AS1119 144-Channel LED Driver

ams' AS1119 drives 144 LEDs, creating colorful and smooth animations while extending battery life

Image of ams AS1119 144 Channel LED Driverams' AS1119 drives 144 LEDs and requires only 9 mm² PCB space, reduces external component count reduces connector pin counts, and requires fewer PCB layers. Benefits for end users include up to 80% longer battery life, more colorful effects, and smoother running animations. The AS1119 is targeted for dot matrix displays in mobile phones, personal electronics, and toys. The AS1119 leads the industry by driving the most LEDs, each with an 8-bit dimming control and no external resistor required. Additionally, an 8-bit analog current control allows fine-tuning of each matrix to compensate for different brightness levels of different colors or to adjust the white balance on RGB LEDs. The AS1119 incorporates six frames of memory for small animations or for use as a buffer to reduce host processor load, thereby saving energy and precious processing time.

Features and Benefits
  • 144 LEDs @ 8-bit PWM: 16.7 million colors or 256 steps grayscale
  • Longer battery life: regulated power supply gives +20% efficiency
  • 8-bit analog / 8-bit PWM brightness control
  • Cross-plexed LED channels
  • Small PCB space required: WL-CSP-36 3 mm x 3 mm with 0.5 mm pitch
  • 320 mA CP 1:1 / 1:1.5 / 1:2 mode
  • Automatically select battery or CP per string
  • Six frames of memory
  • I²C interface
  • Dot matrix displays in mobile phones, personal electronics, and toys


ImageManufacturer Part NumberDescriptionDisplay TypeConfigurationAvailable Quantity
AS1119-BWLT datasheet linkIC LED 144CH DRIVER 36WLCSPAS1119-BWLTIC LED 144CH DRIVER 36WLCSPLEDDot Matrix8830 - Immediate
AS1119-BWLT product page link
Published: 2013-07-02