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LM3559 - Synchronous Boost Flash Driver

Texas Instruments

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Datasheet Details

Part number	LM3559
Manufacturer	Texas Instruments
File Size	4.11 MB
Description	Synchronous Boost Flash Driver
Datasheet	LM3559-etcTI.pdf

LM3559 Product details

Description

The LM3559 is a 2-MHz fixed-frequency synchronous boost converter with two 900-mA constant current drivers for high-current white LEDs.

Features

1 Dual High-Side Current Sources Allow for Grounded Cathode LED Operation.
Accurate and Programmable LED Current from 28.125 mA to 1.8 A.
Optimized Flash Current During Low Battery Conditions.
Independent LED Current Source Programmability.
Four Operating Modes: Torch, Flash, Privacy Indicate, and Message Indicator.
4-Bit Analog-to-Digital (ADC) for VLED Monitoring.
Battery Voltage Sensing and Current Scale-Back.
LED Sensing.

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Published: Jun 15, 2020 |