144 LED full color crossplexing driver IC with CP


  • Up to 144 LEDs as 2x 8x9 or 3x 5x6
  • 8-bit PWM per LED and current control per matrix
  • 6 frames of memory
  • Internal automatic charge pump


  • Excellent PCB real estate vs LED count
  • 16.7M full color matrix with white balance
  • Reduces MCU load and increases battery lifetime
  • Extends battery lifetime while reducing BOM and increasing ease of use

Product parameters

Outputs [#] 144
LED Current per Output [mA] 5
Features 320mA charge pump; 6 Frames; cross-plexing
Error Detection Yes
Read-Back Yes
LED-to-LED Matching [%] 2
Supply Voltage [V] 2.7 to 5.5
Package WL-CSP(3x3)-36

General Description

The AS1119 is a I²C interfaced, ultra-compact cross-plexing LED driver IC for 144 single LEDs with error diagnostic. It offers a 8-bit PWM per LED and a 8-bit analog current adjustment on each matrix for up to 5mA per LED. It offers 6 frames of memory reducing MCU load and an internal automatic charge pump supplying individual LEDs with a higher voltage if required.

Not Recommended for New Designs
ams AG is discontinuing production of this device.

This product suits for the following applications:

  • Personal electronics
  • Mobile phones
  • Fitness bands
  • Home appliance
  • Keyboard backlight
  • Lighting effects


Title Category Headline Buy
AS1119DemoKit Application Board Demo Kit for AS1119

Technical Documents

Type Description Language
Datasheet Document version 2-00 English
Application Note Cross-Plexing English
User Guide Evaluation Suite Software English


Type Description Language
EoL Notification AS252x, AS36xx, AS37xx_AS3956 (issued 2019-Sep) English

Other Information

Type Description Language
Block Diagram AS1119 Block Diagram English