ADI LTC3705EGN#PBF

隔离18V ~ 80V

Overview

The LTC3705EGN is a controller for a 2-switch forward converter and includes on-chip bottom and top gate drivers that do not require external transformers. For secondary-side control, combine the LTC3705EGN 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 LTC3705EGN 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.

Features

Isolated Output Isolation
Packaged with 16-SSOP (0.154, 3.90mm Width)
With 16 pins
With 1 channels on it

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LTC3705EGN#PBF AC DC Converters applications.

• Adaptors for DSCs
• Set-top boxes
• DVD players
• Records
• Linear Adapter Replacements
• Chargers for cell/cordless phones
• PDAs
• MP3
• Portable audio
• Adapters