DRV8802 DC Motor Driver IC - TI.com

1 PHASEC urrent LvlDecay V to 45 VControllerM+ + DRV8802 Current ControlStepper Motor AENBLnFAULTP roductFolderSample &BuyTechnicalDocumentsTools &SoftwareSupport &CommunityDRV8802 SLVSAM9D APRIL2011 REVISEDDECEMBER2015 DRV8802DC MotorDriverIC1 Features3 DescriptionTheDRV8802providesan integratedmotordriver1 45-VOperatingSupplyVoltageRangesolutionf or printers,scanners,and otherautomated devicehas two H-bridge DriveTwo DC Motorsdrivers,andis intendedto driveDC eachconsistsof N-channel BrakeModepowerMOSFET s configuredas H-bridgesto drive FourLevelWindingCurrentControlthe DRV8802can supplyup to 24 V and (withproper25 Cheatsinkingat 24 V and 25 C) per H-bridge. IndustryStandardParallelDigitalControlIn terfaceA simpleparalleldigitalcontrolinterfaceis compatible Low allowbrakingor coastingof the SmallPackageFootprintInternalshutdownfun ctionsare providedfor over ProtectionFeaturescurrentprotection,shor tcircuitprotection,under OvercurrentProtection(OCP)voltagelockout and overtemperature.

2 ThermalShutdown(TSD)TheDRV8802is availablein a 28-pinHTSSOP VM UndervoltageLockout(UVLO)packagewith PowerPAD (Eco-friendly:RoHS& no FaultConditionIndicationPin (nFAULT)Sb/Br). ThermallyEnhancedSurfaceMountPackageDevi ceInformation(1)PARTNUMBERPACKAGEBODYSIZ E(NOM)2 ApplicationsDRV8802 HTSSOP(28) Printers(1) For all availablepackages,see the orderableaddendumat Scannersthe end of the datasheet. OfficeAutomationMachines GamingMachines FactoryAutomation RoboticsSimplifiedSchematic1An IMPORTANTNOTICEat the end of this datasheetaddressesavailability,warranty, changes,use in safety-criticalapplications,intellectual propertymattersand APRIL2011 Contents1 Applicationand Pin Configurationand Deviceand Mechanical,Packaging,and RevisionHistoryNOTE:Pagenumbersfor previousrevisionsmay differfrompagenumbersin the (August2013)to RevisionDPage AddedESDR atingstable,FeatureDescriptionsection,De viceFunctionalModes,ApplicationandImplem entationsection,PowerSupplyRecommendatio nssection,Layoutsection,DeviceandDocumen tationSupportsection,andMechanical,Packa ging, 2011 2015,TexasInstrumentsIncorporatedProduct FolderLinks.

3 DRV8802123456789101112131415161718192827 26252423222120 GND(PPAD) APRIL2011 REVISEDDECEMBER20155 Pin Configurationand FunctionsPWPP ackage28-PinPackageTop ViewPin FunctionsPINEXTERNALCOMPONENTSI/O(1)DESC RIPTIONOR CONNECTIONSNAMEPINPOWERANDGROUNDCP11 IOChargepumpflyingcapacitorConnecta F 50-VcapacitorbetweenCP1and , 28 DevicegroundConnecta F 16-VceramiccapacitorandVCP3 IOHigh-sidegatedrivevoltagea 1-M resistorto BridgeA powersupplyConnectto motorsupply( V to 45 V). Bothpins mustbe connectedto the samesupply,bypassedwith a F capacitorto GND,VMB11 BridgeB powersupplyand connectedto GNDwith a F, be usedto enableLogichigh to enablebridgeAAI024 ISetsbridgeA current:00 = 100%,BridgeA currentset01 = 71%,10 = 38%,11 = 0AI125 IAPHASE20 IBridgeA phase(direction)Logichigh sets AOUT1high,AOUT2lowReferencevoltagefor be drivenindividuallywith an externalAVREF12 IBridgeA currentset referenceinputDACfor microstepping,or tied to a reference(for example,V3P3 OUT).

