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SGM3127

Shengbang Microelectronics
Part Number SGM3127
Manufacturer Shengbang Microelectronics
Description White LED Driver
Published May 17, 2016
Detailed Description SGM3127 White LED Driver with Low Dropout Current Source GENERAL DESCRIPTION The SGM3127 low-dropout bias supply for wh...
Datasheet PDF File SGM3127 PDF File

SGM3127
SGM3127

Overview
SGM3127 White LED Driver with Low Dropout Current Source GENERAL DESCRIPTION The SGM3127 low-dropout bias supply for white LEDs is a high-performance alternative to the simple ballast resistors used in conventional white LED designs.
It is optimized for low power keypad and portable backlighting applications.
The SGM3127 uses an internal resistor to set the bias current for four LEDs, which are matched to ±5%.
The SGM3127's advantages over ballast resistors include much lower bias variation with supply voltage variation, significantly lower dropout voltage, and in some applications, significantly improved efficiency.
The SGM3127 requires only a 50mV dropout voltage at a 30mA load on each output to match the LED brightness.
The SGM3127 is available in Green SOT-23-6 package.
It operates over an ambient temperature range of -40℃ to +85℃.
FEATURES ● Support up to 4 LEDs ● Low 50mV Dropout at 30mA ● Less than ±5% LED Current Matching ● Simple LED Brightness Control ● Low Shutdown Current ● 2.
5V to 5.
5V Supply Voltage Range ● Thermal Shutdown Protection ● Operating Temperature Range: -40℃ to +85℃ ● Available in Green SOT-23-6 Package APPLICATIONS Wireless Handsets MP3, MP4, and PMP Cellular Phones Portable Communication Devices Digital Cameras, Camcorders PDAs, Palmtops, and Handy Terminals LED/Display Back Light Driver LEDs for Camera Flash Battery-Powered Equipment SG Micro Corp www.
sg-micro.
com REV.
A.
3 SGM3127 White LED Driver with Low Dropout Current Source PACKAGE/ORDERING INFORMATION MODEL SGM3127 ORDER NUMBER SGM3127YN6G/TR PACKAGE DESCRIPTION SOT-23-6 SPECIFIED TEMPERATURE RANGE -40℃ to +85℃ PACKAGE OPTION Tape and Reel, 3000 MARKING INFORMATION S01XX NOTE: Order number and package marking are defined as the follow: ORDER NUMBER MARKING INFORMATION SGM3127 X X G / TR S01 X X Tape and Reel Green Product Month assembled ("A" = Jan.
"B" = Feb.
… "L" = Dec.
) Year assembled ("9" = 2009, "A" = 2010 …) Package Type N6 SOT-23-6 Operating Temperatur...


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