Hello concerned person
I am using BQ76940 IC for the management of system consists of 12 Series cells max voltage 48 V. I am using BQ76200 gate driver for mosfets.
I have following problem
The Turn OFF time of mosfet is large, it is about 400-500 uS. The Vgs during turn off lasts around 12-15 uS but Vds takes 400-500 uS to rise. I have checked Vg w.r.t ground it takes 400-500 uS to come to low potential. I am using zero ohm gate resistance. The turn ON time is 12-15 uS. I want to turn OFF mosfet in 12-15 uS as well.
I am attaching you my schematic and picture of above measured parameters from oscilloscope. During experiment the Source of DSG mosfet is connected to load to feed 1 A current. Could you please tell me what could be the reason . Thanks