LED Driver offers 12-bit PWM, dot correction, and diagnostics.
With 30 V LED supply voltage, 16-channel Model AS1121 can be used directly with 24 V supplies. Each of 16 channels can be individually adjusted by 4096-step greyscale PWM brightness control running at 10 MHz as well as by 64-step constant-current sink for dot correction. To prevent high inrush currents, IC offers controlled output delay grouped by 4 channels. Housed in 5 x 5 mm 32-pin TQFN package, driver meets needs of LED video walls and LED backlights in monitors and TVs.
