MCT8329A: Problem with DRVOFF

Tool/software:

Hello,

I am using an MCT8329A to drive a motor, and I control the POWEROFF line each time I start or stop the motor. It is driven directly by the MCU, and the voltage levels are correct (verified through a 0 Ω resistor).

After a few start/stop cycles (sometimes even after the first one), the POWEROFF function stops working. The DRV_OFF bit in the GATE_DRIVER_FAULT_STATUS register remains high, and the motor will not rotate again until I perform a hard reboot.

My start/stop sequence is as follows:

1. Drive POWEROFF low

2. Send PWM signal

3. Stop PWM signal

4. Drive POWEROFF high

Is this a known issue, or is there something wrong with my sequence?

Thank you,