LM25145: LM25145 to achieve fixed 50% duty

Wei-Hao Chen (TW-FAE)

Part Number: LM25145

Hi Support team,

My customer wishes to do a equalizer design using LM25145 for fixed 50% duty, i.e. when input is 18V output is 9V, and input is 36V output is 18V.

Can you please suggest a reference circuit how to achieve it?

Thank you very much.

Best Regards,

Wei-Hao

over 7 years ago

0 Ambreesh Tripathi over 7 years ago

TI__Expert 6860 points

Wei-Hao ,

I dont have any ready ref design on this but it can be implemented as follows :
.

1. Sense the input voltage by micro controller in the design .
2. based on the input, the GPIO of the controller can be iused to add a source to the feedback to modify it as per the requirement .

Ambreesh

0 Robert Blattner over 6 years ago in reply to Ambreesh Tripathi

TI__Expert 6245 points

Hello Wei-Hao,

It has been a while since you have posted on this thread. I hope that you have a working design. ;If not, please email me or start a new E2E thread.

Regards, Robert

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LM25145: LM25145 to achieve fixed 50% duty