SGM3131 120mA 4-Channel Charge Pump White LED Driver

Shengbang Microelectronics

Description

SGM3131 120mA 4-Channel Charge Pump White LED Driver with Low Dropout Current Source GENERAL .
The SGM3131 is a current-regulated white LED driver with integrated low dropout current sources and a high efficiency charge pump.

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Datasheet Specifications

Part number: SGM3131
Manufacturer: Shengbang Microelectronics
File Size: 633.51 KB
Datasheet: SGM3131-ShengbangMicroelectronics.pdf
Description: 120mA 4-Channel Charge Pump White LED Driver

Features

* Input Voltage Range: 2.7V to 5.5V
* Support up to 4 LEDs at 30mA Each
* 16-Step LED Brightness Control Through One-Wire Interface
* 1× and 1.5× Charge Pump for High Conversion Efficiency
* Switching Frequency: 1MHz
* 1% Regulated LED Current Matching
* Built-in Soft-Sta

Applications

* powered by a Li-Ion battery due to small equivalent open-loop resistance in 1× mode. The supply voltage operates from 2.7V to 5.5V. The SGM3131 supports up to 4 LEDs for total maximum 120mA current. The ISET reference current is set through an external resistor on the ISET pin. The SGM3131 contains

SGM3131 Distributors

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SGM3131 120mA 4-Channel Charge Pump White LED Driver Shengbang Microelectronics

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