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COMP pin's characteristics of UCC28C40

Oliver Ou
Intellectual 2845 points
Other Parts Discussed in Thread: UCC28C40

Hi,

Our customer has a question about COMP pin's characteristics of UCC28C40:

The offset voltage from COMP to CS pin should drop at high temperature conditon according to below funciton block,

because the VF of diode should drop at high temperature conditon. But the characteristics curver shows an opposite result.

Can you help to check the reason?

Thanks a lot.

Oliver Ou