Hualian County wholesale LED driver chips
Chips, also known as microcircuits, microchips and integrated circuits, are collectively referred to as semiconductor component products. Its main function is to control electronic equipment at any port. According to different processing signals, chips can be divided into analog chips and digital chips. Analog chips are mainly used to generate, amplify and process various analog signals, while digital chips are used to generate, amplify and process various digital signals, generally for logic operations.
LED display screen, as a high-tech product, has attracted great attention. The intelligent full-color display screen, which uses computer control and integrates light and electricity, has been applied in a wide range of fields. Its pixel points use LED light emitting diodes, and many light emitting diodes are arranged in a lattice way to form an LED array, which then forms an LED screen. Through different LED driving modes, images with different effects can be obtained. Therefore, the advantages and disadvantages of LED driver chips play an important role in the display quality of LED displays.
The electric drive LED driver chip is an electronic component used to drive LED (light-emitting diode). It can convert the power provided by the power supply into current or voltage suitable for LED operation to control the brightness and color of LED.
LED driver chips usually contain some key functional pins, such as power supply pins (VCC, VDD), which are used to connect to the power supply to provide working voltage for LED driver chips; Ground pin (GND), connected to the ground wire of the power supply, provides the reference point of the circuit to ensure normal current flow; Output pins (OUT+, OUT -) are the output ports of the LED driver chip, which are used to connect to LED lights. Normally, OUT+pin is connected to the positive pole of LED, and OUT pin is connected to the negative pole of LED.
LED power and current requirements, LED driver chips have a variety of different models and specifications. For example, some driver chips are designed for single channel high-power constant current drive, while others are suitable for multi-channel decorative lighting. When selecting the LED driver chip, it needs to match according to the specific application needs, LED specifications and power conditions.
Large output current: the large output current of mainstream constant current LED driver chip is about 90 mA per channel. It is more meaningful for the display screen to output a large value of constant current at the same time for each channel, because in the white balance state, each channel is required to output constant current at the same time.
Number of constant current output channels: The constant current source output channels have two specifications: 8-bit and 16 bit. 16 bit is the mainstream. Its main advantage is that it reduces the chip size and facilitates the wiring of LED driver boards (PCBs), especially for LED driver boards with small point spacing.
