SLVSGI0C September 2022 – June 2024 DRV8411
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
In this half-stepping mode, the driver achieves the 0-A state using the slow decay control state (known as "brake mode" for BDC driving). Therefore, the full-bridge operates in one of the three modes (forward, reverse, or brake/slow-decay mode) to position the rotor half-way between two full-step positions. The slow decay state allows the current in the motor winding to decay slowly to 0 A. This mode is best-used when half-stepping at slow speeds and may help to reduce stepper noise and vibration.
The controller applies the PWM input to the AIN1, AIN2, BIN1, and BIN2 pins as shown in Figure 9-4, and the driver operates in forward, reverse, and brake mode.