ams’ AS1119 is a compact LED driver for 144 (90) single LEDs. The devices can be programmed via an I²C compatible interface. This LED driver offers two blocks driving each 72 LEDs (three blocks each 30 LEDs) with 1/9 (1/6) cycle rate. The required lines to drive all 144 (90) LEDs are reduced to 18 by using the cross-plexing feature optimizing space on the PCB. Every block driving 72 (30) LEDs can be analog dimmed from 1 mA to 30 mA in 256 steps (8-bit). With a 2.7 V ~ 5.5 V supply, the AS1119 provides an 8-bit PWM per LED and an 8-bit analog current adjustment on each matrix for up to 5 mA per LED. This driver has a temperature range of -40°C ~ +85°C and comes in a 36-WLCSP package. The AS1119 was designed for wearable fitness, smart phones, home appliances, and keyboard backlights.