Hi user6002590,

Can you send me your schematic and explain the detailed test condition while you had this issue. Thanks.

Best regards,

Penny

Thanks for the updates.

Best regards,

Penny

Hi User,

Do you have an update on this post for Dave? Thanks!

Hi user6002590,

As it has been some time since anyone at TI responded to you, I wanted to reach out and let you know we have not forgotten about you.  Our team has been short staffed due to the summer vacation season but will return to full strength soon.

We will get back to you by early next week latest.

Thank you for your interest in PoE products from Texas Instruments,

Hi User,

I think Dave was asking if your design required an isolated or non isolated power supply.

If looking for a non-isolated design, our latest reference design looking at the TI Design library is PMP21274.

If looking for an isolated design, unfortunately we don't have a TI design in our reference design library that meets these specs. I recommend however, checking with the flyback forums to see what controller they recommend based on these specs (the UCC2897A or LM51551 are common PWM controller used in flyback applications for PoE). Then to start your design, I recommend using TI's power stage designer below.