DRV8833PWP datasheet by Texas Instruments

DRV8833PWP Frequently Asked Questions (FAQs)

• What is the maximum voltage that can be applied to the VM pin?
  The maximum voltage that can be applied to the VM pin is 15V, but it's recommended to keep it below 12V for reliable operation.
• How do I choose the correct sense resistor value for my application?
  The sense resistor value depends on the motor current and the desired current sense accuracy. A good starting point is to use the formula Rsense = 0.05 / Imax, where Imax is the maximum motor current.
• What is the purpose of the internal voltage regulator, and can I use an external voltage regulator instead?
  The internal voltage regulator generates a 5V supply for the internal logic and can be used to power external circuitry. However, if you need a higher current or a different voltage, you can use an external voltage regulator, but make sure to follow the recommended layout and decoupling guidelines.
• How do I implement overcurrent protection using the OC pin?
  The OC pin is an open-drain output that asserts low when an overcurrent condition is detected. You can connect a pull-up resistor to a voltage source and a capacitor to filter out noise. The recommended pull-up resistor value is 10kΩ, and the capacitor value depends on the desired filter frequency.
• What is the minimum input pulse width required for the IN1 and IN2 inputs?
  The minimum input pulse width required for the IN1 and IN2 inputs is 10ns, but it's recommended to use a pulse width of at least 50ns to ensure reliable operation.