Datasheet4U Logo Datasheet4U.com

LM3550 - 5-A Super-Capacitor Flash LED Driver

General Description

The LM3550 device is a low-noise, switchedcapacitor DC-DC converter designed to operate as a current-limited and adjustable (up to 5.3 V) supercapacitor charger.

Key Features

  • 1 Up to 5 A Flash Current.
  • 4 Selectable Super-Capacitor Charge Voltage Levels (4.5 V, 5 V, 5.3 V, Optimized).
  • Adjustable Torch Current (60 mA to 200 mA).
  • Ambient Light or LED Thermal Sensing With Current Scaleback.
  • Dedicated Indicator LED Current Source.
  • No Inductor Required.
  • Programmable Flash Pulse Duration, and Torch and Flash Currents via I2C-Compatible Interface.
  • True Shutdown (LED Disconnect).
  • Flash Timeout Pr.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
LM3550 5A Flash LED Driver National Semiconductor Corporation

Other Datasheets by Texas Instruments

Part Number Description
LM3551 1A White LED Driver
LM3552 1A White LED Driver
LM3553 1.2A Dual Flash LED Driver
LM3554 Synchronous Boost Converter
LM3555 Synchronous Boost Converter
LM3556 1.5-A Synchronous Boost LED Flash Driver
LM3557 Step-Up Converter
LM3559 Synchronous Boost Flash Driver
LM35 Precision Centigrade Temperature Sensor
LM350 3-Amp Adjustable Regulator

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design LM3550 SNVS569C – MAY 2009 – REVISED OCTOBER 2016 LM3550 5-A Super-Capacitor Flash LED Driver 1 Features •1 Up to 5 A Flash Current • 4 Selectable Super-Capacitor Charge Voltage Levels (4.5 V, 5 V, 5.3 V, Optimized) • Adjustable Torch Current (60 mA to 200 mA) • Ambient Light or LED Thermal Sensing With Current Scaleback • Dedicated Indicator LED Current Source • No Inductor Required • Programmable Flash Pulse Duration, and Torch and Flash Currents via I2C-Compatible Interface • True Shutdown (LED Disconnect) • Flash Timeout Protection • Low Profile 20-Pin UQFN Package (3 mm × 2.5 mm × 0.