LT3799

所属类别：LED驱动
产品名称：具备有源 PFC 功能的离线隔离型反激式 LED 驱动器
厂商：LT
生产批号：11+
封装：MS-16
库存状态：有库存
库存量：2000
最低订购量：1
详细资料：

Product Introduction

LT3799

Offline-isolated flyback LED driver with active PFC function

peculiarity

具极少外部组件的隔离型 PFC LED drive
可采用 TRIAC 进行调光
V_IN 和 V_OUT 仅受限于外部组件
有源功率因数校正 (典型 PFC > 0.97)
低谐波成分
无需光耦合器
准确的已调 LED 电流 (典型value为 ±5%)
开路 LED 和短路 LED 保护
耐热性能增强型 16 引脚 MSOP 封装
description

LT^®3799 是一款具功率因数校正功能的隔离型反激式controller，专为驱动 LED 而设计。该控制器采用临界导通模式，因而允许使用一个小的变压器。这款控制器运用一种新颖的电流检测方案，能够向副端输送经过良好调节的电流，而无需采用一个光耦合器。此器件内置了一个强大的栅极驱动器，用于驱动一个外部高电压 MOSFET。LT3799 采用了一个Built乘法器，通常可实现 0.97 的功率因数。FAULT 引脚负责告知开路和短路 LED 情况。

The LT3799 uses micropower hysteresis start for efficient operation with an offline input voltage and a third winding to power the device. An internal LDO is responsible for providing well-regulated power to the device's internal circuitry and gate driver.

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离线 4W 至 100W+ LED 应用
高 DC V_IN LED 应用

The ICs associated with the LT3799 include:

Model	Manufacturers	lot number	encapsulation	illustrate
LTC3799-1	LT	11+	MS-16	Offline isolated flyback LED controller with active PFC function
LT3799	LT	11+	MS-16	Offline-isolated flyback LED driver with active PFC function
2SK3799	Toshiba	05+	TO-220F	N／A
K379981	MRT	07+/08+	QFP

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LT3799

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The ICs associated with the LT3799 include:

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