IR4427PBF datasheet by International Rectifier

IR4427PBF Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the IR4427PBF?
  The maximum operating frequency of the IR4427PBF is 500 kHz, but it can be operated at higher frequencies with proper design and layout considerations.
• How do I ensure the bootstrap capacitor is properly charged?
  To ensure the bootstrap capacitor is properly charged, make sure the high-side FET is turned off before the low-side FET is turned on, and ensure the bootstrap capacitor is sized correctly based on the application's requirements.
• What is the recommended dead time between the high-side and low-side FETs?
  The recommended dead time between the high-side and low-side FETs is typically around 100-200 ns, but this can vary depending on the specific application and layout.
• How do I handle the body diode conduction in the low-side FET?
  To handle the body diode conduction in the low-side FET, ensure the low-side FET is turned on before the high-side FET is turned off, and consider adding a Schottky diode in parallel with the low-side FET to reduce power losses.
• What is the maximum allowable voltage on the VCC pin?
  The maximum allowable voltage on the VCC pin is 15V, but it's recommended to keep it below 12V for reliable operation.