TIDRV8312和StellarisMCU三相BLDC马达驱动方案.docx

TIDRV8312和StellarisMCU三相BLDC马达驱动方案.docxTlDRV8312和StellarisMCU三相BLDC马达驱动方案关键字:工业控制,马达驱动,StellarisMCUTI公司的三相BLDC马达驱动套件DK-LM3S-DRV8312采用DRV8312三相马达驱动器和StellarisMCU,是屮电压数字马达控制(DMC)套件,能驱动三相BLDC和永磁同步马达,,,,,系统框图,三相应用框图和DRV8312应用案例电路图,以及DK-LM3S-DRV8312主要特性,马达驱动系统框图,,(on)ofthepowerMOSFETsandintelligentgatedrivedesign,theefficiencyofthesemotordriverscanbeupto97%,whichenablestheuseofsmallerpowersuppliesandheatsinks,,VDDandVDD,-:High-EfficiencyPowerStage(upto97%)withLowRDs(on)MOSFETs(80maatTj=25°C)OperatingSupplyVoltageupto50V(70VAbsoluteMaximum)DRV8312(powerpaddown):()DRV8332(powerpadup):upto8AContinuousPhaseCurrent(13APeak)IndependentControlofThreePhasesPWMOperatingFrequencyupto500kHzIntegratedSelf-ProtectionCircuitsIneludingUndervoltage,Overtemperature,Overload,andShortCircuitProgrammableCycle-by-CycleCurrentLimitProtectionIndependentSupplyandGroundPinsforEachHalfBridgeIntelligentGateDriveandCrossConductionPreventionNoExternalSnubberorSchottkyDiodeisRequiredDRV8312/32应用:□^u».(3OCJWXJ因GNDJB因GVOO^”.ana•ObOflfCGxoOfMOG^ODrXroX益因図冈HCMAGX63'・・IIfPWV4Adv..--LM3S-DRV8312TheMediumVoltageDigitalMotorControl(DMC)kit(DK-LM3S-DRV8312),showninFigure5,providesagreatwaytolearnandexperimentwithdigitalcontrolofmediumvoltagebrushlessmotor