Datasheet4U Logo Datasheet4U.com

SGM3144 - 6-Channel PWM Dimming Charge Pump White LED Driver

General Description

The SGM3144 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.

Key Features

  • Input Voltage Range: 2.7V to 5.5V.
  • Drives up to 6 LEDs at 27mA Each.
  • PWM Dimming.
  • High Efficiency by Fractional Conversion with 1× and 1.5× Modes.
  • Switching Frequency: 0.93MHz.
  • Regulated Output Current with ±4.8% 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 TQFN-3×3-16L Package.

📥 Download Datasheet

Datasheet Details

Part number SGM3144
Manufacturer SG Micro
File Size 306.08 KB
Description 6-Channel PWM Dimming Charge Pump White LED Driver
Datasheet download datasheet SGM3144 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
SGM3140 500mA Buck/Boost Charge Pump LED Driver
SGM3140B 500mA Buck/Boost Charge Pump LED Driver
SGM3141 700mA Buck/Boost Charge Pump LED Driver
SGM3141B 700mA Buck/Boost Charge Pump LED Driver
SGM3142 6-Channel Charge Pump White 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
SGM3144 6-Channel PWM Dimming Charge Pump White LED Driver GENERAL DESCRIPTION The SGM3144 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 SGM3144 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 PWM dimming to adjust the brightness of LED.