Recently, the problem of shortage of drive IC has disturbed entire led industry. It cause longer lead time and price increasing wildly. So we may be curious about why drive IC is so important in the led display industry and what kind of function it has.
In the work of LED display, the function of the driver IC is to receive the display data (from the receiving card or the video processor and other information sources) in accordance with the agreement, and to produce the PWM and current time changes internally, and the output and brightness grayscale refresh, etc. The relevant PWM current is used to light the LED. The peripheral IC composed of driver IC, logic IC, and MOS switch work together on the display function of the LED display and determine the display effect it presents.
At present, mainstream driver IC suppliers in the industry have successively introduced highly integrated 48-channel LED constant current driver ICs, which integrate large-scale peripheral circuits into the driver IC wafers, which can reduce the complexity of the application-side PCB circuit board design. It also avoids the problems caused by the design ability or design differences of the engineers of various manufacturers.