FAN7083MX-GF085

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The FAN7083MX-GF085 automotive gate driver is designed for usage in power supply and motor applications. It is compliant with AEC-Q100 and enables use of a direct gate drive for automotive loads. The device provides an integrated boost diode, a buck diode, an adjustable deadtime, adjustable dead band, and adjustable slew rate. The device is an excellent choice to drive high-voltage power semiconductor switches.

Applications of the FAN7083MX-GF085 include buck converters, buck-boost converters, synchronous rectifiers and motor control applications in automotive systems such as lighting, braking, and audio systems. The device also has a wide range of applications in off-line switch mode power supplies (SMPS).

Working Principle

The FAN7083MX-GF085 is a single-stage bipolar gate driver capable of driving both N-channel and P-channel power FETs or IGBTs up to 50V in isolated and non-isolated applications. The device is designed to provide a high level of performance with low operating power and low noise.

The FAN7083MX-GF085 uses PWM modulation for driving the N-channel and P-channel power FET gates. The device does this by producing a voltage across the gates to ‘push’ or ‘pull’ the power FETs into the desired state.

The device also provides an adjustable deadtime that allows the user to control the switching behaviour of the power FETs and allows for more accurate control of the power supply or motor. The adjustable deadtime also helps to prevent cross conduction between the power FETs and helps to reduce power dissipation in the device.

The FAN7083MX-GF085 also includes an adjustable dead band feature which helps to reduce switching noise and allows for smoother control of the power supply or motor.

The device also includes an adjustable slew rate which allows the user to control the speed at which the power FET will switch from one state to another. This helps to reduce power dissipation in the device as well as improve the overall performance of the power supply or motor.

Finally, the device includes an integrated boost diode and buck diode which protect the FETs from overheating and also allows for faster switching of the power FETs.

Conclusion

The FAN7083MX-GF085 automotive gate driver is an excellent choice for power supply and motor applications. It provides an integrated boost diode, adjustable deadtime, adjustable dead band, adjustable slew rate and a wide range of applications in off-line switch mode power supplies (SMPS). This makes it ideal for use in automotive systems such as lighting, braking, and audio systems.

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