FAN7391MX Integrated Circuits (ICs)

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The FAN7391MX is a motor driver in the PMIC - Gate Drivers category. It is designed to drive brushed motors and brushless DC (BLDC) motors. This gate driver provides several features to optimize motor control and operation, allowing for more efficient control of motors.

The FAN7391MX is a high-performance switch-mode motor driver. It is designed to minimize power losses and to provide an optimized, fast and reliable switch-mode circuit. This gate driver supports up to a 6A peak current output, while the average current output is adjustable through external sensing resistors. An ultra low stand-by current of 1µA makes this driver ideal for use in battery-powered and other low-power applications. In addition, the FAN7391MX can be designed as an open-drain/push-pull hybrid driver, so it is able to provide both push-pull and open-drain current signals.

In order to maximize the efficiency of the motor, the FAN7391MX includes several special features. First, the motor current can be monitored with a sense resistor, which enables the driver to quickly adjust the current to optimize system performance. Second, the FAN7391MX combines both analog feedback and digital control in order to optimize the current much faster than pure analog feedback solutions. In addition, the FAN7391MX provides PWM and current limit protection, which enable a safe, reliable and efficient motor control.

The FAN7391MX is designed to operate in 4 different modes. The first mode is PWM mode, which is used to run brushed or brushless DC motors. This mode enables the driver to generate a fixed PWM frequency and to adjust motor torque in relation to a target current. The second mode is current-limit mode, which limits the motor current to a predefined value. This mode enables fast motor-stop operations in case of system overload. The third mode is the voltage mode, which is used to control the motor voltage instead of the current. This mode enables faster acceleration and higher speed control, because the current is not limited by a predetermined value. Finally, the FAN7391MX can be used in open-drain mode, which enables the driver to maintain a low output impedance while providing a high level of control.

In conclusion, the FAN7391MX is an advanced and efficient motor driver in the PMIC - Gate Drivers category. Its features enable efficient and reliable motor control, while its analog and digital solutions allow for fast and stable operations. This gate driver supports up to 6A peak current and features an ultra-low stand-by current, making it an excellent choice for battery-operated and other low-power applications. Finally, it is designed to work in four different modes so that motor performance can be optimized for the given application.

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