LM3551 Datasheet 1A White LED Driver

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM3551/LM3552 1A White LED Driver with Flash Timeout Protection August 2005 LM3551/LM3552 1A White LED Driver with Flash Timeout.

📥 Download Datasheet

LM3551 1a white led driver by National Semiconductor (now Texas Instruments) - Datasheet Preview

Datasheet Details

Part number	LM3551
Manufacturer	National Semiconductor (now Texas Instruments)
File Size	756.51 KB
Description	1A White LED Driver
Download	LM3551 Download (PDF)

General Description

The LM3551 and LM3552 are fixed frequency, current mode step-up DC/DC converters with two integrated NFETs that can be used for precision LED brightness control.

The devices are capable of driving loads up to 1A from a single-cell Li-Ion battery.

The LM3551 and LM3552 can drive one or more high current flash LEDs either in a high power Flash mode or a lower power Torch mode using the TORCH/FLASH pin.

Key Features

n n n n n n n n n Up to 1A total drive current Flash timeout protection Independent Torch/Flash/Shutdown modes LED disconnect in shutdown Programmable soft-start limits inrush current Over-voltage protection Wide voltage range 2.7 to 5.5V 1.25MHz constant switching frequency Small, low profile package, non-pullback LLP14 (4mm x 4mm).

📁 Similar Datasheet

Brand Logo	Part Number	Description	Manufacturer
	LM3551	1A White LED Driver	Texas Instruments

More Datasheets from National Semiconductor (now Texas Instruments)

Part Number	Description
LM3552	1A White LED Driver
LM3553	1.2A Dual Flash LED Driver System
LM3557	Step-Up Converter
LM35	Precision Centigrade Temperature Sensors
LM350	3-Amp Adjustable Regulators
LM3501	Synchronous Step-up DC/DC Converter
LM3502	Step-Up Converter
LM3503	Dual-Display Constant Current LED Driver
LM350A	3-Amp Adjustable Regulators
LM351	Dual Peripheral Drivers