LM3520 - Integrated White LED Driver

Product Overview

National Semiconductor

Datasheet Details

Part number	LM3520
Manufacturer	National Semiconductor
File Size	963.36 KB
Description	Integrated White LED Driver
Datasheet	LM3520 Datasheet
Additional preview pages of the LM3520 datasheet.

Product details

Description

The LM3520 is a dual step-up DC/DC converter, designed to drive up to 5 white LEDs with a constant current and to power an organic LED display with a constant voltage.

Features

include a low-side NFET switch that can turn off the LED string with no DC current path to ground. The LM3520 is available in a small 14-pin thermallyenchanced LLP package. Features n Integrated OLED and white-LED driver n 80% efficiency n Drives up 5 LEDs at 20mA/3.6V and 4 LEDs at 30mA/3.6V for main-display n Up to 20V @ 50mA/3.6V for sub-display n True shutdown isolation n Small External Components n 1 MHz Switching Frequency n 23V OverVoltage Protection n Wide Input Voltage Range: 2.7V to 5.

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Published: Apr 16, 2005 |