LT3518

所属类别：LED驱动
产品名称：具 2.3A 开关电流的全功能 LED 驱动器
厂商：LT
生产批号：11+
封装：QFN-16
库存状态：有库存
库存量：2000
最低订购量：1
详细资料：

Product Introduction

The LT3518 is a full-featured LED driver with a switching current of 2.3A

peculiarity

3000 : 1 True Color PWM^TM 调光比
2.3A、45V 内部开关
100mV 高端电流检测
开路 LED 保护
可调频率范围：250kHz 至 2.5MHz
宽输入电压范围：
工作时为 3V 至 30V
瞬变保护至 40V
可工作于升压、降压和降压-升压模式
用于 PMOS LED 断接的栅极驱动器
恒定电流和恒定电压调节
CTRL 引脚提供 10 :1 模拟调光
低停机电流：
纤巧型 (4mm x 4mm) 16LeadQFNand16pinsTSSOPencapsulation

description

LT^®3518 是一个具有内部 2.3A、45V 开关的电流模式DC/DC 转换器，专为驱动 LED 而设计。LT3518 起了一个 LED 驱动器的作用，可在升压、降压和降压-升压模式中运作。它组合了一个传统的电压环路和一个独特的电流环路，以充当一个恒定电流源或恒定电压源。可编程开关频率允许针对效率或元件尺寸要求来优化外部元件。能够使 LT3518 的开关频率与一个外部时钟信号同步。可利用一个 100mV 检测电阻器从外部设置 LED 电流。外部 PWM 输入提供了 3000:1 LED 调光能力。CTRL 引脚可提供另外的 10:1 调光比。

The LT3518 comes in a small board-occupied 16-pin QFN (4mm x 4mm) and 16-pin TSSOP package. The LT3518 offers a complete solution for applications with constant voltage and constant current.

apply

显示器背面照明
汽车和航空电子照明
照明
扫描仪

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