AS1112

Datasheet AS1112 16-Channel LED Driver with Dot Correction and Greyscale PWM Technical coantmesntAsGtill valid 1 General Description The AS1112 is a 16-channel, constant current-sink LED driver. Each of the 16 channels can be individually adjusted by 4096-step greyscale PWM brightness control and 64-step constant-current sink (dot correction). The dot correction circuitry adjusts the brightness variations between the AS1112 channels and other LED drivers. Greyscale control and dot correction circuitry are accessible via the SPI-compatible serial interface. A single external resistor sets the maximum current value of all 16 channels. The open & short LED detection function indicates a broken, shorted or disconnected LED at one or more of the outputs. The overtemperature flag indicates that the device is in an overtemperature condi- tion. Table 1. Standard Products Model AS1112 AS1112B AS1112C Power-Down Yes No No TEST pin Output Delay Connect to GND Yes Connect to VCC Yes ...