UCC5871-Q1: question about UVOV value during ABIST phase

Hi Jay, 

I believe the BIST simulates the output of the comparator instead of generating a separate voltage rail to simulate VCC2. I'll confirm this and get back to you early next week. 

Thanks, 

Vivian

Hi Jay,

Vivian is correct. The BIST forces the comparator to detect a fault, as shown in the safety manual:

This tests the internal detection, protection, and fault reporting path for each OV/UV fault.

Regards,

Daniel

ok thank you Daniel and Vivian