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The resistor R23 (on PMP8861) sets the current through the opto coupler, you need to have at least 1mA to get good regulation.
When you removed the potentiometer and R23 from your board, this is cause the output to not regulate? You can try to lower the…
Part Number: PMP8861 Tool/software: Hello TI Team I am currently planning to design a 90W(12V, 7A) DC/DC. I plan to design and test it with PMP8861 as reference. However, I cannot find the PA0801.004NL product listed in the BOM, so I have a question. I also…
Hi,
While apparently not available from distributors, by contacting Pulse directly, you should be able to acquire the transformer version with the additional auxiliary winding. Another option is to provide a separate bias supply for the controller, or…
Part Number: UCC2897A Other Parts Discussed in Thread: PMP8861 , PMP5123 Tool/software: Hello TI team I am looking for a reference design for a 24V input 12V7A class isolation circuit. PMP5123,PMP8861 products are searched as reference reference circuits…
Hermandez,
Thanks for your reply. I have not see much flyback design for output power more than 100W.
I have seen below two reference designs to suitable my designs approximately.
https://www.ti.com/tool/PMP8861
https://www.ti.com/tool/PMP5123
but…
