AH5773-FDC-7 Integrated Circuits (ICs)

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PMIC stands for Power Management Integrated Circuits. Motor Drivers, Controllers and AH5773-FDC-7 are the specific type of power management integrated circuit (PMIC) designed to control the operation of electric motors. In particular, the AH5773-FDC-7 is a three-phase full-bridge inverter controller IC, which is used for brushless DC motor, linear motor, and other motor controls.

The AH5773-FDC-7 is optimized for controlling low power motors ranging from 3kW and below, featuring HV SO8 packaging with a standard 8-pin JEDEC package. The AH5773-FDC-7 offers a four-wire closed-loop control system, including current and speed regulation to ensure accurate motor performance. The AH5773-FDC-7 also provides a built-in high-side current sensing circuit which allows for current consuming feedback to the controller. Furthermore, the reverse current protection function helps to protect the motor from current overload.

The AH5773-FDC-7 offers multiple features to improve motor control initial sizing and reliability, such as temperature protection, under-voltage protection, over-voltage protection, and over-current protection. The hall sensors on the motor also provide efficient speed regulation and current monitoring.

The AH5773-FDC-7 also provides a range of motor control functions, including speed and acceleration control, position and velocity control, open-loop and closed- loop control, and firmware-based motor control algorithms. The AH5773-FDC-7 can also be used for stepper motor control applications, with up to four phases full-bridge control and 4A phase current peak control.

The AH5773-FDC-7 is an ideal power management solution for applications such as automotive, robots, fans, pumps, automatic door operators, pick-and-place machines, and other low-power motor control applications. For example, the AH5773-FDC-7 can be used as a three-phase full-bridge inverter controller in an automotive electric power steering system. This type of system provides an efficient and reliable power steering system, in addition to a smoother driving experience.

The working principle of the AH5773-FDC-7 is based on the motor’s hall sensor signal, the current sensing signal, the error signal and the speed feedback signal. The motor’s hall sensor signal is used to feedback 3-phase motor commutation signal on the motor stator to the IC controller. The IC controller can be configured to regulate the motor speed according to the rotor speed of the motor by measuring from the current sensing signal and the error signal. The speed feedback signal is then used to control the current setpoint to ensure the accuracy of the motor speed control.

In conclusion, the AH5773-FDC-7 is a three-phase full-bridge inverter controller IC designed for low power motor control applications such as automotive and robotics. The IC offer a variety of motor control functions and feature a range of protections functions. The working principle of the AH5773-FDC-7 is based on the motor’s hall sensor signal, the current sensing signal, the error signal and the speed feedback signal. This IC is an ideal power management solution for applications such as automotive, robots, fans, pumps, automatic door operators, pick-and-place machines, and other low-power motor control applications.

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