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LM2791

National Semiconductor
Part Number LM2791
Manufacturer National Semiconductor
Description Current Regulated Switched Capacitor LED Driver
Published Mar 22, 2005
Detailed Description LM2791 Current Regulated Switched Capacitor LED Driver with Analog Brightness Control July 2002 LM2791 Current Regulat...
Datasheet PDF File LM2791 PDF File

LM2791
LM2791

Overview
LM2791 Current Regulated Switched Capacitor LED Driver with Analog Brightness Control July 2002 LM2791 Current Regulated Switched Capacitor LED Driver with Analog Brightness Control General Description The LM2791 is a CMOS charge-pump voltage doubler and regulator that provides two regulated current sources.
The LM2791 is designed to drive two white (or blue) LEDs with matched currents (within ± 0.
3%) to produce balanced light sources for display backlights.
They accept an input voltage range from 3V to 5.
8V and maintain a constant current determined by an external set resistor.
The LM2791 delivers up to 36mA of load current to accommodate two high forward voltage (typically white) LEDs.
T...


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