FS3L048NG

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FS3L048NG is an automotive 3-phase permanent magnet brushless DC motor driver with integrated current sense. Its application to drive a 3-phase brushless DC motor makes it one of the most reliable motor drivers in the automotive industry. The driver can be used for applications such as electric actuators, resistive load drivers and fan/pump drives. The FS3L048G features an integrated power stage, integrated Hall sensors interface, three integrated control loops (current sensor, Hall and speed control) and a high speed digital signal processor (DSP).

The power stage of the FS3L048NG is integrated with a 3-phase full bridge (MOSFET) driver, which provides a continuous phase current output of 10A (with an overcurrent protection of 40A). The integrated power stage also features a torque control function, which allows the user to control the speed of the motor with a wide range. Additionally, the driver has three integrated Hall sensor interfaces for controlling the motor phases directly.

The FS3L048NG also features an integrated current sensing circuit. The current sensing circuit is designed to measure the phase current of the motor and is used for both current limit protection and closed loop control. It is also used for fault detection like over-voltage, over-current and short circuit protection.

The FS3L048NG features a high speed digital signal processor (DSP) for controlling the start and stop delays, torque control and Hall sensor signal sampling. The integrated DSP takes over the complete motor control, including phase detection, speed control and current sensing. The processor also includes a 3-phase current limitation and a PID control loop.

The FS3L048NG also has a wide range of safety features, including over temperature protection, over-voltage protection, over-current protection and short circuit protection. It also includes a current limit and a Hall sensor fault detection function. Finally, the driver also has a low noise mode which helps to reduce noise when the motor is operating at low speed.

In conclusion, the FS3L048NG is a reliable and powerful 3-phase brushless DC motor driver suitable for applications such as electric actuators, resistive load drivers and fan/pump drives. The integrated power stage, integrated Hall sensor interfaces, current sensing circuit and high speed digital signal processor make it one of the most versatile and reliable motor drivers in the automotive industry.

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