LT3799
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LT3799

  • Category:LED driver
  • Product Name:Offline isolated flyback LED driver with active PFC
  • Manufacturers:LT
  • Production Batch Number:11+
  • Encapsulation:MS-16
  • Stock Status:There is stock
  • Stock Quantity:2000
  • Minimum order quantity: 1
  • Details:点击查找LT3799的pdf资料
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  • Product introduction

LT3799

Offline isolated flyback LED driver with active PFC

 

peculiarity

  • 具极少外部组件的隔离型 PFC LEDdrive
  • 可采用 TRIAC 进行调光
  • VINand VOUTLimited only by external components
  • Active power factor correction (typical PFC > 0.97)
  • Low harmonic composition
  • No optocoupler is required
  • 准确的已调 LED 电流 (典型value为 ±5%)
  • Open and short LED protection
  • Thermally enhanced 16-pin MSOP package
  • 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。

    LT3799 运用微功率迟滞启动,以在采用离线输入电压时实现高效运作,并利用第三个绕组来为器件供电。一个内部 LDO 负责为器件的内部电路和栅极驱动器提供经过良好调节的电源。

    apply

  • Offline 4W to 100W+ LED applications
  • High DC VINLED applications

andLT3799Related ICs are:


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

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