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AS1118 LED Driver IC

64 LED matrix driver IC

Features

  • Up to 64 LEDs in an 8x8 matrix
  • 4-bit PWM per line/digit and Rext current control per matrix
  • LED error diagnostic
  • SPI interface with EN pin

Benefits

  • Drive high LED count very easily
  • Individual brightness control of each digit/line
  • Improves picture quality & reduces test/maintenance time
  • Easy daisy chaining of drivers for big displays

Product parameters

Outputs [#] 64
LED Current per Output [mA] 5.5
Features Multiplexed, 1.8V, EN
Error Detection Yes
Read-Back Yes
LED-to-LED Matching [%] 3
Supply Voltage [V] 2.7 to 5.5
Package TQFN(4x4)-24

General Description

The AS1118 is a compact, SPI interfaced, dot-matrix LED driver IC for a 8x8 LED matrix or 8x 7-segment LEDs. It includes a 4-bit PWM for each segment and an external resistor can be used for analog current adjustment up to 5mA per LED. In addition the AS1118 offers a detailed short/open LED diagnostic as well as an enable/reset pin.

This product suits for the following applications:

  • White goods
  • Home appliance
  • Personal electronics
  • Public information displays
  • Medical devices

Resources

Name Type Description Language
AS1115-18_SW000189_2-00.zip Software Eval SW 2v40 English

Technical Documents

Name Type Description Version Language
AS1118_BD000254_1-00.png Block Diagram AS1118 Block Diagram 1-00 English
AS1118_DS000168_2-00.pdf Datasheet Document version 1.02 2-00 English
AS11xx_AS13xx_AS17xx_AS349x_AS36xx_EN000160_1-00.pdf EoL Notification AS11xx_AS13xx_AS17xx_AS349x_AS36xx (issued 2018-Oct) 1-00 English