About TPS2379EVM-106 design

Adrian Chen

Prodigy 50 points

Other Parts Discussed in Thread: TPS2379EVM-106, TPS2379

Hi,

Is TPS2379EVM-106 designed to comply with Cisco UPOE PSE?

Since it is my customer ask for it.

Thanks and Regards

over 13 years ago

0 Eric Wright over 13 years ago

TI__Mastermind 42795 points

Yes.

0 Adrian Chen over 13 years ago in reply to Eric Wright

Prodigy 50 points

Hi,Eric

Excuse me I may not have my question described clearly...

Can I double chk again,

for comply with 60w over 4 pairs UPoE Cisco switch in hardware circuit ,

we need two TPS2379 chip + dcdc, or one TPS2379 chip + dcdc, and why?



Thanks.

0 Eric Wright over 13 years ago in reply to Adrian Chen

TI__Mastermind 42795 points

The TPS2379EVM circuit as designed can support a 60W load using a single TPS2379. TPS2379 provides the converter ON/OFF signal (CDB). You would have to add the dc/dc to the TPS2379 circuit as well as the PHY and supporting software to handle the LLDP communication (and any UPoE required software) with the PSE (TPS2379 doesn't do that part).

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About TPS2379EVM-106 design