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LM3552 Datasheet 1A White LED Driver

Manufacturer: Texas Instruments

Download the LM3552 datasheet PDF. This datasheet also includes the LM3551 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (LM3551-etcTI.pdf) that lists specifications for multiple related part numbers.

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.

Overview

LM3551, LM3552 www.ti.com SNVS371D – AUGUST 2005 – REVISED MAY 2013 LM3551 /LM3552 1A White LED Driver with Flash Timeout Protection Check for Samples: LM3551,.

Key Features

  • 1.
  • 2 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 WSON(4mm x 4mm).

📁 Similar Datasheet

Brand Logo Part Number Description Manufacturer
National Semiconductor Logo LM3552 1A White LED Driver National Semiconductor

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