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NXP产品 - TEA1995T介绍

TEA1995T - GreenChip Synchronous Rectifier controller

TEA1995T是NXP恩智浦公司的一款次级侧控制器产品，TEA1995T是GreenChip Synchronous Rectifier controller，本站介绍了TEA1995T的封装应用图解、特点和优点、功能等，并给出了与TEA1995T相关的NXP元器件型号供参考。

TEA1995T - GreenChip Synchronous Rectifier controller - 次级侧控制器 - AC/DC转换器 - 恩智浦

产品描述

The TEA1995T is the first product of a new generation of Synchronous Rectifier (SR) controller ICs for switched mode power supplies with adaptive gate drive for maximum efficiency at any load.

The TEA1995T is a dedicated controller IC for synchronous rectification on the secondary side of resonant converters. It has two driver stages for driving the SR MOSFETs which are rectifying the outputs of the secondary transformer windings. The two gate driver stages have their own sensing inputs and operate independently of each other.

The TEA1995T can also be used in multi-output flyback converters with the SR MOSFET placed at the low side.

The TEA1995T is fabricated in a Silicon On Insulator (SOI) process.

产品特性和优势
Efficiency features:
  • Adaptive gate drive for maximum efficiency at any load
  • Supply current in no-load operation below 200 μA
Application features:
  • Very wide supply voltage range from 4.5 V to 38 V
  • Dual Synchronous Rectification for LLC resonant in SO8 package
  • Synchronous Rectification for multi-output flyback converters
  • Supports 5V operation with logic level SR MOSFETS
  • Differential inputs for sensing the drain and source voltage of each SR MOSFET
Control features:
  • SR control without minimum on-time
  • Adaptive gate drive for fast turn-off at the end of conduction
  • Under voltage lock out with active gate pull-down
产品应用
The TEA1995T is intended for resonant power supplies. In such applications, it can drive two external Synchronous Rectifier MOSFETs which replace diodes for the rectification of the voltages on the two secondary windings of the transformer. It can be used in all power supplies needing high efficiency, like:
  • Adapters
  • Power supplies for desktop PC and all-in-one PC
  • Power supplies for television
  • Power supplies for servers
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