flyback transformer document 1295 document 1295 revised 08/07/15 inductance inductance leakage part at 0 adc 1 at i pk 2 dcr max inductance 3 turns ratio i pk 2 number 15% (h) min (h) (ohms) max (h) pri : sec pri : aux (a) output 4 na6264-al 2.56 2.176 0.0065 (pins 1 C 3) 0.060 1 : 6 1 : 1.5 16.5 48 v, 1 a 0.0065 (pins 2 C 4) 0.130 (pins 5 C 6) 0.110 (pins 11-8) 1. inductance is for the primary with windings connected in parallel, measured at 300 khz, 0.3 vrms. 2. peak primary current drawn at minimum input voltage. 3. leakage inductance is for the primary with the windings connected in parallel and with the secondary winding shorted. 4. output is for the secondary. aux winding output is 9 v, 20 ma. 5. electrical specifcations at 25c. refer to doc 362 soldering surface mount components before soldering. for texas instruments pmp7899 reference design core material ferrite terminations rohs tin-silver (96.5/3.5) over tin over nickel over phos bronze. other terminations available at additional cost. weight 25.9 g ambient temperature C40c to +125c maximum part temperature +125c (ambient + temp rise) storage temperature component: C40c to +125c. tray packaging: C40c to +80c resistance to soldering heat max three 40 second refows at +260c, parts cooled to room temperature between cycles moisture sensitivity level (msl) 1 (unlimited foor 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 24 parts per tray pcb washing tested to mil-std-202 method 215 plus an additional aqueous wash. see doc787_pcb_washing.pdf . ? developed for texas instruments pmp7899 reference design for non-synchronous flyback converter with an isolated output ? 8 C 18 v input; 48 v, 1 a output ? aux winding output 9 v, 20 ma ? 1500 vrms, one minute primary and aux to secondary isolation (hipot) 0.551 14,0 max max 0.00 4/ 0,10 mm 1.053 26,75 1.116 28,1 1.024 26,0 1.10 28,0 0.108 2,75 0.039 1,0 0.079 2,0 0.148 3,75 0.148 3,75 recommended land p attern 0.657 16,7 1.30 33,02 max 1 1 12 12 6 6 7 7 dot indicates pin 1 6 5 3 8 1 au x pr imar y windings to be connected on the pc board. pr i sec 11 2 4 dimensions are in inches mm us uk t aiwan china singapore +1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-eur ope.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg ? coilcraft inc. 2016 this pr oduct may not be used in medical or high risk applications without prior coilcraft appr oval. specification subject to change without notice. please check web site for latest infor mation.
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