TEA1795T: Dual synchronous rectification controller suitable for both high-side and low-side control

Overview

The TEA1795T is a member of the new generation of Synchronous Rectifier (SR) controller ICs for switched mode power supplies. Its high level of integration enables the design of a cost-effective power supply with a minimum number of external components. The TEA1795T 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 central tap secondary transformer windings. The two gate driver stages have their own sensing inputs and operate independently of each other. The TEA1795T is fabricated in a Silicon On Insulator (SOI) process.

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Features

Accurate synchronous rectification functionality
Wide supply voltage range (8.5 V to 38 V)
Separate sense inputs for sensing the drain and source voltage of each SR MOSFET
High level of integration, resulting in a minimum external component count
High driver output voltage of 10 V to drive all MOSFET brands to the lowest RDSon
Low current consumption
High system efficiency from no load to full load
UnderVoltage Protection (UVP)

Target Applications

Intended for adapters and other discontinuous conduction mode systems

MoreLess

Features

Accurate synchronous rectification functionality
Wide supply voltage range (8.5 V to 38 V)
Separate sense inputs for sensing the drain and source voltage of each SR MOSFET
High level of integration, resulting in a minimum external component count
High driver output voltage of 10 V to drive all MOSFET brands to the lowest RDSon
Low current consumption
High system efficiency from no load to full load
UnderVoltage Protection (UVP)

Target Applications

Intended for adapters and other discontinuous conduction mode systems

Data Sheets

Application Notes

S08 Package

TEA1795T Block Diagram

S08 Package
TEA1795T Block Diagram

S08 Package

TEA1795T Block Diagram

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