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SGM3134

SG Micro
Part Number SGM3134
Manufacturer SG Micro
Description White LED Driver
Published Mar 12, 2019
Detailed Description GENERAL DESCRIPTION The SGM3134 low-dropout bias supply for white LEDs is a high-performance alternative to the simple b...
Datasheet PDF File SGM3134 PDF File

SGM3134
SGM3134

Overview
GENERAL DESCRIPTION The SGM3134 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 SGM3134 uses an internal resistor to set the bias current for four LEDs, which are matched to ±5%.
The SGM3134'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 SGM3134 requires only a 40mV dropout voltage at a 20mA load on each output to match the LED brightness.
The SGM3134 is available in Green SOT-23-6L package.
It operates over an ambient temperature range of -40℃ to +85℃.
SGM3134 White LED Driver with Low Dropout Current Source FEATURES ● Support up to 4 LEDs ● Low 40mV Dropout at 20mA ● Less than ±5% LED Current Matching ● Simple LED Brightness Control ● Low ...


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