document 924b-1 flyback / buck transformer core material ferrite environmental rohs compliant, halogen free terminations rohs compliant silver-palladium-platinum-glass frit. other terminations available at additional cost. weight 210 C 225 mg ambient temperature C40c to +125c (ambient temperature + self-heating must not exceed a part temperature of 125c. see notes for calculating temperature rise due to self-heating.) storage temperature component: C40c to +125c. tape and reel packaging: C40c to +80c winding to winding isolation 1500 vdc 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 750/7 reel; 2500/13 reel plastic tape: 12 mm wide, 0.32 mm thick, 8 mm pocket spacing, 3.1 mm pocket depth recommended pick and place nozzle od: 5 mm; id: 2.5 mm pcb washing tested with pure water or alcohol only. for other solvents, see doc787_pcb_washing.pdf. document 924b-1 revised 09/17/12 dimensions are in inches mm 0.060 1,52 0.114 0.004 2,90 0,10 dash n umber inter nal code dot indicates pin 1 0.189 0.003 4,80 0,08 0.189 0.003 4,80 0,08 xxx x 14 23 recommended land p attern 0.197 5,00 0.134 3,40 0.059 1,50 0.138 3,50 0.197 5,00 45 typ 0.090 2,30 0.134 3,40 0.090 2,30 0.030 0,75 2 1 4 3 l1 l2 1 : 1 the MA5401-ae was developed for use with the texas in - struments ucc25230 switching converter (12 C 100 v input, 0.20 a output). it is designed to meet ul60950 functional isolation for working voltage up to 210 v peak. with 1000 vrms (1500 vdc) hipot and a small package size, this transformer is ideal for use in high density isolated circuit applications. it provides tight coupling (k > 0.99), high inductance and excellent current handling in a rugged, low cost part. for ti ucc25230 switching converter ++ ?? l1 l2 d1 c o c in s hs s ls c pr i v pr i t ypical fl ybac k / buc k co n ver ter v out v in 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. 2013 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.
MA5401-ae for ti ucc25230 switching converter document 924b-2 these parts are preproduction products for electrical evaluation only. specifcation subject to change without notice. document 924b-2 revised 09/17/12 coupling leakage part inductance 2 dcr max 3 srf typ 4 coeffcient inductance 5 i sat (a) 6 hipot 7 number 1 20% (h) (ohms) (mhz) typ typ (h) 10% drop 20% drop 30% drop (vdc) MA5401-ae_ 220 5.25 6.5 >0.99 0.541 0.16 0.21 0.24 1500 1. when ordering, please specify packaging code: MA5401-ae c packaging: c = 7 machine-ready reel. eia-481 embossed plastic tape (750 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. d = 13 machine-ready reel. eia-481 embossed plastic tape. factory order only, not stocked (2500 parts per full reel). 2. inductance shown for each winding, measured at 100 khz, 0.1 vrms, 0 adc on an agilent/hp 4284a lcr meter or equivalent. when leads are connected in parallel, inductance is the same value. when leads are connected in series, inductance is four times the value. 3. dcr is for each winding. when leads are connected in parallel, dcr is half the value. when leads are connected in series, dcr is twice the value. 4. srf measured using an agilent/hp 4191a or equivalent. when leads are connected in parallel, srf is the same value. 5. leakage inductance is for l1 and is measured with l2 shorted. 6. dc current, at which the inductance drops the specifed amount from its value without current. it is the sum of the current fowing in both windings. 7. hipot production tested 100% at 1800 vdc for 2 seconds. 8. electrical specifcations at 25c. refer to doc 362 soldering surface mount components before soldering. typical l vs frequency 100 200 300 400 500 600 700 800 1000 0.1 1 100 10 frequenc y (mhz) inductance (h) typical l vs current typical current derating -40 -20 02 04 06 08 0 100 140 120 a mbient t emperatur e (c) pe r cent of r ated c urrent 120 110 100 90 80 70 60 50 40 30 20 10 0 25 c temperature rise calculation based on current t emperature r ise = winding po wer loss 157c w winding po wer loss = (+) dcr in w atts (w) ii l1 2 l2 2 equal current in each winding (0.15 a): winding po wer loss = (0.15 + 0.15 ) 5.25 = 0.236 w t emperature r ise = 0.236 w 157c w = 37c 22 unequal current (ii l1 l2 ow er loss = (0.21 + 0.06 ) 5.25 = 0.250 w t emperature r ise = 0.250 w 157c w = 39.3c 22 = 0.21 a, = 0.06 a): winding p 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. 2013 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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