Document 1134 Flyback Transformer For STMicroelectronics STEVAL-ILL055V1 • Developed for STMicroelectronics STEVAL-ILL055V1 offline LED drive • Input voltage: 185 – 264 Vac • 1500 Vrms, one minute isolation from the primary and aux windings to the secondary winding Core material Ferrite Terminations RoHS tin-silver 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. Leakage Inductance 3 Turns ratio 4 Part Power at 0 A2 DCR max (Ohms) inductance 1 5 number (W) ±10% (mH) pri sec aux max (µH) pri : sec pri : aux Output PA6284-AL_ 11 1.40 3.030.085 0.57 25 1 : 0.1361 : 0.144 12 – 18 V, 0.64 A 1. When ordering, please specify packaging code: PA6284-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 measured at 100 kHz, 1.0 Vrms, 0 Adc. 3. DCR for the secondary is with windings connected in parallel. 4. Leakage inductance is for the primary and is measured with the secondary shorted. 5. Output is of the secondary winding. Aux winding output is 20 V, 10 mA. 6. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 5 Primary 3 6 Secondary 0.080 2,03 0.590 14,99 0.500 max 12,70 0.004 /0,10 0.039 1,00 0.699 max 17,75 0.050 1,27 0.512 13,00 1 10 Recommended Land Pattern 2 Aux Dot above pin1 1 Dimensions are in 0.028 0,70 0.530 max 13,46 0.098 2,50 1 10 5 inches mm These parts are preproduction products for electrical evaluation only. Specification subject to change without notice. 6 0.098 2,50 Document 1134 Revised 09/16/14