Document 1230 Flyback Transformer For Texas Instruments TPS23753A PoE controller • Flyback transformer for 10 W PoE applications • Developed to work with TI TPS23753A PoE controller • 1500 Vrms isolation (hipot), one minute from primary and bias to secondary and sync Core material Ferrite Terminations RoHS tin-silver (96.5/3.5) over tin over nickel over phos bronze. Weight 6.2 g Ambient temperature –40°C to +85°C Maximum part temperature +125°C (ambient + temp rise) Storage temperature Component: –40°C to +125°C. Tape and reel packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging 175 per 13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 28 mm pocket spacing, 12.93 mm pocket depth PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. 4 Leakage DCR max (Ohms) inductance Capacitance6 Turns ratio7 Part L at 0A2 L at Ipk3 1 5 number ±7% (µH) min (µH) pri sec bias sync max (µH) max (pF) pri : sec : bias : sync PA6340-AL_ 133.0 123.7 0.3300.0135 0.230 0.190 1. When ordering, please specify packaging code: PA6340-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 1 kHz, 0.5 Vrms, 0 Adc. 3. Peak primary current (1.1 A) drawn at minimum input voltage. 0.028 0,70 0.512 13,00 1 Dot indicates pin1 XXXX X 0.530 max 13,46 6 1 : 0.167 : 0.361 : 0.167 5.0 V, 2.0 A 70 4. DCR for the primary is from pin 1 to pin 2. 5. Leakage inductance measured between pins 1 and 2 with all other windings shorted. 6. Capacitance is measured from pins 1,2 to pins 6,10 at 250 kHz, 0.5 Vrms. 7. Turns ratio is with the primary windings connected in series. 8. Output 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. 9. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 0.590 14,99 0.050 1,27 W1B 0.098 2,50 7 Sec 10 1 0.098 2,50 1 5 Sync W5 W1A Recommended Land Pattern 10 6 2 Pri PA6340-AL 5 0.080 2,03 1.50 Output8 Internal code 3 Bias W3 4 0.500 max 12,70 0.039 1,00 0.004 /0,10 0.699 max 17,75 Dimensions are in inches mm Document 1230 Revised 05/16/15