AS1119
144 LED full color crossplexing driver IC with CP
Features
- 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
Benefits
- 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

Tools
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 |
Notifications
Type | Description | Language | ||
---|---|---|---|---|
EoL Notification | AS252x, AS36xx, AS37xx_AS3956 (issued 2019-Sep) | English |
Other Information
Type | Description | Language | ||
---|---|---|---|---|
Block Diagram | AS1119 Block Diagram | English |