ams AG - global leader in the design and manufacture of high performance analog ICs (integrated circuits)

AS1123 LED Driver IC

16channel 40mA direct LED driver IC

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The AS1123 is a, 50MHz SPI interfaced, 40mA 16 channel direct LED driver IC and offers on-chip diagnostics. It can detect open/short LED position during operation and offers a (flickerfree) low current diagnostic mode. The AS1123 operates in 5V enviroment and is optimized for energy efficiency.


Key Features

  • Open/short error detection
  • Low current diagnostic mode
  • 5V output drivers
  • 50MHz SPI interface

Key Benefits

  • Improved picture quality & reduced maintaince cost through identifying defect LEDs & its position
  • No flickering during LED test
  • Best energy efficiency for 5V systems
  • Allows high resolution external PWM via SPI

Product Facts

Outputs [#] 16
LED current per output [mA] 40
Features low Vds
Error detection
LED-to-LED matching [%] 3
Supply voltage [V] 3~5.5V
Package QSOP-24; TQFN(4x4)-24

Additional Information

  • Public Information Displays
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  • Illumination