This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TLK105L: Problem with PoE

Other Parts Discussed in Thread: TLK105L, DP83822IF

Hello support!

We have designed board with TLK105L.

After transformer we have dc source for a PoE divices. So when I try to connect some poe load for example uap-ac-lr (wirless acess point) everithing work is good.

Also we have power n-chanel key on minus 48v dc source. I close the key(Because we don't need a power) and try to connect my board to local net.

But when I try to connect Des1024d to the TLK105L I see the spark. TLK105L start to heating and then I see a short circuit between pin 12 and pin 33.

Like you understood the TLK105L doesn't work after that.

How can I send you the sheme in direct???

BR,

Oleg