STEVAL-TSP003V2

Power over Ethernet - PD converter with 12 V 1 A output, standard IEEE 802.3af compliant
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This document focuses on a reference design for a simple, low cost 12 V 1 A flyback converter based on the PM8800A device.

The PM8800A is a highly integrated device embedding an IEEE 802.3af compliant “Powered Device” (PD) interface together with a PWM controller.

It can be successfully used in all low power, low cost PoE applications.

Key features
IEEE 802.3af 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: 12 Vdc ± 5% Output current: 1 A Peak-to-peak output ripple: 100 mV Efficiency DC-DC full-load: > 88% Efficiency overall peak: > 85% Transient response ΔVout_pk-pkto 50% load step: < 200 mVpp ΔV in load line case: < 0.5%