Tool/software:
Dear TI Expert,
We are receiving BMS based on BQ76952 IC from field and we are observing following problem:
Lot Quantity: 5000
1. In some BMS only BQ76952 IC failed in 50 pcs.
2. In 15 Pcs. BMS, we observed BQ IC failed along with 3 to 4 balancing resistors randomly, current filter resistor. here it should be noted that the resistor connected with the VC0 is failed in all these boards.
3. In 30 Pcs. BMS, two balancing resistors along with BQ IC burned.
We are unable to Analyse above mentioned nature of failure related to BQ
Please help us out to suggest solution by analyzing root cause.
Thanks
Rahul Sharma