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LM2791 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LM2791
Description  Current Regulated Switched Capacitor LED Driver with Analog Brightness Control
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LM2791 Datasheet(HTML) 3 Page - National Semiconductor (TI)

 
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Pin Description
Pin
Name
Function
1
BRGT
Variable voltage input controls output current.
2P
OUT
Charge pump output.
3
C1−
Connect this pin to the negative terminal of C1.
4
C1+
Connect this pin to the positive terminal of C1.
5
D2
Current source outputs. Connect directly to LED.
6
D1
Current source outputs. Connect directly to LED.
7
GND
Power supply ground input.
8V
IN
Power supply voltage input.
9
SD/SD
Shutdown input. Device operation is inhibited when pin is asserted.
10
I
SET
Current Sense Input. Connect resistor to ground to set constant current through LED.
Block Diagram
20018302
www.national.com
3


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