TPS23753 schematic review

Caner Durmusoglu

Other Parts Discussed in Thread: TPS23753, TPS23753A

We have designed with EVM-004 and it seems that doesn't work on 802.3af PSE, PSE doesn't supply, i cant find problem, also i cant be sure that TPS23753 works on 802.3af exactly. I have attached schematic.

over 9 years ago

0 Darwin Fernandez over 9 years ago

TI__Mastermind 41800 points

Hi Caner,

TPS23753A is a .af PD controller so it should be compatible with .af PSE's if they are compliant to the standard. Can you describe what you mean by "doesn't work"? Is the PSE able to turn on but shuts down? Have you tested with the -004 EVM on the PSE you are testing with?

0 Darwin Fernandez over 9 years ago in reply to Darwin Fernandez

TI__Mastermind 41800 points

Note also the class resistor should be connected to VSS and not RTN.

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TPS23753 schematic review