Datasheet4U Logo Datasheet4U.com

SGM3141B - 700mA Buck/Boost Charge Pump LED Driver

Datasheet Summary

Description

The SGM3141B is a current-regulated charge pump ideal for powering high brightness LEDs for camera flash applications.

The charge pump can be set to regulate two current levels for Flash and Torch modes.

Features

  • Output Current Up to 700mA.
  • Up to 90% Efficiency in Torch Mode.
  • Adjustable Flash Mode Current.
  • 1× and 2× Automatic Modes for High Efficiency.
  • Input Voltage Range: 2.7V to 5.5V.
  • Minimum External Components: No Inductors.
  • High Frequency Operation: 2.2MHz.
  • Low 47mV Reference for Low Loss Sensing.
  • IQ < 1μA in Shutdown.
  • Built-In Soft-Start Limits Inrush Current.
  • Low Input and Output Ripple and Low EMI.
  • Output Over-Voltage Protection.
  • O.

📥 Download Datasheet

Datasheet preview – SGM3141B

Datasheet Details

Part number SGM3141B
Manufacturer Shengbang Microelectronics
File Size 395.28 KB
Description 700mA Buck/Boost Charge Pump LED Driver
Datasheet download datasheet SGM3141B Datasheet
Additional preview pages of the SGM3141B datasheet.

📁 Similar Datasheet

  • 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)
  • SGM3207 - Unregulated 60mA Charge Pump Voltage Inverter (SG Micro)
  • SGM3209 - Charge Pump DC/DC Converter (SG Micro)
  • SGM32C1C332-1A - compact physical dimensions (Sumitiomo)
  • SGM32C1E101-1A - compact physical dimensions (Sumitiomo)
  • SGM32C1E102-1A - compact physical dimensions (Sumitiomo)
Other Datasheets by Shengbang Microelectronics
  • SGM3141 - 700mA Buck/Boost Charge Pump LED Driver
  • SGM3140 - 500mA Buck/Boost Charge Pump LED Driver
  • SGM3140B - 500mA Buck/Boost Charge Pump LED Driver
  • SGM3142 - 6-Channel Charge Pump White LED Driver
  • SGM3144 - 6-Channel PWM Dimming Charge Pump White LED Driver
  • SGM3145 - 8-Channel PWM Dimming Charge Pump White LED Driver
  • SGM3146 - 8-Channel Charge Pump White LED Driver
  • SGM3110 - Micro-Power Regulated Charge Pump

Full PDF Text Transcription

Click to expand full text
SGM3141B 700mA Buck/Boost Charge Pump LED Driver GENERAL DESCRIPTION The SGM3141B is a current-regulated charge pump ideal for powering high brightness LEDs for camera flash applications. The charge pump can be set to regulate two current levels for Flash and Torch modes. The SGM3141B automatically switches modes between step-up and step-down ensuring that LED current does not depend on the forward voltage. It switches at 2.2MHz, allowing the use of tiny components. The supply voltage ranges from 2.7V to 5.5V and is ideally suited for all applications powered by a single Li-ion battery cell or three to four NiCd, NiMH, or Alkaline battery cells.
Published: |