Good Afternoon,
We are currently experiencing an issue with a new design utilizing a BQ7790509 and a BQ294700DSGR.
Once assembled, we are able to discharge and charge the pack without issue. However, once the first protection has been tested (in this specific case, SCD) the FETs protect the product but then do not turn back on.
It appears that the drivers are not turning back on, but we cannot find any justification for this in documentation nor in circuit errors.
Copy of schematic inserted with measurements taken from pack that failed.
All measured voltages are referenced to Pack- and Measured with a handheld Fluke 175 multimeter with valid calibration.
I hope you can provide some insight.
Thanks,
Ben
