DRV8304: ENABLE pullup value on DRV8304S

Hey Vishnu,

Thanks for your question. I will aim to provide a reply before the end of the week.

Best Regards,

Akshay

Hey Vishnu,

Could you explain why you wanted to know the internal pull up value of the Enable pin?

Best Regards,

Akshay

Hey Akshay,

I designed a motor driver board with one power line to a DRV8304S (~25.2V) and one power line (6V) going into a 3.3V LDO and then the microcontroller.

I noticed a problem where if we turned on the 25.2V line and then turned on the 6V line (with some delay - atleast a second), the MCU did not boot properly. It did not run the code that had been flashed.

This issue vanished when I replaced the enable pin pulldown of the DRV, from 453k to 100k. I am still in the process of figuring out the root cause - the internal pullup seemed like an important piece of information that I couldn't find in the datasheet. Do let me know.

Regards,

Vishnu

Hey Vishnu,

I will consult with my team and aim to provide feedback next week.

Best Regards,

Akshay