Document 1110 Flyback Transformer For TI TPS55340 DC-DC Regulator * Developed for Texas Instruments TPS55340 Boost/SEPIC/Flyback DC-DC Regulator * Designed to operate at 200 kHz with 2.9 - 32 Volts input * 1500 Vrms, one minute isolation from primary windings to secondary windings Core material Ferrite Terminations RoHS tin-silver over tin over nickel over phos bronze. Other terminations available at additional cost. Weight 6.5 g Ambient temperature -40C to +85C Storage temperature Component: -40C to +85C. Tape and reel packaging: -40C to +80C Resistance to soldering heat Max three 40 second reflows at +260C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C / 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 with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf Inductance Part Power at 0 A2 number1 (W) 10% (H) NA5889-AL_ 12 Inductance at Ipk3 min (H) 12 10.8 DCR max (Ohms)4 pri sec 0.03 Leakage inductance5 Turns ratio6 Ipk3 max (H) pri : sec (A) 0.0195 1 : 0.833 0.140 Output7 5.5 12 V, 1 A 1. When ordering, please specify packaging code: NA5889-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 200 kHz, 1.0 Vrms, 0 Adc. 3. Peak primary current drawn at minimum input voltage. 4. DCR for the primary and for the secondary is with windings connected in parallel. 5. Leakage inductance is for the primary and is measured with the secondary shorted. 6. Turns ratio is with the primary and the secondary windings connected in parallel. 7. Output of the secondary is with the windings connected in parallel. 8. Electrical specifications at 25C. Refer to Doc 362 "Soldering Surface Mount Components" before soldering. 1 2 10 9 Pri Sec 5 4 6 7 Primary windings and secondary windings to be connected in parallel on PC board 0.080 2,03 0.590 14,99 Dot above pin1 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 10 1 Recommended Land Pattern 1 0.028 0,70 0.530 max 13,46 0.098 2,50 5 6 inches Dimensions are in mm These are preproduction products for electrical evaluation only. USparts +1-847-639-6400 sales@coilcraft.com Specification subject to change without notice. UK +44-1236-730595 sales@coilcraft-europe.com Taiwan +886-2-2264 3646 sales@coilcraft.com.tw China +86-21-6218 8074 sales@coilcraft.com.cn Singapore + 65-6484 8412 sales@coilcraft.com.sg Document 1110 0.098 2,50 Revised 03/10/14 (c) Coilcraft Inc. 2014 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.