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[TPD12S521] backdrive protection

Chang-woo YANG
Expert 1285 points
Other Parts Discussed in Thread: TPD12S521

Hello~

According to TPD12S521 datasheet on page 1, we can find "backdrive protection" feature.

In case of control pins (such as CEC, DDC, HOTPLUG), the internal FET is high ohmic at power-down and therefore disconnects the input from the output.  so it is "backdrive protection" feature (as I understood).

But in case of TMDS signals, I don't know how to operate the "backdrive protection" feature, and I don't understand what it means this feature.

Please help me.

Thanks... C.W. :)