SLVSCP6H July 2014 – June 2020 DRV10983
Note that the FG output reflects the driving state of the motor. During normal closed loop behavior, the driving state and the actual state of the motor are synchronized. During open loop acceleration, however, this may not reflect the actual motor speed. During a locked motor condition, the FG output is driven high.
The DRV10983 provides three options for controlling the FG output during open loop as shown in Figure 37. The selection of these options is determined by the FGOLsel[1:0] setting.