Datasheet4U Logo Datasheet4U.com

SGM3138 - 6-Channel Charge Pump White LED Driver

Description

The SGM3138 is a high performance white LED driver.

It integrates current sources and automatic mode selection charge pump.

The part maintains the high efficiency by utilizing a 1×/1.5× fractional charge pump and low dropout current sources.

Features

  • Input Voltage Range: 2.7V to 5.5V.
  • Drives Up to 6 LEDs at 20mA Each.
  • One Single Wire Interface.
  • 16-Step Brightness Control.
  • High Efficiency by Fractional Conversion with 1× and 1.5× Modes.
  • Switching Frequency: 1MHz.
  • Regulated Output Current with ±5% Matching.
  • Internal Soft-Start Limits Inrush Current.
  • Low Input Ripple and Low EMI.
  • Over-Current and Over-Temperature Protection.
  • Under-Voltage Lockout with Hysteresis.
  • Available in Green TQ.

📥 Download Datasheet

Datasheet Details

Part number SGM3138
Manufacturer SG Micro
File Size 314.92 KB
Description 6-Channel Charge Pump White LED Driver
Datasheet download datasheet SGM3138 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
SGM31323 Constant Current RGB LED Driver SG Micro
SGM31324 RGB LED Driver SG Micro
SGM3134 White LED Driver SG Micro
SGM3200 Charge Pump Boost DC/DC Integrated Load Switch SG Micro
SGM3204 Unregulated 200mA Charge Pump Voltage Inverter SG Micro

Other Datasheets by SG Micro

Part Number Description
SGM3131 120mA 4-Channel Charge Pump White LED Driver
SGM3132 4-Channel 1-Wire Dimming LED Driver
SGM3133 4-Channel Charge Pump White LED Driver
SGM3135 3-Channel LowDropout Low Side White LED Driver
SGM3139 6-Channel 1-Wire Dimming LED Driver

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.

View original datasheet text
SGM3138 6-Channel Charge Pump White LED Driver with Low Dropout Current Source GENERAL DESCRIPTION The SGM3138 is a high performance white LED driver. It integrates current sources and automatic mode selection charge pump. The part maintains the high efficiency by utilizing a 1×/1.5× fractional charge pump and low dropout current sources. The small equivalent 1× mode open loop resistance and ultra-low dropout voltage of current source extend the operating time of 1× mode and optimize the efficiency of Li-ion battery in white LED applications. The SGM3138 supports up to 6 white LEDs and regulates a constant current which the initial value can be set by an internal resistor. The part implements a 4-bit DAC for brightness control. Users can easily configure the LED current from 1.
Published: |