Other Parts Discussed in Thread: , TPS23752
Hello,
I would like to ask You for help with our design including TPS23754. This design is following TPS23754EVM-383 EVM, but to be on a safe side I include our schematic (please ignore the blue comments, they are only for picking smaller components in further implementation).
Our problem is that we cannot pass detection and we can not figure, what went wrong because we followed reference design. Here I add also measurement of VDD-VSS from capacitor C2. It seems that PSE is trying to detect something and it is not getting any answer. We are using this PoE Injector: PSE802G-30W.
It seems like there is no response from the PD controller, but how could this happen? If this voltage is also on VDD pin, then the PD should start and do its thing?
Thank You very much for Your help!
Best Regards,
Tomas