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Dear Team,
Our design is: tps53647+4 phase CSD95490; Input: 12V; output: 0.89V;
The current is 48A under heavy load, and the ripple is only 10 mv, which meets the requirements; the current is 35A under no load, and the noise is more than 40 mv, which does not meet the spec requirements;
The current value is read out through the TI GUI , and the ripple is measured at the end with an oscilloscope
May I ask why the ripple is so large at no load?
I think light load get 35A from GUI is abnormal.
Many Thanks,
Jimmy
Hi Jimmy,
GUI should not be reporting 35A at no load. Can you send your config file?
Is the 48A per phase or for the entire rail? Also, is that measured with bench equipment or reported from Fusion?
Thanks,
Travis
Hi Jimmy,
I'm closing this thread due to inactivity. To reopen the thread, reply to this post.
Thanks,
Travis