Dear support team,
I have a question about "Vref" value using DRV8903.
On our board, Vref value is lower than expected. For example, AVDD = 5V, R1=18kohm, R2=13kohm, then the expected Vref should be 2.097V, but the actual Vref is 2.03V. We measured 4 board, and found each Vref is around 3% lower than expected. Does DRV8903 have any resistance inside the device? Please let us know why the actual Vref is lower than expected and how should we fix the resistor value of R1 and R2 (Vref resistor)?
Best Regards,
Matsunaga