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SGM3132 - 4-Channel 1-Wire Dimming LED Driver

General Description

The SGM3132 is a 4-channel ultra-low dropout constant source parallel LED driver.

The SGM3132 uses an internal resistor to set the bias current for four LEDs.

The SGM3132 incorporates a single wire interface to program the output current at 16 continuous steps.

Key Features

  • Ultra-Low Dropout: 35mV/20mA.
  • Support up to 4 LEDs.
  • LED Sink Current 20mA.
  • ±3% LED Current Matching.
  • Deglitch Circuit.
  • Thermal Shutdown Protection.
  • 16-Step Brightness Control.
  • No EMI and Switch Noise.
  • Operating Temperature Range: -40℃ to +85℃.
  • Available in Green TQFN-3×3-16L, TDFN-2×2-8L and MSOP-8 Packages.

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Datasheet Details

Part number SGM3132
Manufacturer SG Micro
File Size 752.92 KB
Description 4-Channel 1-Wire Dimming LED Driver
Datasheet download datasheet SGM3132 Datasheet

Full PDF Text Transcription (Reference)

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SGM3132 4-Channel 1-Wire Dimming LED Driver with Ultra-Low Dropout Current Source GENERAL DESCRIPTION The SGM3132 is a 4-channel ultra-low dropout constant source parallel LED driver. The SGM3132 uses an internal resistor to set the bias current for four LEDs. The SGM3132 incorporates a single wire interface to program the output current at 16 continuous steps. It has an internal deglitch circuit for filtering the noise of the EN input. The SGM3132 requires only a 35mV dropout voltage at a 20mA load. The feature makes SGM3132 ideal for battery-operated systems, such as personal digital assistants. The SGM3132 is available in Green TQFN-3×3-16L, TDFN-2×2-8L and MSOP-8 packages and is specified over an ambient temperature range of -40℃ to +85℃.