SLVSEE8B November 2019 – May 2021 DRV8899-Q1
Mixed decay begins as fast decay for a time, followed by slow decay for the remainder of the tOFF time. In this mode, mixed decay only occurs during decreasing current. Slow decay is used for increasing current.
This mode exhibits the same current ripple as slow decay for increasing current, because for increasing current, only slow decay is used. For decreasing current, the ripple is larger than slow decay, but smaller than fast decay. On decreasing current steps, mixed decay settles to the new ITRIP level faster than slow decay.