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SGM3142

Shengbang Microelectronics
Part Number SGM3142
Manufacturer Shengbang Microelectronics
Description 6-Channel Charge Pump White LED Driver
Published May 17, 2016
Detailed Description SGM3142 6-Channel Charge Pump White LED Driver with Low Dropout Current Source GENERAL DESCRIPTION The SGM3142 is a hig...
Datasheet PDF File SGM3142 PDF File

SGM3142
SGM3142


Overview
SGM3142 6-Channel Charge Pump White LED Driver with Low Dropout Current Source GENERAL DESCRIPTION The SGM3142 is a high efficiency and cost effective charge pump white LED driver.
It supports up to 6 white LEDs and regulates a constant current for uniform intensity.
The part maintains the high efficiency by utilizing a 1×/1.
5× fractional charge pump and low dropout current sources.
The small equivalent 1× mode open loop resistance and ultra-low dropout voltage of current source extend the operating time of 1× mode and optimize the efficiency of Li-ion battery in white LED applications.
User can easily configure each LED current from 1.
25mA to 20mA by a pulse dimming control.
The dimming of white LEDs current can be achieved by applying a pulse signal to the EN/SET pin.
There are totally 16 steps of current could be set by users.
The operating voltage range is 2.
7V to 5.
5V.
Internal soft-start circuitry effectively reduces the in-rush current while both start-up and mode transition.
T...



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