UCC25600: Calculation of OC sensing network components

hy l1

Part Number: UCC25600

Hi There,

I'm designing an LLC converter based on UCC25600.

How do I get PRs(max) on page 12, equation 5 at UCC25600 datasheet?

0 Benjamin Lough over 4 years ago

Hi hy,

I would suggest using the UCC25600 excel calculator sheet. It will calculate all necessary parameters for you:https://www.ti.com/tool/UCC25600-DESIGN-CALC

Best Regards,

Ben Lough

0 hy l1 over 4 years ago in reply to Benjamin Lough

Hi Ben,

Thank you for your suggestion.

But I still want to know how to get those parameters.

Besides, the results form the excel calculator are far from what I calculated based on documents from TI(SLUP263).

The parameter I asked, PRs, come from nowhere without any explanation. I just want to know how to get it.

Best Regards,

Hy L

0 Benjamin Lough over 4 years ago in reply to hy l1

Hi Hy L,

PRs should be referring to power in the resonant tank.

Best Regards,

Ben Lough

Power management forum