cupoftea
Advanced Member level 5
Hi,
Pg 1 shows a 3n3 cap on the IMO pin of UCC28070A PFC controller….
https://www.ti.com/lit/df/slur033/s...87812&ref_url=https%3A%2F%2Fwww.google.com%2F
However, IMO is a current output, which determines the instantaneous Boost choke current, so surely a capacitor here is not wanted?
None of the other UCC28070A app notes show a cap on IMO… eg pg 17 of the following
UCC28070A datasheet
Pg 1 shows a 3n3 cap on the IMO pin of UCC28070A PFC controller….
https://www.ti.com/lit/df/slur033/s...87812&ref_url=https%3A%2F%2Fwww.google.com%2F
However, IMO is a current output, which determines the instantaneous Boost choke current, so surely a capacitor here is not wanted?
None of the other UCC28070A app notes show a cap on IMO… eg pg 17 of the following
UCC28070A datasheet