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LM3556 - 1.5-A Synchronous Boost LED Flash Driver

Texas Instruments

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Datasheet Details

Part number	LM3556
Manufacturer	Texas Instruments
File Size	1.18 MB
Description	1.5-A Synchronous Boost LED Flash Driver
Datasheet	LM3556-etcTI.pdf

LM3556 Product details

Description

The LM3556 is a 4-MHz fixed-frequency synchronous boost converter plus 1.5-A constant current driver for a high-current white LED.

Features

1 Grounded Cathode LED Operation for Improved Thermal Management.
1.5-A High-Side Current Source for Single LED.
Accurate and Programmable LED Current from 46.9 mA to 1.5 A.
> 85% Efficiency in Torch Mode (at 100 mA) and Flash Mode (at 1 A to 1.5 A).
Small Solution Size: < 20 mm2.
LED Thermal Sensing and Current Scale-Back.
Soft-Start Operation for Battery Protection.
Hardware Enable Pin.
Hardware Torch Enable.

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Published: Jun 15, 2020 |