SGM3124 White LED Charge Pump Current Source

Shengbang Microelectronics

Description

SGM3124 White LED Charge Pump Current Source with PWM Brightness Control GENERAL .
The SGM3124 is a charge pump with PWM brightness control for white LED supplies in LCD display backlight applications.

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Datasheet Specifications

Part number: SGM3124
Manufacturer: Shengbang Microelectronics
File Size: 382.79 KB
Datasheet: SGM3124-ShengbangMicroelectronics.pdf
Description: White LED Charge Pump Current Source

Features

* Input Voltage Range: 2.7V to 5.5V
* Drives up to 3 LEDs at 30mA Each
* LED Brightness Control Through PWM Control Signal
* High Efficiency by Fractional Conversion with 1× and 1.5× Modes
* Switching Frequency: 1MHz
* Regulated Output Current with 0.5

Applications

* The supply voltage ranges from 2.7V to 5.5V, it is ideally suited for all applications powered by a single Li-ion battery cell or three to four NiCd, NiMH, or alkaline battery cells. The device provides a constant current for each LED, and the initial current value can be set by an external resisto

SGM3124 Distributors

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SGM3124 White LED Charge Pump Current Source Shengbang Microelectronics

Shengbang Microelectronics SGM3124-like datasheet