This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ76930: BQ76930 + BQ78350 random SUV issue

Part Number: BQ76930
Other Parts Discussed in Thread: BQ78350, BQ76200,

Hello! We have several identical PCBs with BQ76930+BQ78350+BQ76200. The problem is that on some of them, randomly during a charge or discharge, a short-term operation of the SUV protection occurs. At the same time, the DSG mosfet closes for a short time, and nothing critical is recorded in LIFETIMES. If you turn on PF_EN, then it happens as PF protection. I think this is somehow related to the voltage stability at the REGOUT and is most likely related to the measurements on the VC5 cell. Scheme in attachment.

BQ76930_MCU_8_Cell.pdf