1 s3tWL(STEP)Pulseduration,STEPlow1 s4tSU(STEP)Setuptime,commandbeforeSTEP rising200ns5tH(STEP)

9 Holdtime,commandafterSTEP rising200ns6tWAKEW akeuptime,SLEEP ninactivehigh to STEP inputaccepted1ms7tSLEEPS leeptime,SLEEP nactivelow to outputsdisabled5 s8tENABLEE nabletime,ENABLE ninactivehigh to outputsenabled20 s9tDISABLED isabletime,ENABLE nactivelow to outputsdisabled20 s10tRESETRR esetreleasetime,RESET ninactivehigh to outputsenabled5 s11tRESETR esettime,RESET nactivelow to outputsdisabled5 25 C (unlessotherwisenoted)PARAMETERTESTCONDI TIONSMINTYPMAXUNITtOFFOff timeRx = 56 k , Cx = 680 pF354453 stBLANKC urrentsenseblankingtimeRx = 56 k , Cx = 680 pF90012501500nstDTDeadtimeSRn= 0100475800nstRRisetime1080nstFFall time1080nsFigure1. TimingDiagramTemperature (qC)RDS(on) HS + LS (m:)-40-20020406080100270300330360390420 450480510D0038 V24 V35 VVM (V)RDS(on) HS LS (m:)691215182124273033362753003253503754 00425450475500525D004 qC25qC85qCTemperature (qC)IVM (mA) V24 V35 VTemperature (qC)IVMQ (PA)-40-200204060801000123456D0028 V24 V35 SEPTEMBER2011 REVISEDJANUARY2016 ProductFolderLinks: DRV8818 SubmitDocumentationFeedbackCopyright 2011 2016, IVMvs TemperatureFigure3.

10 IVMQvs TemperatureFigure4. RDS(ON)HS + LS vs TemperatureFigure5. RDS(ON)HS + LS vs VM8 DRV8818 SLVSAX9E SEPTEMBER2011 : DRV8818 SubmitDocumentationFeedbackCopyright 2011 2016,TexasInstrumentsIncorporated7 DRV8818is a highlyconfigurable,integratedmotordriver solutionfor deviceintegratestwo H-bridges,currentsenseand regulationcircuitry,and a DRV8818canbe poweredwith a supplyvoltagebetween8 V and 35 V and is capableof providingan outputcurrentup to simpleSTEP/DIRinterfaceallowsfor easyinterfacingto the internalindexeris ableto executehigh-accuracymicrosteppingwithout requiringthe controllerto managethe currentregulationis highlyconfigurable,withthreedecaymodesof fast,slow,andmixeddecay.