DRV8312DDWR datasheet by Texas Instruments

DRV8312DDWR 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 16V. Exceeding this voltage may damage the device.
• 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 general guideline is to choose a sense resistor value that results in a voltage drop of 0.1-0.5V at the maximum motor current.
• 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 device. When EN is high, the device is enabled, and when EN is low, the device is disabled. This pin can be used to implement a shutdown or standby mode in the system.
• How do I configure the device for 3-phase or 2-phase operation?
  The DRV8312DDWR can be configured for 3-phase or 2-phase operation by connecting the appropriate pins. For 3-phase operation, connect the AIN1, AIN2, and AIN3 pins to the corresponding motor windings. For 2-phase operation, connect the AIN1 and AIN2 pins to the motor windings and leave the AIN3 pin unconnected.
• What is the purpose of the nFAULT pin, and how do I use it?
  The nFAULT pin is an active-low fault indicator that signals an overcurrent, overtemperature, or undervoltage condition. This pin can be connected to a microcontroller or other logic circuit to implement fault detection and protection in the system.