MAXREFDES1040, 59.4W, No-Opto Flyback DC-DC Converter Reference Design

Reference Design using part MAX17690ATE+ by Analog Devices

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MAXREFDES1040 Image
MAXREFDES1040 Schematic
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Manufacturer

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

For End Products

  • Switching Power Supply

Description

  • MAXREFDES1040, Reference Design for the MAX17690 is a peak current mode, fixed-frequency switching controller specifically designed for the isolated flyback topology operating in Discontinuous Conduction Mode (DCM). The device senses the isolated output voltage directly from the primary-side flyback waveform during the off-time of the primary switch. No auxiliary winding or optocoupler is required for output voltage regulation. The MAX17690 is designed to operate over a wide supply range from 4.5V to 60V. The switching frequency is programmable from 50kHz to 250kHz. The MAX17690 provides an input overvoltage protection through the OVI pin. The 7V internal LDO output of the MAX17690 makes it suitable for switching both logic-level and standard MOSFETs used in flyback converters

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    18 to 60 V
  • Output Voltage
    54 V
  • Output Current
    1.1 A
  • Output Power
    59.4 W
  • Efficiency
    91 %
  • Topology
    Flyback

Featured Parts (2)

Featured Parts
Part Number Manufacturer Type Description
MAX17690ATE+ Analog Devices DC to DC Controllers DC/DC Cntrlr Single-OUT Flyback 250kHz 16-Pin TQFN EP Tray Buy
MAX17690ATE+T Analog Devices DC to DC Controllers DC/DC Cntrlr Single-OUT Flyback 250kHz 16-Pin TQFN EP T/R Buy

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