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SGM31323 - Constant Current RGB LED Driver

General Description

The SGM31323 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.
  • 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.
  • Fast and Smooth Startup.
  • Less than 1μA Shutdown Current.
  • -40℃ to +85℃ Operating Tem.

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Datasheet Details

Part number SGM31323
Manufacturer SG Micro
File Size 703.24 KB
Description Constant Current RGB LED Driver
Datasheet download datasheet SGM31323 Datasheet

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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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SGM31323 Constant Current RGB LED Driver with I2C Interface GENERAL DESCRIPTION The SGM31323 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 9 internal registers and an internal decoder.