DRV10983-Q1 Datasheet, PDF (21/72 Pages) Texas Instruments – Automotive, Three-Phase, Sensorless BLDC Motor Driver

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DRV10983-Q1
SLVSD14 – JUNE 2017
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 DRV10983-Q1 device may be configured either to wait for the motor to
stop spinning or to 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 reverse-drive or brake feature 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.
Stationary
IPD
Align and Go
Spinning forward
Direct closed loop
Wait
Spinning reversely
Brake
Reverse drive
Figure 13. Start the Motor Under Different Initial Conditions
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