IR2103SPBF datasheet by International Rectifier

IR2103SPBF Frequently Asked Questions (FAQs)

• What is the maximum voltage rating of the bootstrap capacitor?
  The maximum voltage rating of the bootstrap capacitor should be at least 2x the maximum voltage of the VCC supply, typically 15V to 20V.
• How do I ensure proper bootstrap capacitor selection?
  Select a bootstrap capacitor with a low ESR, high ripple current rating, and a voltage rating that meets the requirement mentioned above. A 1uF to 10uF ceramic capacitor is a good starting point.
• What is the recommended deadtime between the high-side and low-side switches?
  The recommended deadtime is typically around 100ns to 200ns, but this can vary depending on the specific application and switching frequency.
• How do I prevent shoot-through current during switching transitions?
  Ensure that the deadtime between the high-side and low-side switches is sufficient, and consider adding a small resistor (e.g. 10 ohms) in series with the gate drive signal to slow down the switching transition.
• What is the maximum switching frequency supported by the IR2103SPBF?
  The maximum switching frequency supported by the IR2103SPBF is typically up to 500 kHz, but this can vary depending on the specific application and layout.