IR2132J datasheet by International Rectifier

IR2132J 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 30V, but it's recommended to use a 50V or higher rated capacitor to ensure reliable operation.
• How do I calculate the minimum bootstrap capacitor value?
  The minimum bootstrap capacitor value can be calculated using the formula: CBOOT ≥ (VCC × tON) / (ΔV × fSW), where VCC is the supply voltage, tON is the on-time of the high-side switch, ΔV is the allowed voltage droop, and fSW is the switching frequency.
• What is the purpose of the VCC pin, and how should it be connected?
  The VCC pin is the power supply pin for the internal logic and gate drive circuits. It should be connected to a stable 15V to 20V power supply, and a decoupling capacitor (e.g., 100nF) should be placed close to the pin to filter out noise.
• How do I ensure proper dead-time between the high-side and low-side switches?
  Proper dead-time can be ensured by setting the dead-time (td) to at least 100ns to 200ns, and by using a dead-time control circuit or a dedicated dead-time generator IC.
• What is the maximum allowable current through the SD pin?
  The maximum allowable current through the SD (shutdown) pin is 5mA. Exceeding this current may damage the internal circuitry.