4 BENBL22 IBridgeB enableLogichigh to enablebridgeBBI026 ISetsbridgeB current:00 = 100%,BridgeB currentset01 = 71%,10 = 38%,11 = 0BI127 IBPHASE23 IBridgeB phase(direction)Logichigh sets BOUT1high,BOUT2lowReferencevoltagefor be drivenindividuallywith an externalBVREF13 IBridgeB currentset referenceinputDACfor microstepping,or tied to a reference(for example,V3P3 OUT).Low = brake(slowdecay),DECAY19 IDecay(brake)modehigh = coast(fastdecay)Active-lowresetinputinit ializesinternallogicnRESET16 IResetinputand disablesthe H-bridgeoutputs(1)Directions:I = input,O = output,OZ = tri-stateoutput,OD = open-drainoutput,IO = input/outputCopyright 2011 2015,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback3 ProductFolderLinks: DRV8802 DRV8802 SLVSAM9D APRIL2011 Functions(continued)PINEXTERNALCOMPONENT SI/O(1)DESCRIPTIONOR CONNECTIONSNAMEPINL ogichigh to enabledevice,logiclow to enternSLEEP17 ISleepmodeinputlow-powersleepmodeSTATUSL ogiclow whenin fault condition(overtemp,nFAULT18 ODFaultovercurrent)OUTPUTAOUT15 OBridgeA output1 Connectto motorwindingAAOUT27 OBridgeA output2 BOUT110 OBridgeB output1 Connectto motorwindingBBOUT28 OBridgeB output2 ISENA6 IOBridgeA ground/ IsenseConnectto currentsenseresistorfor bridgeAISENB9 IOBridgeB ground/ IsenseConnectto currentsenseresistorfor bridgeB6 (unlessotherwisenoted)(1) (2)MINMAXUNITVMxPowersupplyvoltage sDigitalpin voltage voltage(3) ,t < 1 SInternallylimitedAContinuousmotordriveo utputcurrent(4) 40150 CTAO peratingambienttemperature 4085 CTstgStoragetemperature 60150 C(1)

5 StressesbeyondthoselistedunderAbsoluteMa ximumRatingsmay causepermanentdamageto the stressratingsonly,whichdo not implyfunctionaloperationof the deviceat theseor any otherconditionsbeyondthoseindicatedunder RecommendedOperatingConditions. Exposureto absolute-maximum-ratedconditionsfor extendedperiodsmay affectdevicereliability.(2)All voltagevaluesare with respectto networkgroundterminal.(3)Transientsof 1 V for less than25 ns are acceptable(4)Powerdissipationand thermallimitsmustbe (HBM),per ANSI/ESDA/JEDECJS-001,all pins(1) 2000V(ESD)ElectrostaticdischargeVCharged devicemodel(CDM),per JEDEC specificationJESD22-C101, 500all pins(2)(1)JEDEC documentJEP155statesthat 500-VHBM allowssafe manufacturingwith a standardESDcontrolprocess.(2)JEDEC documentJEP157statesthat 250-VCDM allowssafe manufacturingwith a 2011 2015, APRIL2011 (unlessotherwisenoted)MINNOMMAXUNITVMM otorpowersupplyvoltagerange(1) (2) current1mA(1)All VMpins mustbe connectedto the samesupplyvoltage.

