Hello,
I am Ananth from Chennai.I have used the driver IC drv8821 with a stepper motor.I am operating the motor in the various PPS. I will explain the flow below
1.I have rotate the motor initially from 200- 1200 PPS in 100 steps.After some milliseconds I have suddenly low down the speed from 1200 to 300 PPS. Then the motors gets ramp up from 300- 800 PPS for some milliseconds then I suddenly stops the motor and give 300 ms delay and It again gets ramp up and rotate from 300- 800 PPS.
In the above cases i have face a issue on the IC. When I am ramping up the motor from 300-800 PPS ,the particular IC gets shutdown.
What is the possible cases available? I have included the schematic also. Please support and reply me as soon as possible.