ZHCSH31B August 2017 – February 2018 DRV10987
When the motor is blocked or stopped by an external force, lock protection is triggered, and the device stops driving the motor immediately. After the lock release time tLOCK_OFF, the DRV10987 device resumes driving the motor again. If the lock condition is still present, it enters the next lock protection cycle, and repeats until the lock condition is removed. With this lock protection, the motor and device do not overheat or become damaged due to the motor being locked (see Lock Detect and Fault Handling).
During a lock condition the Status register indicates which of the locks has occurred.