Dear Sir / Madam,
We designed a stepper motor driver with MP6602. We can not reach 500 rpm with your driver. When we increase pwm frequency, we realized that stepper motor not running. We can reach just 300 rpm. But not more. How can we increase speed to at least 500 rpm? Is there a speed limit for mp6602?
We are looking forward to hearing from you.
Best regards.
Hasan CAGLAR
Hi Hasan,
The MP6602 can step very fast and is not limiting the speed. The maximum speed of a stepper motor is a function of motor inductance and resistance, and supply voltage. To get a higher speed, you likely either need a lower inductance (higher current) motor and/or a higher supply voltage.
Feel free to check out the webinar below that touches on this.
Webinar On-Demand Stepper Motors and Back EMF - Videos - Support (monolithicpower.com)
Best Regards,
Yu