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LM3642

1.5-A Synchronous Boost LED Flash Driver

LM3642 Features

* 1 1.5-A High-Side Current Source for Single LED

* > 85% Efficiency in Torch Mode (at 100 mA) and Flash Mode (at 1 A to 1.5 A)

* Accurate Programmable Flash LED Current from 93 mA to 1.5 A

* Accurate Programmable Torch LED Currents:

* 48.4 mA to 375 mA

LM3642 General Description

The LM3642 is a 4-MHz fixed-frequency synchronous boost converter plus 1.5-A constant current driver for a high-current white LED. The high-side current source allows for grounded cathode LED operation providing Flash current up to 1.5 A. An adaptive regulation method ensures the current source rema.

LM3642 Datasheet (962.29 KB)

Preview of LM3642 PDF

Datasheet Details

Part number:

LM3642

Manufacturer:

Texas Instruments ↗

File Size:

962.29 KB

Description:

1.5-a synchronous boost led flash driver.
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3642 SNVS891H

* SEPTEMBER 2012

* REVISED S.

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LM3642 1.5-A Synchronous Boost LED Flash Driver Texas Instruments

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