GreenChip Synchronous Rectifier Controller

TEA1892

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The TEA1892ATS 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 TEA1892ATS is a controller IC dedicated to synchronous rectification on the secondary side of discontinuous conduction mode and quasi-resonant flyback converters.

The TEA1892ATS is fabricated in a Silicon-On-Insulator (SOI) process.

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Block Diagram

TEA1892 Block Diagram

TEA1892 Block Diagram
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Features

  • Accurate synchronous rectification functionality
  • Wide supply voltage range (8.5 V to 38 V)
  • High level of integration, resulting in a very low external component count
  • High driver output voltage of 10 V to drive all MOSFET brands to the lowest RDSon
  • Selectable regulation level for driver stage
  • Low current consumption
  • High system efficiency from no-load to full load
  • UnderVoltage Protection (UVP)

Target Applications

  • The TEA1892ATS is intended for adapters. The device can also be used in all other discontinuous conduction mode systems and quasi-resonant flyback systems that demand a highly efficient and cost-effective solution.

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