document 580-1 coupled inductors C lpd4012 for flyback, sepic and other applications core material ferrite core and winding loss go to online calculator weight 54 C 64 mg environmental rohs compliant, halogen free terminations rohs compliant matte tin over nickel over silver. other terminations available at additional cost. ambient temperature C40c to +85c with (40c rise) i rms current. maximum part temperature +125c (ambient + temp rise). storage temperature component: C40c to +125c. tape and reel packaging: C40c to +80c winding to winding isolation 100 v 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 1000/7 reel; 3500/13 reel plastic tape: 12 mm wide, 0.25 mm thick, 8 mm pocket spacing, 1.32 mm pocket depth recommended pick and place nozzle od: 4 mm; id: 2 mm pcb washing tested to mil-std-202 method 215 plus an additional aqueous wash. see doc787_pcb_washing.pdf . document 580-1 revised 11/09/15 dimensions are in inches mm 0.060 1,52 0.0433 0.004 1,10 0,10 dash n umber inter nal code dot indicates pin 1 0.155 0.003 3,94 0,076 0.155 0.003 3,94 0,076 xxx x 14 23 recommended land p attern 0.174 4,40 0.103 2,606 0.103 2,606 0.049 1,24 0.049 1,24 0.174 4,40 0.031 0,78 45 typ 1 4 2 3 2 1 4 3 l1 l2 l1 l2 + + ? ? d c c t ypical fl ybac k co n ver ter v out v in sw l1 l2 ++ + ?? ? d d c c sw t ypical buc k con ver ter with auxiliary output v out v out au x v in t ypical zeta schematic v out v in l1 l2 q c1 cc ++ ?? d t ypical sepic schematic v out v in l1 l2 q c1 c c ++ ?? d ? only 1.1 mm high and 4 mm square ? ideal for use in fyback, multi-output buck and sepic applications. ? high inductance, high effciency and excellent current handling ? can also be used as two single inductors connected in series or parallel or as a common mode choke.
document 580-2 revised 02/15/11 document 580-2 document 580-2 revised 11/09/15 coupled inductor core and winding loss calculator this web-based utility allows you to enter frequency, peak-to-peak (ripple) current, and i rms current to predict temperature rise and overall losses, including core loss. go to online calculator . coupling leakage i sat (a) 6 i rms (a) inductance 2 dcr max 3 srf typ 4 coeffcient l typ 5 10% 20% 30% both one part number 1 (h) (ohms) (mhz) typ (h) drop drop drop windings 7 winding 8 lpd4012-331nr_ 0.33 30% 0.042 255 0.94 0.06 5.2 5.4 5.6 1.87 2.65 lpd4012-561nr_ 0.56 30% 0.087 185 0.95 0.08 3.7 3.8 3.9 1.30 1.84 lpd4012-821nr_ 0.82 30% 0.100 130 0.97 0.09 3.2 3.3 3.4 1.21 1.72 lpd4012-152nr_ 1.5 30% 0.185 86 0.97 0.11 2.50 2.81 2.91 1.15 1.62 lpd4012-222nr_ 2.2 30% 0.235 70 0.98 0.14 2.30 2.40 2.50 0.95 1.35 lpd4012-332nr_ 3.3 30% 0.320 48 0.98 0.16 1.80 1.90 2.00 0.75 1.06 lpd4012-472mr_ 4.7 20% 0.500 39 0.98 0.18 1.60 1.70 1.80 0.65 0.92 lpd4012-562mr_ 5.6 20% 0.620 32 0.99 0.20 1.50 1.60 1.60 0.55 0.78 lpd4012-682mr_ 6.8 20% 0.530 31 0.99 0.22 1.20 1.52 1.63 0.60 0.86 lpd4012-822mr_ 8.2 20% 0.600 29 0.99 0.24 1.10 1.20 1.30 0.55 0.78 lpd4012-103mr_ 10 20% 0.750 25 0.99 0.26 0.98 1.00 1.10 0.50 0.71 lpd4012-153mr_ 15 20% 1.13 21 0.99 0.30 0.90 0.92 0.94 0.43 0.60 lpd4012-223mr_ 22 20% 1.63 15 0.99 0.34 0.70 0.82 0.84 0.34 0.48 lpd4012-333mr_ 33 20% 1.83 12 >0.99 0.41 0.37 0.57 0.58 0.31 0.44 lpd4012-473mr_ 47 20% 2.52 8.8 >0.99 0.51 0.33 0.39 0.40 0.28 0.39 lpd4012-683mr_ 68 20% 3.23 7.8 >0.99 0.66 0.27 0.36 0.37 0.25 0.36 lpd4012-823mr_ 82 20% 3.66 7.3 >0.99 0.75 0.27 0.27 0.29 0.23 0.31 lpd4012-104mr_ 100 20% 4.76 6.1 >0.99 0.86 0.22 0.28 0.29 0.20 0.27 lpd4012-124mr_ 120 20% 5.54 5.3 >0.99 0.98 0.21 0.26 0.27 0.19 0.27 lpd4012-154mr_ 150 20% 6.90 4.6 >0.99 1.19 0.18 0.26 0.27 0.17 0.23 lpd4012-184mr_ 180 20% 8.75 4.1 >0.99 1.40 0.16 0.21 0.23 0.14 0.18 lpd4012-224mr_ 220 20% 11.24 3.3 >0.99 1.66 0.15 0.16 0.17 0.12 0.17 lpd4012-334mr_ 330 20% 17.00 2.8 >0.99 2.45 0.13 0.16 0.16 0.10 0.14 1. please specify termination and packaging codes: lpd4012-334m rc termination: r = rohs compliant, matte tin over nickel over silver. special order: q = rohs tin-silver-copper (95.5/4/0.5) or p = non-rohs tin-lead (63/37). packaging: c = 7 machine-ready reel. eia-481 embossed plastic tape (1000 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 (3500 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 25c that causes the specifed inductance drop from its value without current. it is the sum of the current fowing in both windings. 7. equal current when applied to each winding simultaneously that causes a 40c temperature rise from 25c ambient. this information is for reference only and does not represent absolute maximum ratings. 8. maximum current when applied to one winding that causes a 40c temperature rise from 25c ambient. this information is for reference only and does not represent absolute maximum ratings. 9. electrical specifcations at 25c. refer to doc 639 selecting coupled inductors for sepic applications. refer to doc 362 soldering surface mount components before soldering. coupled inductors for sepic applications C lpd4012 series
document 580-3 revised 02/15/11 document 580-3 document 580-3 revised 11/09/15 typical l vs current typical l vs frequency 0. 1 1 10 1000 100 0.01 0.1 11 0 current (a) inductance (h) 330 h 10 h 33 h 100 h 3.3 h 1.5 h 0.33 h 0. 1 1 10 1000 100 0.1 1 10 100 frequency (mhz) inductance (h) 330 h 10 h 33 h 100 h 3.3 h 1.5 h 0.33 h coupled inductors for sepic applications C lpd4012 series
|
