TEA176x | Synchronous Rectification Controller with Integrated Feedback and Protection | NXP Semiconductors

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Synchronous Rectification Controller with Integrated Feedback and Protection

TEA176X Active

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The TEA1761T/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 TEA1761T/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 TEA1761T/TEA1762T is fabricated in a Silicon On Insulator (SOI) process. This NXP SOI process makes possible a wide range of operation.

Block Diagram

TEA1761T / TEA1762T

TEA1761T Block Diagram
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Features

Key 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

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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Documentation

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9 documents

Compact List

Application Note (1)
Data Sheet (2)
Package Information (2)
Packing Information (1)
Supporting Information (3)

Design Files

Hardware

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2 hardware offerings

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