LN2542-E
摘要:85~265VACInputLEDConstantCurrentDriver■GeneralDescriptionTheLN2542isahighvoltagebuckcontrolICforconstantLEDcurrentregulation.TheLN2542operatesconstantoff-timemode.ItallowefficientoperationofHighBrightness(HB)LEDsfromvoltagesourcesrangingfrom8VDCupto450VDCor110VAC/220VAC.TheLN2542includesaPWMdimminginputthatcanacceptanexternalcontrolsignalwithadutyratioof0100%andafrequencyofuptoafewkilohertz,andthedimmingalsoaccepta0-1.2Vlinearinputsignal.TheRNTCpincanaccepta0-250mVLineDimminginputwitchbeusedfortemperaturecompensationoftheLEDcurrent.LN2542isavailablebySOP-8packages.■ApplicationsDC/DCorAC/DCLEDdriverapplicationsRGBbacklightingLEDdriverGeneralpurposeconstantcurrentsourceSignalan
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