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3.3 V/6 A, synchronous flyback converter, Power Over Ethernet (PoE) - IEEE 802.3at compliant reference design

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1 - 2$149.450%
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Parameter NameParameter Value
Target ApplicationCommunications and Networking
Core ProductPM8803
Packing TypeNot Applicable
RoHs compliantEcopack2
Package NameCARD

The STEVAL-TSP009V2 is a reference design for a PoE+, high-efficiency, 3.3 V - 6 A flyback converter based on the PM8803 PoE controller.

The PM8803 is a highly integrated device embedding an IEEE802.3at-compliant powered device (PD) interface together with a PWM controller and support for auxiliary sources.

The STEVAL-TSP009V2 reference design is based on an isolated flyback CCM converter featuring synchronous rectification with gate driver transformer.

Key features
  • IEEE 802.3at compliant PD interface
  • Works with power supplied from Ethernet LAN cables or from local auxiliary sources
  • Line input voltage range: 40 VDC to 60 VDC
  • Output voltage: 3.35 VDC ± 5%
  • Output current: 6 A
  • Peak-to-peak output ripple: < 25 mV
  • Efficiency DC-DC full-load: > 90%
  • Overall peak efficiency: > 87%
  • Transient response ΔVOUTPK-PK to 50% load step: < 250 mV
  • ΔV in load line case: < 0.5%
  • RoHs compliant