FGH75T65SQDNL4 - onsemi

FGH75T65SQDNL4 Frequently Asked Questions (FAQs)

• What is the recommended gate resistor value for this IGBT?
  The recommended gate resistor value is typically between 10Ω to 100Ω, depending on the specific application and switching frequency. A higher value can reduce EMI, but may slow down the switching speed.
• How do I ensure the IGBT is properly cooled in my design?
  Proper cooling can be achieved by using a heat sink with a thermal resistance of 1°C/W or lower, and applying a thermal interface material (TIM) with a thermal conductivity of 5 W/m-K or higher. Ensure the heat sink is properly mounted and the IGBT is securely fastened.
• What is the maximum allowed voltage imbalance between the collector and emitter?
  The maximum allowed voltage imbalance is typically ±10% of the rated voltage (650V). Exceeding this limit can lead to reduced reliability and potential failure.
• Can I use this IGBT in a resonant converter topology?
  Yes, the FGH75T65SQDNL4 can be used in resonant converter topologies, but ensure the design takes into account the IGBT's switching characteristics, and the resonant frequency is within the recommended range (typically 100 kHz to 500 kHz).
• How do I protect the IGBT from overcurrent and overvoltage conditions?
  Implement overcurrent protection using a current sense resistor and a comparator or a dedicated overcurrent protection IC. For overvoltage protection, use a voltage clamp or a transient voltage suppressor (TVS) diode rated for the maximum voltage and power rating.