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LM3639AYFQEVM

SingleChip 40V Backlight + 1.5A Flash LED Driver Evaluation Module Board

LM3639AYFQEVM

Overview

SingleChip 40V Backlight + 1.5A Flash LED Driver Evaluation Module Board

The LM3639AYFQEVM aids in evaluation of the LM3639A Single-chip white LED Camera Flash Driver + LCD Display Backlight Driver. The low-voltage,high-current flash LED driver is a synchronous boost which provides the power for a single flash LED at up to1.5A or dual LEDs at up to 750 mA each. The high-voltage backlight driver is a dual-output asynchronous boostwhich powers dual LED strings at up to 40V and 30 mA per string. An adaptive regulation method in both boostconverters regulates the headroom voltage across the respective source/sink to ensure the LED current remainsin regulation while maximizing efficiency. The LM3639's flash driver is a 2MHz or 4MHz fixed-frequencysynchronous boost converter plus 1.5A constant current driver for a high-current white LED. The high-sidecurrent source allows for grounded cathode LED operation providing Flash current up to 1.5A.

Features
  • Single Chip White LED Flash and Backlight Driver
  • 1.5A Flash LED Current
  • Optimized Flash Current During Low-Battery Conditions
  • Dual String Backlight Control (40V Max VOUT)
  • 128 Level Exponential and Linear Brightness Control
  • PWM Input for CABC
Backlight LED drivers
LM3639A — LM3639A Single chip 40V backlight + 1.5A flash LED driver
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Evaluation board

LM3639AYFQEVM — SingleChip 40V Backlight + 1.5A Flash LED Driver Evaluation Module Board

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GUI for evaluation module (EVM)

LM3639AGUI — GUI Control Software for LM3639AYFQEVM

Supported products & hardware
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LM3639AGUI — GUI Control Software for LM3639AYFQEVM

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Latest version
Version: 01.00.00.00
Release date: 07 Mar 2013
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download GUI Control Software for LM3639AYFQEVM (zip)  — 1612 K

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Products
Backlight LED drivers
LM3639A — LM3639A Single chip 40V backlight + 1.5A flash LED driver
Hardware development
Evaluation board
LM3639AYFQEVM — SingleChip 40V Backlight + 1.5A Flash LED Driver Evaluation Module Board

Release Infomation

The design resource accessed as www.ti.com/lit/zip/snvc074 or www.ti.com/lit/xx/snvc074/snvc074.zip has been migrated to a new user experience at www.ti.com/tool/download/SNVC074. Please update any bookmarks accordingly.
TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
* User guide LM3639A User's Guide 14 Mar 2013
Certificate LM3639AYFQEVM EU Declaration of Conformity (DoC) 02 Jan 2019
Data sheet LM3639A Single Chip 40V Backlight + 1.5A Flash LED Driver datasheet 14 Mar 2013

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