RY5806AQ28 IEEE 802.3af电气设备接口控制器，集成电源MOSFET转换器 QFN28-5X4 深圳恒锐丰科技.pdf
RY5806AQ28
IEEE802.3afelectricalequipmentinterfacecontroller,integratedpower
MOSFETconverter
Features
•MeetsIEEE802.3afSpecifications•Support13WPoEPowerApplication
•Reliable100V,0.48Ω(typ.)hot-swapMOSFET•Integrated160VSwitchingPowerMOSFET
•SupportsPrimary-SideRegulatedFlybackwithout•Upto3AProgrammableSwitchingCurrentLimit
Opto-CouplerFeedback•180mAmaximuminrushcurrentlimit
•Over-temperatureprotection•CurrentLimitDuringNormalOperationBetween
•SupportsPrimary-SideRegulatedFlybackwithout720mAand920mA
Opto-CouplerFeedback•AvailableinQFN28-5×4package
Applications
•PowerreceivingequipmentconformingtoIEEE•Securitycamera
802.3afstandardSecurityCameraSystems•IPphone
•RemoteInternetPower•Wirelessaccesspoint
GeneralDescription
RY5806AQ28providesacompletesolutionforelectricalequipmentincompliancewithPoweroverEthernet(PoE)
systemoftheIEEE802.3afstandard.ProvidePDwithdetectionsignal,classificationsignalandintegratedisolation
powerswitchwithinrushcurrentcontrol.Duringthesurge,thecurrentislimitedto180mAuntiltheisolatedpower
MOSFETisfullyturnedonandswitchedtoahighercurrentlimitvalue(720mAto920mA)aswellas100VHot-
swapMOSFET.TheDCDCconverterusesfixedpeakcurrentandvariablefrequencydiscontinuousconduction
mod