DRV8424: stepper motor is too hot

Hi team,

Here's an issue from the customer may need your help:

Use the chip to drive a two-phase stepper motor with a current rating of 1.5A and a chip set current of 1.5A.

When the motor is running to a standstill, after a period of time, the motor is hot enough to heat up to 80℃. The current on the coil is approximately 0.75 a, and the static torque of the motor is also large.

The customer wants to reduce this quiescent current to 25% of the rated current. Is there any way to achieve it?

Could you help check this case? Thanks.

Best Regards,

Cherry