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LM3502 Datasheet Step-Up Converter

Manufacturer: National Semiconductor (now Texas Instruments)

General Description

The LM3502 is a white LED driver for lighting applications.

For dual display or large single white LED string backlighting applications, the LM3502 provides a complete solution.

The LM3502 contains two internal white LED current bypass FET(Field Effect Transitor) switches that are ideal for controlling dual display applications.

Overview

LM3502 Step-Up Converter for White LED Applications August 2006 LM3502 Step-Up Converter for White LED Applications.

Key Features

  • n Drive up to 4, 6, 8 or 10 white LEDs for Dual Display Backlighting n >80% efficiency n Output Voltage Options: 16V , 25V , 35V, and 44V n Input Under-Voltage Protection n Internal Soft Start Eliminating Inrush Current n 1 MHz Constant Switching Frequency n Wide Input Voltage: 2.5V to 5.5V n Small External Components n Low Profile Packages:.