SLOS825E December 2012 – April 2018 DRV2605
This register contains the voltage-compensation result after execution of auto calibration. The value stored in the A_CAL_COMP bit compensates for any resistive losses in the driver. The calibration routine checks the impedance of the actuator to automatically determine an appropriate value. The auto-calibration compensation-result value is multiplied by the drive gain during playback.
Auto-calibration compensation coefficient = 1 + A_CAL_COMP[7:0] / 255