VNH5019A-E datasheet by STMicroelectronics

VNH5019A-E 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 24V, but it's recommended to keep it below 18V for optimal performance and to prevent overheating.
• How do I protect the VNH5019A-E from back-EMF?
  To protect the VNH5019A-E from back-EMF, you can add a freewheeling diode in parallel with the motor, and also ensure that the motor is properly decelerated before switching directions.
• What is the maximum current that the VNH5019A-E can handle?
  The maximum current that the VNH5019A-E can handle is 30A peak, but it's recommended to keep the average current below 14A to prevent overheating and ensure reliable operation.
• How do I configure the VNH5019A-E for half-bridge or full-bridge operation?
  To configure the VNH5019A-E for half-bridge operation, connect the EN pin to VCC and the IN pin to the control signal. For full-bridge operation, connect the EN pin to the control signal and the IN pin to VCC.
• What is the purpose of the CS pin, and how do I use it?
  The CS pin is a current sense pin that allows you to monitor the motor current. You can connect a resistor and a capacitor to the CS pin to create a low-pass filter, and then connect the output to an ADC or a comparator to monitor the motor current.