TEA1762T: Synchronous rectification controller with integrated feedback and protection

Overview

The TEA1762T is a member of the new generation of Synchronous Rectifier (SR) controller ICs for switched mode power supplies. Its high level of integration allows the design of a cost-effective power supply with a very low number of external components. The TEA1762T is a controller IC dedicated for synchronous rectification on the secondary side of discontinuous conduction mode and quasi resonant flyback converters. Besides electronics for synchronous rectification, it also has integrated circuitry for output voltage and output current regulation. The TEA1762T is fabricated in a Silicon On Insulator (SOI) process. This NXP SOI process makes possible a wide range of operation.

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Features

Combined synchronous rectification and primary feedback control functionality
Wide supply voltage range (8.6 V to 38 V)
High level of integration, resulting in a very low external component count
Wide opto coupler output voltage range (3.5 V to 38 V)
Accurate internal voltage reference for voltage control (within 1 %)
Separate sense ground for accurate voltage sensing
High driver output voltage of 10 V to drive all MOSFET brands to the lowest RDSon
Reference voltage output pin
Low current consumption
High system efficiency from no load to full load
Undervoltage protection
General purpose protection input pin
Internal over-temperature protection

Target Applications

Intended for adapters and other discontinuous conduction mode systems

MoreLess

Features

Combined synchronous rectification and primary feedback control functionality
Wide supply voltage range (8.6 V to 38 V)
High level of integration, resulting in a very low external component count
Wide opto coupler output voltage range (3.5 V to 38 V)
Accurate internal voltage reference for voltage control (within 1 %)
Separate sense ground for accurate voltage sensing
High driver output voltage of 10 V to drive all MOSFET brands to the lowest RDSon
Reference voltage output pin
Low current consumption
High system efficiency from no load to full load
Undervoltage protection
General purpose protection input pin
Internal over-temperature protection

Target Applications

Intended for adapters and other discontinuous conduction mode systems

Data Sheets

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SO14 Package

TEA1762T Block Diagram

SO14 Package
TEA1762T Block Diagram

SO14 Package

TEA1762T Block Diagram

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