DRV8812PWPR datasheet by Texas Instruments

DRV8812PWPR 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 40V, but it's recommended to keep it below 30V for reliable operation.
• How do I adjust the current limit on the DRV8812PWPR?
  The current limit can be adjusted by changing the value of the sense resistor (Rs) connected between the IS pin and ground. A smaller Rs value will increase the current limit, while a larger Rs value will decrease it.
• 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 DRV8812PWPR from over-temperature?
  The DRV8812PWPR has a built-in thermal shutdown feature that turns off the driver when the junction temperature exceeds 150°C. However, it's still important to ensure good thermal design and heat sinking to prevent overheating. You can also monitor the temperature using the THERM pin, which goes high when the junction temperature exceeds 150°C.
• Can I use the DRV8812PWPR to drive a stepper motor?
  Yes, the DRV8812PWPR can be used to drive a stepper motor. However, you'll need to use an external controller to generate the step and direction signals, as the DRV8812PWPR is a brushed DC motor driver and does not have built-in stepper motor control.