AH5794-FDC-7 Integrated Circuits (ICs)

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Introduction

The AH5794-FDC-7 is an IC designed for Brushless DC Motor Control in which it combines 3-Phase Power Devices like FETs, along with Safety control functions into one single chip, making it a revolutionary advancement in Brushless DC Motor Control. This IC has wide range of applications due to its large number of configurable parameters and functionality. This IC is specially designed for low noise, low power and high efficiency motors.

Power Device and Configuration

The AH5794-FDC-7 has three power MOSFETs that offer a uni-directional rated current of 2 A and a PWM frequency up to 24 MHz. The PWM frequency can be adjusted on the chip to suit the motors’s features. The IC also includes two-channel short-circuit protection and can be employed for simple and complex motor applications with its five configurable parameters.

Safety control functions

The AH5794-FDC-7 also includes built-in safety control functions that enable safe starting of motors and protect from overcurrent and thermal protection. This IC also supports thermal protection by automatically shutting down the motor in the event of excessive temperature. The safety control functions that are integrated in the AH5794-FDC-7 are implemented in such a way that they can be enabled or disabled as per requirements.

Application Fields

The AH5794-FDC-7 is a perfect choice for many applications as it offers high performance low-power motor control. This includes applications like Air-Conditioners, Refrigerators, Thermostats, Washing machines, fans and pumps, 3-Phase induction motor drives and so on. This IC also helps in controlling the speed and acceleration of motors by providing accurate feedback about their status. This IC also allows for precise speed and torque control.

Working Principle

The AH5794-FDC-7 is a 3-Phase Power Device that allows for brushless DC Motor control. It allows for controlling the current through the three stator phases and the current supplied to the rotor. The precise speed and direction of the motor is controlled by the speed, acceleration and deceleration parameters. The three power MOSFETs are connected in a bridge configuration and are utilized to generate the necessary 3-phase pulse-width modulated (PWM) voltage to generate a rotating magnetic field. The IC allows for selection of full bridge, half bridge or single output for motor control. The PWM frequency can be configured to match the speed of the motor.

Conclusion

The AH5794-FDC-7 IC has wide range of applications due to its large number of configurable parameters and functionality. This IC is mainly used for controlling Brushless DC Motors, as it allows for precise speed and torque control. It includes safety features such as thermal protection and overcurrent protection. This chip is ideal for applications like Air-Conditioners, Refrigerators, Thermostats, Washing machines, fans and pumps, 3-Phase induction motor drives and so on.

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