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TPS23882: IPC接入NVR时,有个别相机无法正常供电,class读到的数据为Class Overcurrent

Part Number: TPS23882

最近在NVR适配poe功能时,TPS23882出现了一个问题。

工作环境:设置的23882工作模式是自动模式,固件版本号是0x7

现象:在相机接入NVR时,有个别相机无法正常供电,我们设备记录到的对应23882端口的历史峰值功率在10~16w,说明在接入瞬间是有供电的。停止供电后,读寄存器得到的class是Class Overcurrent

问题:请问内部固件是否做了功率限制之类的功能,导致超功率端口强制下电?