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LM3551

1A White LED Driver

LM3551 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 packa

LM3551 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 curr.

LM3551 Datasheet (756.51 KB)

Preview of LM3551 PDF

Datasheet Details

Part number:

LM3551

Manufacturer:

National Semiconductor

File Size:

756.51 KB

Description:

1a white led driver.
LM3551/LM3552 1A White LED Driver with Flash Timeout Protection August 2005 LM3551/LM3552 1A White LED Driver with Flash Timeout Protection General .

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TAGS

LM3551 White LED Driver National Semiconductor

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