RY7315 30V 1.5A 1MHz 同步降压可调光LED驱动器 SOT23-6 深圳恒锐丰科技.pdf

RY7315

30V1.5A1MHzSyncStep-DownDimmableLEDDriver

Features

•Wide4.5Vto30VOperatingInputRange•120mΩ/70mΩLowRDS(ON)InternalPower

•1.5AContinuousOutputCurrentMOSFETs

•Fixed1MHzSwitchingFrequency•HighEfficiency

•Overtemperatureprotection•PWMandAnalogDimming

•Built-inOverCurrentLimit•ThermalShutdown

•Built-inOverVoltageProtection•AvailableinSOT23-6Package

•InternalSoft-Start•-40°Cto+85°CTemperatureRange

Applications

•CCTV/IPCamera•Signs/EmergencyLighting

•Automotive/DecorativeLEDLighting•LEDBacklighting

•Low-VoltageHalogenReplacement•Low-VoltageGeneralIllumination

GeneralDescription

TheRY7315isstep-downregulatorfordimmableLEDdriver,whichisdesignedincontinuouscurrentmodefor

drivingthehigh-brightnessLEDsfromawideinputvoltageof4.5Vto30V.Itsupportstheanalogdimmingsignal

0.65V-1.2VtoachievedimmableLEDlightingapplication.TheRY7315includesunder-voltagelockoutand

thermaloverloadprotectiontopreventdamageintheeventofanoutputoverload.

TheRY7315requiresaminimalnumberofreadilyavailableexternalcomponentsandisavailableinaspacesaving

SOT23-6package.

TypicalApplicationCircuit

V4.5V-30VL6.8μHV

IN451OUT

INSW