How to choose brushless DC motor driver chip?

The brushless DC motor, a common mechatronic item, consists of the motor's primary body and the driver. The motor's rotor winding uses a three-phase star interface, very similar to that of a three-phase AC motor. A phase sensor is put in the motor to monitor the optical rotation of the generator rotor.The controller is composed of output power electronic components and integrated circuit chips, so how to choose the brushless DC motor driver chip? The following Vshida Micro Motor will give you a brief introduction.

1. Data moving digital clock: It shows the data transmission rate, a significant factor that impacts how quickly the display updates. To provide a robust interface as a large-capacity display device, the display refresh rate should be higher than 85Hz (no flicker). The foundation for the display to acquire a high refresh rate interface is a higher data moving digital clock. The device is now driven by the widely used constant current source, which raises the clock frequency typically above 15–25MHz.

2. The quantity of output channels for the constant current power supply has two different specifications: 8-bit and 16-bit. 16-bit is now widely used. Its main benefit is the lowering of chip parameters, which helps the LED driver board (PCB). Wire is preferable, particularly for LED driver boards with narrow dot spacing.

3. Low-end LED display products, such as indoor single-color and two-color screens, typically use general-purpose chips. The most popular general-purpose chips come with tri-state output capabilities, serial-parallel shift registers, and 8-bit latches. Maximum non-constant current power supply output for each channel is 35mA.

4. A greater output current of roughly 90mA per channel is provided by the currently well-liked constant current source LED driver chips. As automated white balance requires that each channel also provide constant current power supply current, it makes more sense for the monitor to output the highest value of stable current for each channel.

The above are the major considerations for the selection of brushless DC motor driver chips that we introduced to you. For more information, please contact us.