BA7660F-E2

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Power Management Integrated Circuit (PMIC) has become very important in the electronics market in recent years. Power management solutions in mobile, embedded and computing applications have been critical for system optimization and, in an ever-changing environment, continues to drive the industry forward. A great example of PMIC technology is the BA7660F-E2, which is a motor driver, controller and Low-dropout (LDO) linear regulator IC.

The BA7660F-E2 is the essential IC required for controlling the speed, position and torque of DC brushless motors in modern motor systems. The motor driver and controller effectively provides the necessary power management, sensing and PWM control for efficient motor operations in robotics, industrial and automation equipment, as well as in home and business appliances.

The BA7660F-E2 works by providing a voltage controlled current sink to the motor, with the current being sourced from the 3.3V to 24V power supply. The motor speed is adjusted using the internal PWM generator and the feedback sense resistor, with the PWM frequency up to 16KHz. The control circuit consists of a control FET and a low on-resistance sense FET, enabling low-ripple current and wide input voltage sensing range. The motor can be accelerated, decelerated, and reversed with little effort and is incorporated into the OCP circuit, which along with the shutdown circuit, provides enhanced protection under abnormal conditions.

The BA7660F-E2 also features an integrated LDO linear regulator with an input voltage ranging from 2.7V to 36V and up to 200mA output current. The LDO takes control when the input voltage is higher than the feedback voltage, and supplies power to an integrated 6.2V voltage regulator output. This allows the device to be easily used in systems with two-level power supply, both when the main power supply is connected or not.

In addition to the motor driver and LDO linear regulator, the device is also equipped with some other useful features. The PWM signal output is integrated with an output parking control circuit and can be used to control the PWM output status off, on and park. The PWM signal can also be used to control the drive current accuracy settle time. The IC also includes an over-temperature protection circuit, which shuts down the device to prevent damage caused by overheating.

To sum it up, the BA7660F-E2 is an essential integrated circuit for modern motor systems. It provides a voltage controlled current sink to the motor, along with PWM control and low-ripple current sensing. The integrated LDO linear regulator helps provide two-level power supply for the device. Other features such as output parking control, over-temperature protection, and drive current accuracy settle time make the device well suited for many types of applications.

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