6 (2)Operationalat VREF between0 V and 1 V, but accuracyis (1)PWP(HTSSOP)UNIT28 PINSR C/WR JC(top)Junction-to-case(top) C/WR C/W C/W C/WR JC(bot)Junction-to-case(bottom) C/W(1)For moreinformationabouttraditionaland new thermalmetrics,see theSemiconductorandICPackageThermalMetri csapplicationreport, 2011 2015,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback5 ProductFolderLinks: DRV8802 DRV8802 SLVSAM9D APRIL2011 (unlessotherwisenoted)PARAMETERTESTCONDI TIONSMINTYPMAXUNITPOWERSUPPLIESIVMVM operatingsupplycurrentVM= 24 V, fPWM< 50 kHz58mAIVMQVM sleepmodesupplycurrentVM= 24 V1020 AVUVLOVM 0 to 1 mA, VM= 24 V, TJ= 25 0 to 1 currentVIN = 0 2020 AIIHI nputhigh currentVIN = V100 AnFAULTOUTPUT(OPEN-DRAINOUTPUT)VOLO utputlow voltageIO= 5 leakagecurrentVO= V1 ADECAYINPUTVILI nputlow thresholdvoltageFor thresholdvoltageFor fast decaymode2 VIINI nputcurrent 40 AH-BRIDGEFETSVM= 24 V, IO= 1 A, TJ= 25 (ON)HS FET on resistance VM= 24 V, IO= 1 A, TJ= 85 24 V, IO= 1 A, TJ= 25 (ON)

7 LS FET on resistance VM= 24 V, IO= 1 A, TJ= 85 2020 stRRisetimeVM= 24 V100360nstFFall timeVM= 24 sPROTECTIONCIRCUITSIOCPO vercurrentprotectiontrip temperature150160180 CCURRENTCONTROLIREFxVREF inputcurrentxVREF= V 33 AxVREF= V, 100%currentsetting635660685 VTRIPxISENSE trip voltagexVREF= V, 71%currentsetting445469492mVxVREF= V, 38%currentsetting225251276 AISENSEC urrentsenseamplifiergainReferenceonly5V/ V6 SubmitDocumentationFeedbackCopyright 2011 2015,TexasInstrumentsIncorporatedProduct FolderLinks:DRV8802800100012001400160018 0020001015202530354045 RDS(ON) HS + LS (m ) V(VMx) (V) -40 C25 C85 C125 CC003 800100012001400160018002000 50 25 0255075100125 RDS(ON) HS + LS (m ) TA ( C) 10 V24 V45 VC004 (mA) V(VMx) (V) 25 C85 C125 CC001 678910111213141015202530354045 IVMQ ( A) V(VMx) (V) -40 C25 C85 C125 CC002 APRIL2011 IVMxvs V(VMx)Figure2. IVMxQvs V(VMx)Figure4. RDS(ON)vs TemperatureFigure3. RDS(ON)vs V(VMx)Copyright 2011 2015,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback7 ProductFolderLinks: DRV8802 DRV8802 SLVSAM9D APRIL2011 DRV8802is an integratedmotordriversolutionfor two brushedDC deviceintegratestwoNMOSH-bridges,current sense,regulationcircuitry,and detailedfault DRV8802can be poweredwith a V to 45 V and is capableof providingan outputcurrentup to PHASE/ENBL interfaceallowsfor simpleinterfacingto the windingcurrentcontrolallowsthe externalcontrollerto adjustthe regulatedcurrentthat is providedto the currentregulationishighlyconfigurable,wi th two decaymodesof slowdecaycan be selecteddependingon low-powersleepmodeis includedwhichallowsthe systemto savepowerwhennot drivingthe 2011 2015,TexasInstrumentsIncorporatedProduct FolderLinks: DRV8802 ChargePumpThermalShut FmVMVMAVMBCP1CP2 VCPISENAISENBAENBLAI0 BPHASEBENBLAVREFHS GateDriveVMVMI nternalReference &RegsInt.

