LM2794, LM2 Datasheet - National Semiconductor

LM2794, LM2, Current Regulated Switched Capacitor LED Driver

LM2794/LM2795 Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control May 2003 LM2794/LM2795 Current Regulated Switch.
The LM2794/95 is a fractional CMOS charge-pump that provides four regulated current sources.

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LM2-794.pdf

LM2794 Datasheet Preview — This datasheet PDF includes multiple part numbers: LM2794, LM2. Please refer to the document for exact specifications by model.

Datasheet Details

Part number:

LM2794, LM2

Manufacturer:

National Semiconductor

File Size:

470.52 KB

Description:

Current Regulated Switched Capacitor LED Driver

Note:

This datasheet PDF includes multiple part numbers: LM2794, LM2.
Please refer to the document for exact specifications by model.

Features

* n Regulated current sources with ± 0.5% matching between any two outputs n High efficiency 3/2 boost function n Drives one, two, three or four white LEDs n 2.7V to 5.5V Input Voltage n Up to 80mA output current n Analog brightness control n Active-low or high shutdown input (’94/95) n Very small sol

Applications

* n White LED Display Backlights n White LED Keypad Backlights n 1-Cell Li-Ion battery-operated equipment including PDAs, hand-held PCs, cellular phones Basic Application Circuit 20028503 © 2003 National Semiconductor Corporation DS200285 www. national. com LM2794/LM2795 Connection Diagram 20028

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