BM6214FS-E2 Integrated Circuits (ICs)

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PMIC (Power Management Integrated Circuits) are commonly used in various electronics applications, such as embedded systems, industrial control, home automation and automotive. One of the most popular type of PMICs is motor drivers and controllers. The BM6214FS-E2 is one such device, which provides an integrated solution for controlling motor applications. In this article, we will discuss its application field as well as its working principle.

Application Field of BM6214FS-E2

The BM6214FS-E2 is a motor driver product for motors in automotive, white goods, and power tools in the low-voltage areas. The device features an efficient power selection function and an interaction between motor and the built-in motor monitor with the motor signal feedback. Its main function is to control the speed and torque of motors while reducing power consumption in the applications. The target applications of the BM6214FS-E2 include:

• Automotive power window, gear, sun roof, audio actuator, etc.
• White goods such as refrigerator, washing machine, air conditioner, fan and etc.
• Power tools such as drills, jigsaws, grinders and etc.

The BM6214FS-E2 can work with other motor products such as the DRV8800, DRV8807 and DRV8880 for low-voltage applications. The product features low current consumption and a wide operating temperature range. It also supports a wide range of motor, from DC motor and brushless motor to hybrid stepper motor.

Working Principle of BM6214FS-E2

The BM6214FS-E2 is a monolithic bipolar integrated circuit and it consists of two main parts: the integrated motor driver and the motor monitor. The motor driver contains all necessary components required to control the movement of the motor, including an H-Bridge driver, a current sense amplifier, an over-current /under-voltage protection and a PWM speed control circuit.

The motor monitor is an integral part of the BM6214FS-E2 and it features a peak current sensing and open-circuit detection function. The motor monitor measures the peak current through Hall sensors, which are mounted in the motor and it feeds the information back to the control circuit. The control circuit then controls the speed and torque of the motor based on the feedback from the motor monitor.

In addition, the BM6214FS-E2 device also provides an integrated power selection capability. The power selection function allows the user to easily adjust the current level of the motor by dynamically selecting a different power stage. The power selection feature is especially useful in applications where the speed of the motor needs to be adjusted frequently, such as in power tools.

Conclusion

The BM6214FS-E2 is a popular motor driver product for low-voltage applications. Its main function is to control the speed and torque of motors while reducing power consumption. It can work with other motor products for applications, such as automotive, white goods, and power tools. The device features an integrated motor driver, motor monitor, and power selection capability. The motor monitor measures the peak current through Hall sensors and the motor driver adjusts the motor operation base on the feedback from the motor monitor. This ensures an efficient and reliable operation of the motor.

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