8 VCCM otorDriver BnFAULTC ontrolLogicnRESETM otorDriver APRIL2011 2011 2015,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback9 ProductFolderLinks: DRV8802 AOUT1 AOUT2 BOUT1 BOUT2 VMVMAISENBISENAPHASEPre-drivePre-driveVC P, VGDVMVM+-PWMVCP, VGD+-PWMAVREFOCPOCPOCPOCPDECAYBENBLDACDA CA = 5A = 5BI[1:0]2 AENBLBPHASEAI[1:0]2 BVREFDCMDCMDRV8802 SLVSAM9D APRIL2011 DRV8802containstwo H-bridgemotordriverswith showsa blockdiagramof the MotorControlCircuitryNotethat thereare multipleVM VM pins mustbe connectedtogetherto the DRV8802is fully protectedagainstundervoltage,overcurrent ,and 2011 2015,TexasInstrumentsIncorporatedProduct FolderLinks: DRV8802 REFXCHOPISENSEVI5 R APRIL2011 REVISEDDECEMBER2015 FeatureDescription(continued) (OCP)An analogcurrentlimit circuiton eachFETlimitsthe currentthroughthe FETby removingthe thisanalogcurrentlimit persistsfor longerthanthe OCPtime,all FETsin the H-bridgeare disabledand the nFAULTpin are drivenlow.

9 The deviceremainsdisableduntil eithernRESETpin is applied,or VM is removedand bothhigh and low side devices;that is, a short-to-ground,supply,or acrossthe motorwindingresultsin an overcurrentprotectiondoesnot use the currentsensecircuitryusedfor PWMcurrentcontrol,and is independentof the ISENSE resistorvalueor (TSD)If the die temperatureexceedssafelimits,all FETsin the H-bridgeare disabledand the nFAULTpin are drivenlow. Oncethe die temperaturehas fallento a safe (UVLO)If at any time the voltageon the VM pins falls belowthe undervoltagelockoutthresholdvoltage,all circuitryin thedeviceis disabledand xPHASE inputpinscontrolthe directionof currentflow througheachH-bridge,and hencethe directionofrotationof a DC xENBL inputpinsenablethe H-bridgeoutputswhenactivehigh,and can alsobeusedfor PWMspeedcontrolof the showsthe H-BridgeLogicxENBLxPHASExOUT1xOUT20 Xsee(1)see(1)11HL10LH(1)Dependson stateof the DECAYpin. currentthroughthe motorwindingsis regulatedby a fixed-frequencyPWMcurrentregulation,or H-bridgeis enabled,currentrisesthroughthe windingat a rate dependenton the DC voltageand inductanceof the currenthits the currentchoppingthreshold,the bridgedisablesthecurrentuntil the beginningof the next steppingmotors,currentregulationis normallyusedat all times,and can changingthe currentcan be usedto microstepthe DC motors,currentregulationis usedto limit the start-upand stall currentof PWMchoppingcurrentis set by a comparatorwhichcomparesthe voltageacrossa currentsenseresistorconnectedto the xISEN pins,multipliedby a factorof 5, with a referencevoltageis inputfromthe xVREF pins,and is scaledby a 2-bitDACthat allowscurrentsettingsof 100%,71%,38%of full-scale,plus full-scale(100%)choppingcurrentis calculatedin Equation1.

10 (1)Example:If a senseresistoris usedand the VREF xpin is V, the full-scale(100%)choppingcurrentis V /(5 ) = 2011 2015,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback11 ProductFolderLinks: DRV8802 DRV8802 SLVSAM9D APRIL2011 inputpins per H-bridge(xI1 and xI0) are usedto scalethe currentin eachbridgeas a percentageof the full-scalecurrentset by the VREF inputpin and functionof the pins is shownin H-BridgePin FunctionsRELATIVECURRENTxI1xI0(% FULL-SCALECHOPPINGCURRENT)110% (Bridgedisabled)1038%0171%00100%Notethat whenbothxI bits are 1, the H-bridgeis disabledand no :If a senseresistoris usedand the VREFpin is V, the choppingcurrentis at the 100%setting(xI1,xI0 = 00). At the 71%setting(xI1,xI0 = 01) the currentis , and at the38%setting(xI1,xI0 = 10) the currentis If (xI1,xI0 = 11) the bridgeis disabledandno BrakingDuringPWMcurrentchopping,the H-bridgeis enabledto drivecurrentthroughthe motorwindinguntil the PWMcurrentchoppingthresholdis shownin Figure6 as case1.