Wolfspeed recommends a PCB layout with a thermal pad connected to a large copper area on the PCB to dissipate heat efficiently. A minimum of 2 oz copper thickness is recommended, and the thermal pad should be connected to a heat sink or a thermal interface material (TIM) for optimal thermal performance.
To ensure reliable operation in high-temperature environments, Wolfspeed recommends following the recommended operating conditions, using a suitable heat sink, and ensuring good thermal interface material (TIM) between the device and the heat sink. Additionally, consider using a thermistor or temperature sensor to monitor the device temperature and implement over-temperature protection if necessary.
According to Wolfspeed, the maximum allowed voltage overshoot during switching is 750V for a duration of less than 100ns. Exceeding this limit may cause device damage or failure.
To minimize EMI, Wolfspeed recommends using a layout with a solid ground plane, keeping the switching node (drain-source) as short as possible, and using a common-mode choke or EMI filter in the circuit. Additionally, consider using shielding or a metal enclosure to contain EMI radiation.
Wolfspeed recommends a gate drive voltage of 15V to 20V and a gate current of 1A to 2A for optimal switching performance. However, the specific gate drive requirements may vary depending on the application and switching frequency.
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E4M0060075K1 Overview
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