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

AS3668 SmartLight Driver

4-channel breathlight controller

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The AS3668 is a 4-channel LED driver designed to produce lighting effects for portable devices. A highly efficient charge pump enables LED driving over full Li-Ion battery voltage range. The device is equipped with an internal program memory, which allows control of LED patterns even without processor control.

Key Features

  • Highly accurate 4 channel high side 25.5mA current sources
  • Audio controlled lighting with internal digital filters

Key Benefits

  • Easy generation of complex differentiating lighting effects
  • Smooth ramps and accurate colors
  • Smart audio controlled lighting effects

Product Facts

Performance [# of current sinks] 4
- [charge pump] 150mA
User memory [kbit]
Performance Featrues [RGB pattern]
- [dimming] log & lin
- [ext. PWM]
- [ext. trigger]
- [Audio-In]
- [LED Test]
Package WL-CSP12 (1.25x1.68)-0.4

Additional Information


 Indicator LEDs in smart watches, mobile phones, remote controls and battery powered portable devices