RY4837 低压H桥驱动器 DFN8-2X2 ESOP8 深圳恒锐丰科技.pdf

RY4837

Low-VoltageH-BridgeDriver

Features

•SeparatedH-BridgeMotorDriver•DrivesaDCMotororOtherinductiveLoads

•LowMOSFETOn-resistance:HS+LS280mΩ•MotorVM：0V-12V

•1.8AMaximumDriveCurrentLogicVCC：2.0-5.5V

•OvercurrentProtection(OCP)•Low-powerSleepModeWith1-uAMaximumSleep

•ThermalShutdown(TSD)CurrentcontrolledbynSLEEPpin

•VCCUndervoltageLockout(UVLO)•Thermally-EnhancedSurface-MountSmallPackage

•AutomaticFaultRecoveryandFootprintDFN8-2×2mmandESOP8

•ShortCircuitProtection(SCP)

Applications

•CamerasDSLRLensesFocusing•Robotics

•OfficeAutomationEquipment•SmartDoorLocks

•Toys•AllOtherMotionControlApplications

Description

TheRY4837providesanintegratedmotordriversolutionforcameras,DSLRLenses,toys,smartdoorlocks,robotics

andotherlow-voltageorbattery-poweredmotioncontrolapplications.ThedevicecandriveoneDCmotororother

deviceslikesolenoids.TheoutputdriverblockconsistsofN-channelpowerMOSFET’sconfiguredasanH-bridgeto

drivethemotorwinding.Aninternalchargepumpgeneratesneededgatedrivevoltages.

TheRY4837cansupplyupto1.8Aofoutputcurrent.Itoperatesonamotorpowersupplyvoltagefrom0Vto12V,anda

devicepowersupplyvoltageof2.0Vto5.5V.Internalshutdownfunctionsareprovidedforovercurrentprotection,short