TIDUF36A May 2023 – December 2023 DRV8328
The speed control is done using a potentiometer (POT), and the POT voltage is fed to the ADC of the MCU. Figure 3-6 shows the circuit. The POT is supplied from AVDD. A 20-kΩ POT can be connected externally to the jumper J2. Connect the fixed terminals of the POT to terminal 1 and 3 of J2 and the mid-point to terminal 2 of J2.