Document 549 PoE Transformer For National Semiconductor LM5071 & LM5072 PD Controllers The FA2519-AL surface mount flyback transformer was developed specifically for National Semiconductor LM5071 and LM5072 Powered Devices Controllers in 13 Watt Power over Ethernet (PoE) applications.
It is designed to operate at 250 kHz with a PoE input voltage of 36 – 72 Volts.
It can also accept a 12 V input from auxiliary sources.
Output with the secondary windings connected in parallel, is 3.
3 V, 3.
3 A.
Output of the auxiliary winding is 10 V, 20 mA.
Coilcraft can also design custom transformers with voltage, inductance and DCR values to meet your specific requirements.
For free evaluation samples, con...

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