LM3520 - Integrated White LED Driver

National Semiconductor

LM3520 Datasheet Preview — Preview of LM3520 PDF

Datasheet Details

Part number	LM3520
Manufacturer	National Semiconductor ↗
File Size	963.36 KB
Description	Integrated White LED Driver
Datasheet	LM3520_NationalSemiconductor.pdf

LM3520 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 |