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5V/4A, Synchronous Flyback Converter, Power over Ethernet (PoE), IEEE 802.3 Compliant Reference Design

STEVAL-TSP004V2

Overview

The STEVAL-TSP004V2 is a reference design for a PoE+, high-efficiency, 5 V/4 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-TSP004V2 reference design is based on an isolated flyback CCM converter featuring synchronous rectification with gate driver transformer.

Main 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 to 60 V_DC
Output voltage: 5 V_DC ± 5%
Output current: 4 A
Peak-to-peak output ripple:

Efficiency DC-DC full-load: > 92%
Overall peak efficiency: > 89%
Transient response ΔV_OUTPK-PK to 50% load step:
ΔV in load line case:
RoHs compliant

Design Files

Related Devices

Devices	Class	introduce	Datasheet
PM8803	Power/power management;The power supply circuit	Hot Swap Voltage Controllers PoE PD Int ctrl 100V 0.45 Ohm IEEE 802.3	Download

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Update:2024-11-22 04:29:17

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