SLVSD29 October 2015 DRV8704
PRODUCTION DATA.
The chopping current is set based on the sense resistor value, shunt amplifier gain set by the ISGAIN register, and the TORQUE register setting. The following is used to calculate the current:
Example:
If the desired chopping current is 5.5 A:
Set RSENSE = 100 mΩ.
Set ISGAIN to the 5 V/V setting.
The TORQUE register can be (decimal) 255.