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Flyback Transformer for TI TPS23753
PoE Interface and Converter Controller

  • Developed for Texas Instruments TPS23753A IEEE802.3 PoE Interface and Converter Controller
  • Shown on TI PMP9068 Class 1 Isolated Synchronous Flyback Converter for PoE PD Application Reference Design
  • 36 – 72 V input; 3.3 V, 0.9 A output
  • 250 kHz switching frequency
  • 1500 Vrms, one minute isolation, primary and bias to secondary and drive
  • 12 V 20 mA bias winding output
  • RoHS-compliant. 260°C compatible. Tin-silver-copper over tin over nickel over phos bronze terminations

     Pricing    PDF data sheet 


SPECIFICATIONS

Schematic   Dimensions     Tape and reel 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 ratio6 Ipk3
(A)
Output6
pri : sec pri : drive pri : bias
PA6595-AL_ 310 279 Pri:
Sec:
 Drive:
Bias
1.14
0.025
0.282
1.58
Pri:
 Drive:
4.10
0.20
: 0.14 : 0.21 : 0.465 0.3 3.3 V, 9 A
1 When ordering, please specify packaging code: e.g. PA6595-ALD
Packaging: D = 13" machine-ready reel
EIA 481 embossed plastic tape (350 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 tested at 250 kHz, 0.1 Vrms, 0 Adc
3 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 for the primary is with the secondary and drive windings shorted; leakage inductance for the drive winding is with the secondary windings shorted. .
6 Output is of the secondary winding. Output of the bias winding is 12 V, 20 mA.
7 Ambient temperature range: −40°C to +125°C
8 Storage temperature range: Component: −40°C to +135°C
Packaging: −40°C to +80°C
9 Maximum part temperature: 135°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: October 30, 2017