ADI LT1249IS8#TRPBF

平均电流100kHz

Overview

The 8-pin LT1249IS8 provides active power factor correction for universal offline power systems with very few external parts. By using fixed high frequency PWM current averaging without the need for slope compensation, the LT1249IS8 achieves far lower line current distortion, with a smaller magnetic element than systems that use either peak current detection or zero current switching approach, in both continuous and discontinuous modes of operation.

While the LT1249IS8 simplifies PFC design with minimal parts count, the LT1248 provides flexibilities in switching frequency, overvoltage and current limit.

Features

Tape & Reel (TR) Package

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LT1249IS8#TRPBF PFC PMICs applications.

• CPU power supply
• Switching regulator
• Multiple-power supply system
• Digital audio player
• Digital TV
• Smartcard
• Industrial equipment
• DVD and CD-ROM drive
• Quick charge protocols
• Measurement and control euipment