MAXREFDES1106, Miniature, 12V/1A, Synchronous No-Opto Flyback DC-DC Converter with 92% Efficiency Using MAX17690 and MAX17606

Reference Design using part MAX17690ATE+ by Analog Devices

Manufacturer

Analog Devices
  • Application Category
    Power Supplies
  • Product Type
    DC to DC Single Output Power Supplies

For End Products

  • Power Conversion

Description

  • MAXREFDES1106, Due to its simplicity and low cost, the flyback converter is the preferred choice for low-to-medium isolated DC-DC power-conversion applications. However, the use of an optocoupler or an auxiliary winding on the flyback transformer for voltage feedback across the isolation barrier increases the number of components and design complexity. The MAX17690 eliminates the need for an optocoupler or auxiliary transformer winding and achieves ±5% output voltage regulation over line, load, and temperature variations. The MAX17690 implements an innovative algorithm to accurately determine the output voltage by sensing the reflected voltage across the primary winding during the flyback time interval

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    8 to 28 V
  • Output Voltage
    12 V
  • Output Current
    1 A
  • Output Power
    12 W
  • Efficiency
    92 %
  • Topology
    Flyback

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