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SMT PoE Transformer
for TI LM5071 and LM5072

  • Developed for Texas Instruments LM5071 and LM5072 PD Controllers
  • Designed to operate with an input voltage of 36 – 72 V
  • Can accept 12 V input from auxiliary sources.
  • 1500 Vrms, one minuteisolation from primary to secondary
  • Coilcraft's DA2257-AL and DA2383-AL are also specified by TI  for LM5071 & LM5072
  • The FA2677-AL is specified by TI  for LM5072
  • RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations

SPECIFICATIONS


Part number1
Click to get parts
L at 0 A2
±10% (µH)
L at Ipk3
min (µH)
DCR max4
(Ohms)
Leakage
L max5
(µH)
Turns ratio Ipk2
(A)  
Outputs6
FA2519-AL_ 55.0 40.2 0.0026  (sec) 0.37 1 : 0.2  (pri : sec) 2.4 3.3 V, 3.3 A (sec)
      0.388  (aux)   1 : 0.6  (pri : aux)   10 V, 20 mA (aux)
      0.026  (pri)          
1 When ordering, please specify packaging code: e.g. FA2519-ALD
Packaging: D = 13" reel, machine-ready 
EIA-481 embossed plastic tape (175 parts per full reel).
B = Less than full reel
In tape, but not machine-ready. To have a leader and trailer added ($25 charge), use code letter D instead.
2 Inductance is for the primary, measured at 200 kHz, 0.2 Vrms, 0 Adc
3 Ipk is peak primary current drawn at minimum input voltage.
4 DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
5 Leakage inductance measured on the primary windings with all secondary pins shorted.
6 Output for the secondary is with the windings connected in parallel.
7 Ambient temperature range: −40°C to +125°C
8 Storage temperature range: Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
9 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
10 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info

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Updated: April 11, 2017