TPS23730EVM-093: POE bt to support 24~48V adaptor

Frank Chang

Part Number: TPS23730EVM-093
Other Parts Discussed in Thread: TPS23730

Tool/software:

It's an urgent case from Delta.

We would like TPS23730 to support adaptor 24~48V. How to modify TPS23730EVM-093 schematic to support this adaptor range? What is the new transformer spec like?

We like to disable POE while adaptor appliing and adaptor is first priority.

Regards,

Frank

6 months ago

0 Diang Xing 6 months ago

TI__Mastermind 37031 points

Hi Frank,

Thanks for reaching out. I worked with Barton Tung on a flyback using 24 - 48V adapter which could be related to the same Delta project. This used option 2 of Advanced Adapter ORing Solutions using the TPS23753 (Rev. A PoE PD will be disabled when adapter is connected and APD pin is high.

Please let me know if you are asking a different case.

Best regards,

Diang

0 Frank Chang 6 months ago in reply to Diang Xing

Prodigy 20 points

Hi Diang,

Thanks for your help. It's the same project. Since E2E is an public forum, I cannot post my schematic here. Btw, we prefer flyback+option2, it's simple and seems robust to surge.

Regards,

Frank

0 Diang Xing 6 months ago in reply to Frank Chang

TI__Mastermind 37031 points

Hi Frank,

Thanks for your information. I have checked the schematic with Barton and it uses Option2. Hope you and he have got aligned.

I will close this thread for now.

Best regards,

Diang

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TPS23730EVM-093: POE bt to support 24~48V adaptor