DRV8245-Q1: Control ITRIP using DAC

Hi team,

My customer is using DAC to control the ITRIP.

Max current is 6A, RIPRORI is using 3kohm, VIPROPI is 2.77V typ.

Considering ITRIP = ((VITRIP - VDAC) / RIPROPI) X AIPROPI, the ITRIP accuracy will be influenced by AIPRORI error and VITRIP error.

In worst case, actual ITRIP could be > +/- 1A comparing to expected ITRIP.

Do you have any method to improve the ITRIP accuracy?

Best,
Zeming