DRV8143P-Q1LEVM: About the setting range of CIPROPI

Hi,

The recommendation for 10 nF to 100 nF was for a specific reason. I highlighted in the screen capture below. For proper detection of OCP for a direct short the current regulation must not kick-in. Else the current will continue to regulate and output a current although the output was shorted. This would happen only if the short has some inductance. 

For all other drive circumstances a 1nF capacitance is sufficient to take care of the noise on the IPROPI pin for internal ITRIP current regulation. Thank you.

Regards, Murugavel 

Thank you for your reply.

Could you please tell me why CPROPI (C42) is set to 1nF on the EVA board (MD073)?

Thank you in advance.

Hi,

Let me look into this and get back to you tomorrow.

Best,

Keerthi

Dear Keerthi

Could you provide any information on this?
Thank you in advance.