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LT3799
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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：点击查找LT3799的pdf资料
  • 点击询价
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  • 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
  • VIN 和 VOUT 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.

    apply

  • 离线 4W 至 100W+ LED 应用
  • 高 DC VIN 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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