The maximum operating temperature range for the IRFI520N is -55°C to 175°C, but it's recommended to operate within -40°C to 150°C for optimal performance.
To ensure the IRFI520N is fully turned on, the gate-source voltage (Vgs) should be at least 10V, and the gate current (Ig) should be sufficient to charge the gate capacitance quickly.
The maximum current rating for the IRFI520N is 23A, but it's recommended to derate the current based on the operating temperature and PCB layout to ensure reliable operation.
To protect the IRFI520N from overvoltage and overcurrent, use a voltage regulator or a voltage clamp to limit the voltage, and add a current sense resistor and a fuse or a current limiter to detect and respond to overcurrent conditions.
The recommended PCB layout for the IRFI520N includes a solid ground plane, a separate power plane for the drain and source, and a Kelvin connection for the gate to minimize parasitic inductance and ensure reliable operation.
IRFI520N datasheet
by International Rectifier
