TEA1995T | GreenChip Dual Synchronous Rectifier Controller

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The TEA1995T is the first product of a new generation of synchronous rectifier (SR) controller ICs for switched mode power supplies with adaptive gate drives, providing maximum efficiency at any load.

The TEA1995T is a dedicated controller IC for synchronous rectification on the secondary side of resonant converters. This synchronous rectifier controller has a vast supply voltage range (4.5-38V) and comes equipped with two driver stages for the SR MOSFETs, which rectify the outputs of the secondary transformer windings. The two gate driver stages also have their own sensing inputs and operate independently of each other.

The TEA1995T is intended for resonant power supplies. In such applications, this SR controller can drive two external synchronous rectifier MOSFETs that replace diodes for the rectification of the voltages on the two secondary windings of the transformer.

Fabricated in a Silicon On Insulator (SOI) process, the TEA1995T can be used in all power supplies needing high-efficiency, including the power supplies for PCs, adapters, TVs, and servers. Additionally, consumers can use the TEA1995T in multi-output flyback converters with the SR MOSFET placed at the low side.

Product Details

Block Diagram

TEA1995T Block Diagram

Get diagram PDF

Features

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 the conduction
Under voltage lockout with active gate pull-down

NXP GreenChip

This product is part of the NXP GreenChip portfolio, this program optimizes for energy efficiency in mobile and computing applications, specializing in high-power density, safety and reliability.

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Design Resources

Hardware

Quick reference to our board types.

5 hardware offerings

Evaluation and Development Boards
240 W Computing Power Supply

TEA1916DB1262
Evaluation and Development Boards
TEA1995 Add-On Board

TEA1995DB1295
Evaluation and Development Boards
240 W Demo Board

TEA2016DB1519
Additional hardware available. View our featured partner solutions.
Evaluation and Development Boards
TEA1995 Add-On Board

TEA1995DB1294
Evaluation and Development Boards
PFC + LLC Resonant Power Supply Development Kit

RDK01DB1562

Software

Quick reference to our software types.

1 software file

Application Example Software
LLC Resonant Converter Design Tool

Download Options

Note: For better experience, software downloads are recommended on desktop.

GreenChip Dual Synchronous Rectifier (SR) Controller