LM3464EVAL

4 通道 LED 驱动器评估模块

LM3464EVAL

立即订购

概述

The LM3464 is a linear LED driver with Dynamic Headroom Control (DHC) technology designed to drive four serial high power / high brightness LED strings. Four individual linear current regulators with low-side N-channel MOSFETs realize regulations of LED currents. The DHC optimizes system efficiency automatically while maintaining stable and accurate LED currents. The LM3464 includes a voltage regulator for powering the internal circuits that operates over wide input range of 12V to 80V, eases the design of driver stage for different source voltage. The Thermal foldback feature is designed to prolong the lifetime of the LEDs by reducing the average LED current for applications with high ambient temperature. The LM3464 features a fault handling circuit that avoids system failure due to accidentally short or open circuit of LED strings. Two or more LM3464 can be cascaded to expand the number of output channels, enabling flexible system architectural design.

This evaluation board demonstrates the system efficiency and LED current regulation accuracy of the LM3464 LED driver typical application circuit as a 50W LED lighting system.

特性

Standard Settings of the Evaluation Board

  • Vin range 12V to 80V
  • 48V LED turn ON voltage
  • 350mA LED current per channel
  • 2kHz thermal foldback dimming frequency
照明 LED 驱动器
LM3464 具有动态余量控制和热控制接口的 80V LED 驱动器
下载 观看带字幕的视频 视频

立即订购并开发

评估板

LM3464EVAL/NOPB — 4 Channel LED Driver Evaluation Board

登录以订购
In stock / Out of stock
数量限制:
TI.com 上无现货
应遵守 TI 的评估模块标准条款与条件.

技术文档

star
= TI 精选文档
未找到结果。请清除搜索,并重试。
查看所有 2
类型 标题 下载最新的英文版本 日期
* 用户指南 AN-2071 LM3464A 4 Channel LED Driver Evaluation Board (Rev. C) 2011年 6月 3日
证书 LM3464EVAL/NOPB EU Declaration of Conformity (DoC) 2019年 1月 2日

支持与培训

可获得 TI E2E™ 论坛的工程师技术支持

查看所有论坛主题 查看英文版所有论坛主题

所有内容均由 TI 和社区网友按“原样”提供,并不构成 TI 规范。参阅使用条款

如果您对质量、包装或订购 TI 产品有疑问,请参阅 TI 支持

视频