L6226PD

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Power management integrated circuits (PMICs) are a key element of any electronic device, allowing devices to present a regulated power supply and make optimal use of energy. Motor drivers, controllers and integrated circuits, such as the L6226PD, are key components of such devices, allowing devices to control the power delivery to applications requiring a regulated motor-connection. This article will discuss the application field and operating principle of the L6226PD.

The L6226PD is a three-phase motor pre-driver controller and provides an 8 A peak drive current (6 A continuous) at a high switching frequency up to 10 kHz. It is specifically designed for the control of low-power-mains fans and DC brushless motors, providing features such as overcurrent protection, soft start, inhibit mode and slew rate-controlled gate drive. The integrated circuit also includes a current-mode power stage, providing a very low EMI level and maintaining the efficiency of the motor control.

The device is able to work with the wide variety of power-supply and load conditions. The integrated over-voltage protection (UVP) feature prevents the transistor pairs of the driver from being damaged by excessive voltage supplied to the motor. The internal regulator also provides a high level of protection against over-voltage conditions, allowing the motor to be started safely even when exposed to a harsh environment. The device also uses a flyback circuit to provide a low-inductance drive, allowing fast over-current protection without sacrificing efficiency.

The operating principle of the L6226PD is based on a three-phase bridge configuration with Hall-effect current sensing. The integrated detector elements in the device are used to detect the Hall effect current flowing through the motor windings, enabling precise current control and allowing motors to start safely even in demanding conditions. The device includes a large number of control features, including protective features, speed and torque control features, feedback control features and current/voltage control features. These features allow the efficient and precise control of the motor, with a large number of parameters and configurations achievable.

The L6226PD is compatible with a wide range of applications, including fans, electric vehicles, home appliances, pumps and electric toys. This level of compatibility allows the device to be used in multiple applications, providing a versatile and reliable solution for motor control. The device can be used in any application where a regulated motor-connection is required, as it allows a precise and efficient control of the motor and provides a large number of parameters and configurations. This makes the L6226PD an ideal choice for a wide range of motor control applications.

In conclusion, the L6226PD is a three-phase motor pre-driver controller, specifically designed for the control of low-power-mains fans and DC brushless motors. The device provides a large number of control features, allowing precise current control and allowing motors to start safely even in demanding conditions. Additionally, the device is compatible with a wide range of applications, providing a versatile and reliable solution for motor control.

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