SGM3140B 500mA Buck/Boost Charge Pump LED Driver

Shengbang Microelectronics

Description

SGM3140B 500mA Buck/Boost Charge Pump LED Driver GENERAL .
The SGM3140B is a current-regulated charge pump ideal for powering high brightness LEDs for camera flash applications.

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Datasheet Specifications

Part number: SGM3140B
Manufacturer: Shengbang Microelectronics
File Size: 421.61 KB
Datasheet: SGM3140B-ShengbangMicroelectronics.pdf
Description: 500mA Buck/Boost Charge Pump LED Driver

Features

* a very low shutdown current, an automatic soft-start mode to limit inrush current, as well as over-current, over-voltage and over-temperature thermal shutdown control. A low current-sense reference voltage (47mV) allows the use of small 0603 current sensing resistors. The SGM3140B is available in Gr

Applications

* The charge pump can be set to regulate two current levels for Flash and Torch modes. The SGM3140B 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 volta

SGM3140B Distributors

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SGM3140B 500mA Buck Boost Charge Pump LED Driver Shengbang Microelectronics

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