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SGM31323

Constant Current RGB LED Driver with I2C Control
 
Constant Current RGB LED Driver with I2C Control
GENERAL DESCRIPTION

The SGM31323 is a fully programmable, constant current RGB LED driver with a flexible control interface. The device is ideally powered from 1-cell Lithium-Ion/ Polymer, 3-cell NiCd/NiMH/Alkaline batteries, or systems with 3.3V or 5V supplies. It provides 3 independent programmable constant current sinks without requiring any external components.

With an on-chip timing control unit, LED blink rate, fade-in and fade-out are user-adjustable resulting in unique color lighting patterns.

Nine internal registers are programmed via the I2C control interface with a built-in decoder allowing individual control of the LED channels’ ON/OFF state and current level. A total of 192 current levels are available for each channel from 0.125mA to 24mA with a 0.125mA step.

In shutdown mode, the quiescent current is reduced to less than 1μA.

The device is available in Green UTDFN-1.5×1.5-8L package. It operates over an ambient temperature range of -40 to +85.

PIN CONFIGURATIONS

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FEATURES
  • Ultra Low Dropout Regulated 3-CH Current Sinks

      30mV (TYP) at 10mA per Channel

  • Programmable LED Setting by I2C Compatible Interface

  • Individual Channel Control

      ON/OFF Interval Time Control

      Dimming Up/Down Time

      RGB LED Color Control

  • 192 Current-Level Setting

      0.125mA ~ 24mA, 0.125mA Step

  • No Noise, Non-Pulsating LED Current

  • Fast, Smooth Start-Up

  • Input Voltage Range: 2.5V to 5.5V

  • Less than 1μA Shutdown Current

  • -40 to +85 Operating Temperature Range

  • Available in Green UTDFN-1.5×1.5-8L Package

APPLICATIONS

RGB Indicator LEDs

Flashing LEDs

Mobile Phones

Handheld Devices

Digital Cameras

ORDERING INFORMATION
Part NumberStatusPackagePinsPb-FreeTemp Range
SGM31323YUDW8G/TRProductionUTDFN-1.5×1.5-8L8Y-40℃ to +85℃






 

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