LM3432BSQX

所属类别：驱动芯片
产品名称：1.6MHz的，1A恒流降压LED驱动器
厂商：NSC
生产批号：09+
封装：SOT23-6
库存状态：有库存
库存量：8000
最低订购量：1
详细资料：

Product Introduction

特点

V _在经营范围为3V至22V
驱动多达5个高亮度串联LED在1A
薄型SOT23 - 6封装及eMSOP8暴露磷酸二铵
1.6MHz的开关频率
EN / DIM输入启用和PWM调光的LED
300mΩNMOS开关
40nA的关断电流在_V IN = 5V
内部补偿的电流模式控制
逐周期电流限制
输入电压UVLO
过电流保护
热关断

说明

LM3405A是一个1A恒流降压LED驱动器，设计为驱动高功率LED提供一个简单，高效率的解决方案。一个0.205V的参考电压反馈控制，使功耗降至最低，一个外部电阻设置电流，用于驱动LED的各类需要。开关频率在内部设置为1.6MHz的，允许使用小型表面贴装电感器和电容器将。 LM3405A采用电流模式控制和内部补偿，提供易于使用和可预见的，较广泛的运行条件下的高性能调控。随着一个22V的最大输入电压，它可以驱动多达5个高亮度串联LED的正向电流为1A，跟单，LED正向电压约3.7V。其他功能还包括启用和PWM调光的LED，热关断，逐周期电流限制和过电流保护的用户可访问的EN / DIM引脚。

应用

LED驱动器
恒流源
工业照明
LED手电筒
LED灯泡

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LM3432BSQX

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