DRV8833RTYR datasheet by Texas Instruments

DRV8833RTYR 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 right 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 a 0.1 ohm resistor for currents up to 1A and a 0.05 ohm resistor for currents up to 2A. Adjust the value based on your specific application requirements.
• What is the purpose of the EN pin, and how do I use it?
  The EN (enable) pin is used to enable or disable the motor driver. When EN is high, the driver is enabled, and when EN is low, the driver is disabled. You can use this pin to control the motor driver using a microcontroller or other logic circuit.
• How do I protect the DRV8833RTYR from back-EMF when the motor is turned off?
  You can use a flyback diode (e.g., 1N4001-1N4007) across the motor terminals to protect the DRV8833RTYR from back-EMF. This diode will absorb the back-EMF voltage and prevent it from damaging the driver.
• What is the maximum current that the DRV8833RTYR can handle?
  The DRV8833RTYR can handle a maximum current of 2A per channel, but the actual current limit depends on the ambient temperature and the PCB design. Be sure to check the thermal performance and current de-rating curves in the datasheet.