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
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 |
1 : 0.14 | 1 : 0.21 | 1 : 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. | ||