TB67H302HG

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PMIC - Motor Drivers, Controllers

TB67H302HG is a current-based dual-motor driver IC with a high density 6x6 mm QFN package. It is one of the few motor drivers that is specifically designed to drive two independent motors simultaneously. It has wide application in motion control products, such as robotic arms, pipe cleaners, and other complex motion products. This article provides a comprehensive description of TB67H302HG applications and its working principle.

Application Fields

TB67H302HG makes it possible to control two independent motors, each in two different directions. This eliminates the need for separate motor control units for dual motors, thus saving space and cost. TB67H302HG features a current-based motor control scheme, which allows higher efficiency and precise motor control compared to voltage-based motor control scheme. In addition, it offers voltage range support up to 16V and current limit up to 3A, making it suitable for most of mid- to low-power motor applications. It also features short-circuit protection and over-temperature protection, making it highly reliable in applications where high operation temperatures are expected. The logic input pins are compatible with various logic levels, making interfacing easier. In summary, TB67H302HG can be used in robotic arms, pipe cleaners, and other motion control products.

Working Principle

TB67H302HG utilizes a current-based motor control method to achieve precise movement control, absolute position control, and smooth speed control. This method works by providing an adjustable current to the motors (depending on the desired speed or position). A phase current regulator is used to compare the phase current and compare with the phase-setting value (input from logic pins). If the phase current value is higher than the phase-setting current, the phase current will be regulated to the phase-setting current. This method enables smooth current control and precise movement of the motors.

Conclusion

TB67H302HG is an ideal motor driver IC for mid- to low-power applications. It features a current-based motor control scheme, providing precise motor control and higher efficiency compared to voltage-based control scheme. It provides short-circuit protection and over-temperature protection, making it highly reliable in application with high operation temperature. The logic input pins are compatible with various logic levels, making interfacing easier. It has wide application in motion control products, such as robotic arms , pipe cleaners, and other complex motion products.

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