价格:未填
供应:99999
发货:3天内
GeneralDescriptionTheLM3402/02HVaremonolithicswitchingregulatorsdesignedtodeliverconstantcurrentstohighpowerLEDs.Idealforautomotive,industrial,andgenerallightingapplications,theycontainahigh-sideN-channelMOSFETswitchwithacurrentlimitof735mA(typical)forstep-down(Buck)regulators.Hystereticcontrolwithcontrolledon-timecoupledwithanexternalresistorallowtheconverteroutputvoltagetoadjustasneededtodeliveraconstantcurrenttoseriesandseries-parallelconnectedarraysofLEDsofvaryingnumberandtype,LEDdimmingbypulsewidthmodulation(PWM),broken/openLEDprotection,low-powershutdownandthermalshutdowncompletethefeatureset.FeaturesnIntegrated0.5AN-channelMOSFETnVINRangefrom6Vto42V(LM3402)nVINRangefrom6Vto75V(LM3402HV)n500mAOutputCurrentOverTemperaturenCycle-by-CycleCurrentLimitnNoControlLoopCompensationRequirednSeparatePWMDimmingandLowPowerShutdownnSupportsall-ceramicoutputcapacitorsandcapacitor-lessoutputsnThermalshutdownprotectionnMSOP-8PackageApplicationsnLEDDrivernConstantCurrentSourcenAutomotiveLightingnGeneralIlluminationnIndustrialLighting