DRV10975ZPWPR datasheet(21/64 Pages) TI1

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Stationary

Spinning forward

Spinning reversely

IPD

Align and Go

Direct closed loop

Wait

Brake

Reverse drive

DRV10975, DRV10975Z

www.ti.com

SLVSCP2D – JANUARY 2015 – REVISED MARCH 2018

Product Folder Links: DRV10975

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8.4.2.3 Case 3 – Motor Is Spinning in the Reverse Direction

If the motor is spinning in the reverse direction, the DRV10975 provides several methods to convert it back to

forward direction.

One method, reverse drive, allows the motor to be driven so that it accelerates through zero velocity. The motor

achieves the shortest possible spin-up time in systems where the motor is spinning in the reverse direction.

If this feature is not selected, then the DRV10975 may be configured to either wait for the motor to stop spinning

or brake the motor. After the motor has stopped spinning, the motor start-up sequence proceeds as it would for a

motor which is stationary.

Take care when using the feature reverse drive or brake to ensure that the current is limited to an acceptable

level and that the supply voltage does not surge as a result of energy being returned to the power supply.

Figure 10. Start the Motor Under Different Initial Conditions

DRV10975ZPWPR Datasheet(PDF) 21 Page - Texas Instruments