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SGM3140 - 500mA Buck/Boost Charge Pump LED Driver

Datasheet Summary

Description

The SGM3140 is a current-regulated buck/boost charge pump LED driver capable of driving 500mA output current.

It is ideal for powering high brightness LEDs for camera flash applications.

The SGM3140 has 1×/2× operation mode to control the output current for flash and torch modes.

Features

  • such as over-voltage protection, over-current protection and thermal shutdown. The SGM3140 is available in a Green TDFN-3×3-10L package and is specified over an ambient temperature range of -40℃ to +85℃.

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Datasheet Details

Part number SGM3140
Manufacturer Shengbang Microelectronics
File Size 704.79 KB
Description 500mA Buck/Boost Charge Pump LED Driver
Datasheet download datasheet SGM3140 Datasheet
Additional preview pages of the SGM3140 datasheet.

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Full PDF Text Transcription

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SGM3140 500mA Buck/Boost Charge Pump LED Driver GENERAL DESCRIPTION The SGM3140 is a current-regulated buck/boost charge pump LED driver capable of driving 500mA output current. It is ideal for powering high brightness LEDs for camera flash applications. The SGM3140 has 1×/2× operation mode to control the output current for flash and torch modes. The supply voltage operates from 2.7V to 5.5V and is well suited for various applications powered by a 1-cell Li-Ion battery, as well as 3-cell or 4-cell NiCd, NiMH or Alkaline batteries. The SGM3140 automatically converts between boost and buck modes. Therefore, it ensures that LED current cannot be restricted by the forward voltage. High switching frequency makes it easy to use tiny components.
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