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Skyworks Solutions Inc. Si3406 Isolated Flyback Evaluation Boards

Skyworks Solutions Inc. Si3406 Isolated Flyback Evaluation Boards provide simple and low-cost solutions with different output voltages and power levels. These evaluation boards are reference designs for a power supply in a Power over Ethernet (PoE) Powered Device (PD) application. The Si3406 IC integrates IEEE 802.3 at a compatible PoE interface and the current control-based dc/dc converter. This Si3406 PD integrates a classification circuit, internal rectifier bridge, detection circuit, TVS overvoltage protection, hot swap switch, and dynamic soft-start circuit. The Si3406 evaluation boards feature high efficiency, high integration, low BOM cost, and an integrated diode bridge. These evaluation boards operate at 37V to 57V input voltage range.

Features

  • IEEE 802.3at compliant
  • Very small application PCB surface
  • High efficiency
  • High integration
  • Low-profile 4mm x 4mm 20-pin QFN
  • Integrated diode bridge
  • Integrated thermal shutdown protection
  • Low BOM cost
  • Automatic and user mode MPS generation
  • Integrated transient overvoltage protection

Specifications

  • SI3406FB3V2-KIT:
    • 3.3V output voltage
    • 1.5A output current
    • 177kHz (110kΩ) switching frequency
  • SI3406FB5V2-KIT:
    • 5V output voltage
    • 1.05A output current
    • 150 kHz (130 kΩ) switching frequency
  • SI3406FB12V2-KIT:
    • 12V output voltage
    •  0.45A output current
    • 123kHz (160kΩ) switching frequency
  • 37V to 57V input voltage range
Published: 2023-05-29 | Updated: 2023-06-14