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TPS92641: TPS92641 -- output voltage varies when When the SDIM duty cycle is greater than a certain threshold.

efran ling
Prodigy 20 points
Part Number: TPS92641


I am currently working on  LED driver application with TPS92641. I have the same problem with output voltage varies https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1334162/tps92641-tps92641----hg-signal-problem-output-voltage-varies-led-flickers?tisearch=e2e-sitesearch&keymatch=TPS92641%25252525252520noise%25252525252520on%25252525252520power%25252525252520on# . How can I solve it?