Hello.
I have a question about UCC28056.
As one of the functions of ZCD / CS_PIN,
There is Second Level Over-Voltage Protection (Ovp 2)
Is there a way to disable it?
It must be designed to start from AC 80V.
ZCD / CS_PIN is shared with brownout and OVP 2.
Therefore, if brownout is set to a constant that can be activated with AC80V,
The OVP 2 becomes lower than the normal PFC output voltage and it will not operate.
Is there a countermeasure method?
Designed from datasheet P30
Kzc ：348
Rzc1 ：9.9MΩ（3.3MΩx3)
Rzc2 ：28.5kΩ
Start-up ：AC 74Vtyp（Max:AC 79.9V）
STOP ：AC 65Vtyp（Min:AC 60.1V）
OVP2 ：392Vtyp （Min：376 V）
PFC OUTPUT Voltage:395V
Thank you.
