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FAN5606 - Serial LED Driver

General Description

The FAN5606 LED driver generates regulated output currents from a battery with input voltage varying between 2.7V to 5V.

An internal NMOS switch drives an external inductor, and a Schottky diode delivers the inductor’s stored energy to the load.

Key Features

  • Drives Up to Six LEDs in Series.
  • Pulse Skip PWM Mode of Operation of the Boost Circuit.
  • Up to 90% Peak Efficiency.
  • No External Schottky Diode Required.
  • Up to 25mA Output.
  • Built-in DAC for Digital Brightness Control.
  • LED’s Current Can be Duty-Cycle-Modulated.
  • Digital, Analog, and PWM Brightness Control.
  • 2.7V to 5.5V Input Voltage Range.
  • 0.5MHz Operating Frequency (8MHz internal clock).
  • Soft Start.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.fairchildsemi.com FAN5606 Serial LED Driver with Current-Regulated, Step-Up DC/DC Converter Features • Drives Up to Six LEDs in Series • Pulse Skip PWM Mode of Operation of the Boost Circuit • Up to 90% Peak Efficiency • No External Schottky Diode Required • Up to 25mA Output • Built-in DAC for Digital Brightness Control • LED’s Current Can be Duty-Cycle-Modulated • Digital, Analog, and PWM Brightness Control • 2.7V to 5.5V Input Voltage Range • 0.