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寻求TI合适的POE级联方案

Other Parts Discussed in Thread: TPS23881

请教下,TI有合适的POE级联方案吗?我这边产品应用是,一个主的POE PSE控制器,支持BT规范的,输入多个电源端口,每个电源端口上可以级联超过5台以上的设备。初步的设想是级联的设备使用PD,然后PD的前级手拉手扩展到5级。但后面了解到POE握手可能办法与后级的PD设备通讯成功,请问下TI有类似POE级联的成熟方案吗?如有其他可执行的方案也请告知,感谢