PMP8606: Opto isolation feedback

Venkatesh B

Intellectual 783 points

Part Number: PMP8606
Other Parts Discussed in Thread: UCC28950

Tool/software:

Hi Ti team,

I am using UCC28950 with opto isolated feedback ,i am using Excel calculator of UCC28950.

In this Opto isolation side passive components and CTR ratio based, compensation values calculation were missing

Let me know methods to calculate please

Thank you

venkatesh B

over 1 year ago

0 Darwin Fernandez over 1 year ago

TI__Mastermind 41770 points

Hi Venkatesh,

You're right, unfortunately the calculator does not have opto design. I highly recommend reading the technical papers in the below link. We have a paper called compensation made easy that looks at the opto feedback and gives recommendations on how to compensate with it.

https://www.ti.com/video/5099090674001