TK35N65W,S1F - Toshiba

TK35N65W,S1F Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal thermal performance?
  Toshiba recommends a PCB layout with a thermal pad connected to a large copper area on the PCB to dissipate heat efficiently. A minimum of 2oz copper thickness is recommended, and the copper area should be connected to a heat sink or a thermal interface material.
• How do I ensure the device is properly biased during startup?
  To ensure proper biasing during startup, Toshiba recommends using a soft-start circuit to slowly ramp up the gate voltage. This can be achieved using an external resistor-capacitor (RC) network or a dedicated soft-start IC.
• What is the maximum allowed voltage overshoot during switching transitions?
  Toshiba recommends limiting the voltage overshoot to less than 10% of the maximum rated voltage (650V) to prevent damage to the device. This can be achieved using a snubber circuit or a voltage clamp.
• How do I protect the device from overcurrent and overtemperature conditions?
  Toshiba recommends using an external overcurrent protection circuit, such as a current sense resistor and a comparator, to detect overcurrent conditions. Additionally, a thermistor or a temperature sensor can be used to monitor the device temperature and shut down the circuit if it exceeds the maximum rated temperature (150°C).
• What is the recommended gate drive voltage and current for optimal switching performance?
  Toshiba recommends using a gate drive voltage of 10-15V and a current of 1-2A to ensure optimal switching performance. The gate drive circuit should be designed to provide a fast rise and fall time (less than 10ns) to minimize switching losses.