Category: Hardware
Product Number: TMC2130
Hi ADI，
A problem occurred during the recent research and development process. The TMC2130 is configured as an independent mode, and its drive capability (means output current) is depends on the voltage of PIN30-AIN_IREF by the DAC pin from the external MCU, So how to determine the relationship between DAC voltage and actual output current? The relationship in the screenshot was found in the manual, but the value calculated by ourselves does not quite match the actual measurement. Please help solve the calculation formula.
BTW, I_ RMS and I_ MOT in the manual , whether it is an effective current, phase current, or instantaneous current, what is the relationship, and how to measure it? Tks!
I am looking forward to your reply.