L6783ATR

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L6783ATR is a motor and mains driver for high power, controlled by a fixed-frequency current-mode PWM regulator. It is designed for AC and DC motors applications, as well as mains adapter applications with input voltage operating up to 680 V AC. Its features include integrated current sensing, protection circuitry, as well as a gate driver, that helps to reduce component count and manufacturing costs.

The L6783ATR is optimized for motor applications and can be used as a building block for a variety of motor control applications including AC and DC Motor Drives, as well as Uninterruptible Power Supplies (UPS) and motor protection systems. It is also suitable for applications within the industrial and automotive markets, where reliability and robustness of the design are paramount.

Working Principle of L6783ATR

The L6783ATR employs a fixed frequency current-mode control topology. This regulator takes the DC input voltage (Vin) and processes it through an internal high-voltage Power MOSFET and control logic. This generates a current-controlled PWM signal (150 kHz typical) to the gate of the MOSFET. This in turn translates into a voltage output (Vout) to the application.

To control the motor currents, this system uses an on-board current sense circuit. This is typically used to detect both the motor’s active current, as well as any potential current imbalances. This current sensing circuit includes a current sensing resistor to measure the magnitude and phase of the motor’s current.

The system is also equipped with a fault protection circuit which monitors the motor\'s operating temperature as well as the output current. This prevents the motor from operating at temperatures and/or current levels which could be damaging. In addition to this, the system includes an onboard gate driver which helps to reduce component count and the cost of the system.

Application Field of L6783ATR

The L6783ATR is designed primarily for motor driven applications, but it can also be used in a wide variety of other applications. It is suitable for Uninterruptible Power Supplies (UPS), motor protection systems, and industrial and automotive applications. It can also be used in power adapters and other high-current applications.

In addition, the L6783ATR is suitable for a variety of motor control applications, including AC and DC motor drives. It is optimized for motor applications and can be used as a building block for a variety of motor control applications. Furthermore, it is also able to detect motor current imbalances, which allows for better motor protection.

Overall, the L6783ATR is a highly effective motor and mains driver for high power applications, with a fixed frequency current-mode PWM regulator. Its features include integrated current sensing, protection circuitry, and a gate driver, all of which help to reduce component count and manufacturing costs. Its application field is wide and versatile, making it suitable for a variety of motor driven applications, as well as industrial and automotive applications.

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