LTC3705 - 2-Switch Forward Controller and Gate Driver

Alternatively, the LTC3705 can be used as a standalone voltage mode controller in a primary-side control architecture with optoisolator feedback. Voltage feedforward provides excellent line regulation and transient response.

特点
  • High-Speed Top and Bottom Gate Drivers for
  • 2-Switch Forward Converter
  • On-Chip Rectifier and Self-Starting Architecture
  • Eliminate Need for Separate Gate Drive Bias Supply
  • Wide Input Voltage Supply Range: 18V to 80V
  • Tolerant of 100V Input Voltage Transients
  • Linear Regulator Controller for Fast Start-Up
  • Precision UVLO with Adjustable Hysteresis
  • Overcurrent Protection
  • Volt-Second Limit Prevents Transformer Core Saturation
  • Voltage Feedforward for Fast Transient Response
  • Available in 16-Lead Narrow SSOP Package
典型应用
LTC3705 Typical Application
应用
  • Isolated 48V Telecommunication Systems
  • Internet Servers and Routers
  • Distributed Power Step-Down Converters
  • Automotive and Heavy Equipment
封装信息
LTC3705 Package Drawing
Order Information 订购型号
器件型号封装温度价格 (以 1 ~ 99 片为批量)价格 (以 1000 片为批量) *
LTC3705EGN#PBFSSOP-16E$3.76$2.63
LTC3705EGN#TRPBFSSOP-16E$2.69
LTC3705IGN#PBFSSOP-16I$4.03$2.89
LTC3705IGN#TRPBFSSOP-16I$2.95
演示电路板
器件型号描述价格
DC776ALTC3705EGN/LTC3706EGN Demo Board | Forward Converter with Secondary Side Control, 36V ≤ VIN ≤72V, Vout = 1.5V @ 45A$225.00
数据表
设计要点
可靠性数据
LT Journal
产品新闻发布
CAD 符号
相关产品
LTC3705 - 2-Switch Forward Controller and Gate Driver
DN377 - Isolated Converters Have Buck Simplicity and Performance
R419 Reliability Data
Mar 2007 - Isolated Forward Controllers Offer Buck Simplicity and Performance
一个具降压电路简单性的隔离 DC/DC 解决方案
LTC3705 Footprints and Symbols