DN05126/D, High-Efficiency QR Flyback Adapter with USB-PD/Type-C Output Utilizing NCP1342

Reference Design using part NCP1342AMDCCDR2G by onsemi

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DN05126/D Schematic
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Manufacturer

onsemi
  • Application Category
    Power Supplies
  • Product Type
    AC to DC Multi-Output Power Supplies

For End Products

  • PAD Adaptor

Description

  • DN05126/D, Reference design for the NCP1342 is a highly-integrated quasi-resonant flyback controller suitable for designing high-performance off-line power converters. With an integrated active X2 capacitor discharge feature, the NCP1342 enables no-load power consumption below 70 mW. The quasi-resonant operating mode features a proprietary valley-lockout circuitry ensuring stable valley switching down the 6th valley. After the 6th valley the controller transitions to a frequency foldback mode to reduce switching losses in lighter load conditions. Secondary side synchronous rectification (SR) is implemented with the NCP43080 for optimized efficiency across all operating modes. The NCP43080 features precise zero current turn off and 12 ns turn-off delay from current sense to the driver allowing for the optimal SR conduction period in quasi-resonant mode

Key Features

  • Conversion Type
    AC to DC
  • Input Voltage
    90 to 265 (AC) V
  • Output Voltage
    5|9|15|20 V
  • Output Current
    3 A
  • Output Power
    60 W
  • Topology
    Flyback- Quasi Resonant

Featured Parts (2)

Featured Parts
Part Number Manufacturer Type Description
NCP43080DMNTWG onsemi AC to DC Switching Converters Self-Supplied Monolithic AC to DC Switch Buy
NCP1342AMDCCDR2G onsemi AC to DC Switching Converters AC to DC Switching Converter Flyback T/R 8-Pin SOIC N Buy

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