搜索
1/25L6229October20041FEATURES■OPERATINGSUPPLYVOLTAGEFROM8TO52V■2.8AOUTPUTPEAKCURRENT(1.4ADC)■RDS(ON)0.73ΩTYP.VALUE@Tj=25°C■OPERATINGFREQUENCYUPTO100KHz■NONDISSIPATIVEOVERCURRENTDETECTIONANDPROTECTION■DIAGNOSTICOUTPUT■CONSTANTtOFFPWMCURRENTCONTROLLER■SLOWDECAYSYNCHR.RECTIFICATION■60°&120°HALLEFFECTDECODINGLOGIC■BRAKEFUNCTION■TACHOOUTPUTFORSPEEDLOOP■CROSSCONDUCTIONPROTECTION■THERMALSHUTDOWN■UNDERVOLTAGELOCKOUT■INTEGRATEDFASTFREEWEELINGDIODES2DESCRIPTIONTheL6229isaDMOSFullyIntegratedThree-PhaseMotorDriverwithOvercurrentProtection.RealizedinMultiPower-BCDtechnology,thedevicecombinesisolatedDMOSPowerTransistorswithCMOSandbipolarcircuitsonthesamechip.Thedeviceincludesallthecircuitryneededtodriveathree-phaseBLDCmotorincluding:athree-phaseDMOSBridge,aconstantofftimePWMCurrentCon-trollerandthedecodinglogicforsingleendedhallsensorsthatgeneratestherequiredsequenceforthepowerstage.AvailableinPowerDIP24(20+2+2),PowerSO36andSO24(20+2+2)packages,theL6229featuresanon-dissipativeovercurrentprotectiononthehighsidePowerMOSFETsandthermalshutdown.DMOSDRIVERFORTHREE-PHASEBRUSHLESSDCMOTORFigure1.PackageTable1.OrderCodesPartNumberPackageL6229NPowerDIP24L6229PDPowerSO36L6229PDTRPowerSO36inTape&ReelL6229DSO24L6229DTRSO24inTape&ReelPowerDIP24(20+2+2)PowerSO36SO24(20+2+2)Rev.3L62292/25Figure2.BlockDiagramTable2.AbsoluteMaximumRatingsSymbolParameterTestconditionsValueUnitVSSupplyVoltageVSA=VSB=VS60VVODDifferentialVoltagebetween:VSA,OUT1,OUT2,SENSEAandVSB,OUT3,SENSEBVSA=VSB=VS=60V;VSENSEA=VSENSEB=GND60VVBOOTBootstrapPeakVoltageVSA=VSB=VSVS+10VVIN,VENLogicInputsVoltageRange-0.3to7VVREFVoltageRangeatpinVREF-0.3to7VVRCOFFVoltageRangeatpinRCOFF-0.3to7VVRCPULSEVoltageRangeatpinRCPULSE-0.3to7VVSENSEVoltageRangeatpinsSENSEAandSENSEB-1to4VIS(peak)PulsedSupplyCurrent(foreachVSAandVSBpin)VSA=VSB=VS;TPULSE1ms3.55AISDCSupplyCurrent(foreachVSAandVSBpin)VSA=VSB=VS1.4ATstg,TOPStorageandOperatingTemperatureRange-40to150°CCHARGEPUMPVOLTAGEREGULATORHALL-EFFECTSENSORSDECODINGLOGICTHERMALPROTECTIONTACHOMONOSTABLEOCD1OCDOCDOCD210V5VVCPVSAGATELOGICVBOOTVBOOTOUT1OUT2SENSEAVSBOUT3SENSEBDIAGENFWD/REVBRAKEH3H1RCPULSED99IN1095BTACHORCOFFH2OCD3ONESHOTMONOSTABLEMASKINGTIMEVBOOTOCD110VVBOOTOCD210VVBOOTOCD310VSENSECOMPARATOR+-PWMVREF3/25L6229Table3.RecommendedOperatingConditionTable4.ThermalDataSymbolParameterTestConditionsMINMAXUnitVSSupplyVoltageVSA=VSB=VS1252VVODDifferentialVoltagebetween:VSA,OUT1,OUT2,SENSEAandVSB,OUT3,SENSEBVSA=VSB=VS;VSENSEA=VSENSEB52VVREFVoltageRangeatpinVREF-0.15VVSENSEVoltageRangeatpinsSENSEAandSENSEB(pulsedtWtrr)(DC)-6-161VVIOUTDCOutputCurrentVSA=VSB=VS1.4ATJOperatingJunctionTemperature-25125°CfSWSwitchingFrequency100KHzSymbolDescriptionPDIP24SO24PowerSO36UnitRth(j-pins)MaximumThermalResistanceJunction-Pins1915°C/WRth(j-case)MaximumThermalResistanceJunction-Case2°C/WRth(j-amb)1MaximumThermalResistanceJunction-Ambient(1)(1)Mountedonamulti-layerFR4PCBwithadissipatingcoppersurfaceonthebottomsideof6cm2(withathicknessof35µm).4455-°C/WRth(j-amb)1MaximumThermalResistanceJunction-Ambient(2)(2)Mountedonamulti-layerFR4PCBwithadissipatingcoppersurfaceonthetopsideof6cm2(withathicknessof35µm).--36°C/WRth(j-amb)1MaximumThermalResistanceJunction-Ambient(3)(3)Mountedonamulti-layerFR4PCBwithadissipatingcoppersurfaceonthetopsideof6cm2(withathicknessof35µm),16viaholesandagroundlayer.--16°C/WRth(j-amb)2MaximumThermalResistanceJunction-Ambient(4)(4)Mountedonamulti-layerFR4PCBwithoutanyheat-sinkingsurfaceontheboard.597863°C/WL62294/25Figure3.PinConnections(Topview)(5)Theslugisinternallyconnectedtopins1,18,19and36(GNDpins).Table5.PinDescriptionPACKAGENameTypeFunctionSO24/PowerDIP24PowerSO36PIN#PIN#110H1SensorInputSingleEndedHallEffectSensorInput1.211DIAGOpenDrainOutputOvercurrentDetectionandThermalProtectionpin.AninternalopendraintransistorpullstoGNDwhenanovercurrentononeoftheHighSideMOSFETsisdetectedorduringThermalProtection.312SENSEAPowerSupplyHalfBridge1andHalfBridge2SourcePin.ThispinmustbeconnectedtogetherwithpinSENSEBtoPowerGroundthroughasensingpowerresistor.413RCOFFRCPinRCNetworkPin.AparallelRCnetworkconnectedbetweenthispinandgroundsetstheCurrentControllerOFF-Time.515OUT1PowerOutputOutput16,7,18,191,18,19,36GNDGNDGroundterminals.OnPowerDIP24andSO24packages,thesepinsarealsousedforheatdissipationtowardthePCB.OnPowerSO36packagetheslugisconnectedonthesepins.822TACHOOpenDrainOutputFrequency-to-Voltageopendrainoutput.EverypulsefrompinH1isshapedasafixedandadjustablelengthpulse.924RCPULSERCPinRCNetworkPin.AparallelRCnetworkconnectedbetweenthispinandgroundsetsthedurationoftheMonostablePulseusedfortheFrequency-to-Voltageconverter.GNDGNDTACHORCPULSESENSEBENFWD/REV132456789VREFVBOOTBRAKEOUT3VSBGNDGND19181716151314D01IN1194A1011122423222120H1DIAGSENSEARCOFFOUT1VSAOUT2VCPH2H3GNDN.C.N.C.VSARCOFFOUT1N.C.N.C.N.C.N.C.N.C.TACHORCPULSEN.C.VSBN.C.N.C.GND132413141516173433242322202119351836GNDGNDD01IN1195AH1SENSEADIAGSENSEBENFWD/REV101112272625H3VREF928OUT2H2VCPBRAKEOUT3VBOOT578323029N.C.N.C.631PowerSO36(5)PowerDIP24/SO245/25L6229PACKAGENameTypeFunctionSO24/PowerDIP24PowerSO36