• 简体中文
• English

LTC3725 - Single-Switch Forward Controller and Gate Driver

For secondary-side control, combine the LTC3725 with the LTC3706 PolyPhase® secondary-side synchronous forward controller to create a complete forward converter using a minimum of discrete parts. A proprietary scheme is used to multiplex gate drive signals across the isolation barrier through a tiny pulse transformer. The on-chip rectifier and the same pulse transformer provide gate drive bias power.

Alternatively, the LTC3725 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 Gate Driver for Forward Converter On-Chip Rectifier and Self-Starting Architecture Eliminates Need for Separate Gate Drive Bias Supply Wide Input Voltage Supply Range: 9V and Up 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 10-Lead MSOP Package 典型应用

应用 Isolated 48V Telecommunication Systems Internet Servers and Routers Distributed Power Step-Down Converters Automotive and Heavy Equipment 封装信息

演示电路板