We use the high-side board for MOSFETs controlling,and the discharge mosfet and charge mosfet is in serial,when the CHG is off,and the DSG is on,and then connect a high voltage to the PACK+,the CP1 voltage will be affected,and then the charge mosfet is on,if the current is high,the charge mosfet will be damage.
This is our schematic:
This is the waveform we catch when connecting a high voltage to PACK+
