LM3553 Datasheet 1.2A Dual Flash LED Driver System

Manufacturer: National Semiconductor (now Texas Instruments)

LM3553 1.2a dual flash led driver system by National Semiconductor (now Texas Instruments) - Datasheet Preview

Datasheet Details

Part number	LM3553
Manufacturer	National Semiconductor (now Texas Instruments)
File Size	435.91 KB
Description	1.2A Dual Flash LED Driver System
Download	LM3553 Download (PDF)

General Description

The LM3553 is a fixed frequency, current mode step-up DC/ DC converter with two regulated current sinks.

The device is capable of driving loads up to 1.2A from a single-cell Li-Ion battery.

One or more high current flash LEDs can be driven in series either in a high power Flash mode or a lower power Torch mode controlled by either an internal register or the FEN pin.

Overview

LM3553 1.2A Dual Flash LED Driver System with I2C Compatible Interface www.DataSheet4U.com March 6, 2008 LM3553 1.

Key Features

Accurate and Programmable LED Current up to 1.2A in.
128 Steps Total Solution Size < 30mm2 90% Peak Efficiency Drives 2 LEDs in Series with 1.2A from 5V Input Drives 2 LEDs in Series with 600mA from 3.0V Input Drives 1 LED with 1.2A from 3.0V Input Adjustable Over-Voltage Protection Allows for Single or Series LED Operation Four Operating Modes: Torch, Flash, Indicator, and Voltage Mode (4.98V) Programmable.

📁 Similar Datasheet

Brand Logo	Part Number	Description	Manufacturer
	LM3553	1.2A Dual Flash LED Driver	Texas Instruments

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