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Flyback Transformer for
Texas Instruments TPS23753A

  • Developed for TI TPS23753A PoE PD controller (PMP8896 and PMP9175 reference designs)
  • 36 – 57 V input
  • 10 V, 20 mA bias winding output; 5 V, 10 mA sync winding output
  • 1500 Vrms, one minute isolation from the primary and bias windings to the secondary
  • RoHS-compliant  260°C compatible. Tin-silver (96.5/3.5) over tin over nickel over phos bronze terminations

SPECIFICATIONS


Part number1
Click to get parts
L at 0 A2
±10% (µH)
L at Ipk3
±10% (µH)
DCR max4
(Ohms)
Leakage
L max5
(µH)
Turns ratio6 Ipk3
(A)
Output7
NA6223-AL_ 180 162 0.330 (pri)
0.0135 (sec)
0.190 (sync)
1.230 (bias)
1.2 pri : sec
pri : sync
pri : bias
: 0.167
: 0.167
: 0.361
1.1 5.0 V, 2 A
1 When ordering, please specify packaging code: e.g. NA6223-ALD
  Packaging: D = 13" machine-ready reel
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 100 kHz, 0.1 Vrms, 0 Adc
3 Ipk is the peak primary current drawn at minimum input voltage.
4 DCR for the primary is from pin 1 to pin 2, measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
5 Leakage inductance if for the primary and is measured with all other windings shorted.
6 Turns ratio is with the primary windings connected in series.
7 Output for the secondary is between pins 7 and 10. Bias winding output is 10 V, 20 mA. Sync winding output is a 5 V Sync FET gate drive signal.
8 Ambient temperature range: −40°C to +85°C
9 Storage temperature range: Component: −40°C to +85°C
Tape and reel packaging: −40°C to +80°C
10 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.
11 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 12, 2017