Good morning.
I recently burn one of my stepper driver and I want to make sure that my calculations are correct.
a4982, a4988, a5984 stepper drivers have the same equation to calculate max current with V
REF pin:
ItripMAX = VREF / (8×RS)
Questions:
One stepper driver have 2 bridges with R
S = 0.05ohm for each, so i supose put in equation 0.05 or 0.1 ohm ?
Stepper motor can handle 2A of current, this means that I
tripMAX shouldn’t cross 1A (because there are 2 bridges) ?
P.S I put 0.65V on V
REF