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SGM31324 - RGB LED Driver

General Description

The SGM31324 is a 3-channel, current-regulated RGB LED driver with an I2C-compatible interface.

It is well suited for various applications powered by a 1-cell Li-Ion or Li-Polymer, or systems with 3.3V or 5V supply voltages, as well as 3-cell NiCd, NiMH or Alkaline batteries.

Key Features

  • Input Voltage Range: 2.5V to 5.5V.
  • Ultra-Low 30mV Dropout Voltage at a 10mA Load per String.
  • Programmable LED Current through I2C Interface.
  • 0.125mA to 24mA Current Levels with 0.125mA Steps.
  • Automatic Blink Mode on D1 Pin.
  • Maximum LED1 Current: 8mA.
  • Blinking Period: 2s.
  • Independent Channel Control.
  • ON/OFF State Interval Time Control.
  • RGB LED Color Control.
  • Programmable Ramp-Up and Ramp-Down Time.
  • No Noise and Constant LED Current.

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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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SGM31324 Automatic Blink Mode, RGB LED Driver with I2C Interface GENERAL DESCRIPTION The SGM31324 is a 3-channel, current-regulated RGB LED driver with an I2C-compatible interface. It is well suited for various applications powered by a 1-cell Li-Ion or Li-Polymer, or systems with 3.3V or 5V supply voltages, as well as 3-cell NiCd, NiMH or Alkaline batteries. No external components are required for the three constant current sinks. With two programmable timers, users can adjust LED blinking time and get the result of fade-in and fade-out for unique color lighting. Programmable I2C interface allows independent channel control for LED ON or OFF state and LED brightness due to 10 internal registers and an internal decoder.