用作PoE供电的TPS23861参考设计电路—PSE 控制器应用电路
TPS23861四端口以太网供电PSE控制器是易于使用、灵活的IEEE802.3atPSE解决方案。此篇主要介绍了TPS23861特性、应用范围、参考设计电路以及电路分析，帮助大家缩短设计时间。TPS23861特性：引脚分配实现两层印刷电路板(PCB)；开尔文电流检测；4点检测；可选的I2C控制与监视 TPS23861典型应用范围：以太网交换机与路由器；监控网络视频录像机(NVR)和数字视频录像机(DVR)；住宅网关；以太网供电(PoE)直通系统；无线回程 TPS23861参考设计应用电路： 图1TPS23861内部结构图 TheTPS23861 is a four-port PSE for power over ethernet applications. Each of the four ports provides fully automatic detection, classification, protection, and shut down in compliance with the IEEE 802.3at standard.
图2TPS23861参考设计图 TheTPS23861 is an easy-to-use, flexible,IEEE802.3at PSE solution. As shipped, it automatically manages four 802.3at ports without the need for any external control.
TPS23861样板:
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