DRV8871 Current regulation accuracy

Hi,

Could you please tell me how DRV8871 sense motor current for current regulation?
I think that it is as overcurrent protection.
In other words, It shows DRV8871 senses FET ds voltage.

Customer wants to know current regulation accuracy of DRV8871.
Above question is for this request.
If you tell me current regulation accuracy, could you please let me know?

Best regards,
Shimizu