A6261 高亮度 (HB) LED 白炽灯更换的典型应用

使用 Allegro MicroSystems 的 A6261 的参考设计

设计简介

A6261 高亮度 (HB) LED 白炽灯替代品的典型应用。 A6261 是一款线性可编程电流调节器，可从四个输出（LP 和 LY）中的每一个输出提供高达 100 mA 的电流，以驱动高亮度 LED 阵列。每个输出的调节 LED 电流（精确至 5%）由单个参考电阻器设置。在不使用镇流电阻的情况下，每个串的电流匹配优于 10%。以恒定电流驱动 LED 可确保安全运行并提供最大可能的光输出

说明

Typical Application for A6261 High brightness (HB) LED incandescent lamp replacement. The A6261 is a linear, programmable current regulator providing up to 100 mA from each of four outputs (LP and LY) to drive arrays of high brightness LEDs. The regulated LED current from each output, accurate to 5%, is set by a single reference resistor. Current matching in each string is better than 10% without the use of ballast resistors. Driving LEDs with constant current ensures safe operation with maximum possible light output

主要特色

Input Voltage

6 to 50 V
Number of Derived Elements

2

相关器件

器件	类型	描述	数据手册
A6261ELPTR-T	LED Drivers	LED Driver 9V/12V/15V/18V/24V 16-Pin TSSOP EP T/R	点击下载
A6261KLYTR-T	LED Drivers	LED Driver 9V/12V/15V/18V/24V Automotive 10-Pin MSOP EP T/R	点击下载
A6261KLPTR-T	LED Drivers	LED Driver 9V/12V/15V/18V/24V Automotive 16-Pin TSSOP EP T/R	点击下载