LM3553 - 1.2A Dual Flash LED Driver System

National Semiconductor

Datasheet Details

Part number	LM3553
Manufacturer	National Semiconductor ↗
File Size	435.91 KB
Description	1.2A Dual Flash LED Driver System
Datasheet	LM3553_NationalSemiconductor.pdf

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

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.

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Published: Jun 26, 2009 |