1102 silver lake road cary il 60013 phone fax 800-981-0363 847-639-1508 e-mail web cps@coilcraft.com www.coilcraft-cps.com ? ? coilcraft, inc. 2010 1102 silver lake road cary il 60013 phone fax 800-981-0363 847-639-1508 e-mail web cps@coilcraft.com www.coilcraft-cps.com ? ? coilcraft, inc. 2010 specifications subject to change without notice. please check our website for latest information. document ml704-1 revised 07/06/10 the ml612pnd series of coupled inductors was de- signed for high temperature applications ? up to 155c. the excellent coupling coefficient (k 0.94) makes it ideal for use in sepic applications. in sepic topolo- gies, the required inductance for each winding in a coupled inductor is half the value needed for two sepa- rate inductors, allowing selection of a part with lower dcr and higher current handling. these inductors provide high inductance, high effi- ciency and excellent current handling in a very rugged part. they are well suited for use as vrm inductors in high-current dc-dc and vrm/vrd controllers. they can also be used as two single inductors con- nected in series or parallel, as a common mode choke or as a 1 : 1 transformer. 123 x recommended land pattern 0.197 5,0 0.059 1,5 0.197 5,0 0.138 3,5 0.484 12,3 max 0.484 12,3 max dash number dot indicates pin1 internal code 1 4 2 3 0.217 5,5 0.177 4,5 0.157 4,0 0.079 2,0 1 4 2 3 0.308 0.010 7,8 0,25 3 1 2 4 l1 l2 l1 l2 q1 c1 c2 + ++ ?? d1 v out v in load typical sepic schematic refer to application note, document 639, ?selecting coupled inductors for sepic applications? military grade coupled inductors ml612pnd 1278 coupled inductors core material ferrite terminations matte tin over nickel over phos bronze. weight: 3.8 g ? 4.6 g ambient temperature ?55c to +105c with i rms current, +105c to +155c with derated current storage temperature component: ?55c to +155c. packaging: ?55c 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) enhanced crush-resistant packaging 500/13 reel; plastic tape: 24 mm wide, 0.4 mm thick, 16 mm pocket spacing, 8.1 mm pocket depth dimensions are in inches mm
document ml704-2 revised 07/06/10 1102 silver lake road cary il 60013 phone fax 800-981-0363 847-639-1508 e-mail web cps@coilcraft.com www.coilcraft-cps.com ? ? coilcraft, inc. 2010 ml612pnd series (1278) specifications subject to change without notice. please check our website for latest information. 1. when ordering, please specify testing code: ml612pnd105kl z testing: z = cots h = screening per coilcraft cp-sa-10001 n = screening per coilcraft cp-sa-10004 c = custom screening (please specify when ordering) 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. typical dc current, at which the inductance drops the specified amount from its value without current. it is the sum of the current flowing in both windings. 6. equal current when applied to each winding simultaneously that causes a 40c temperature rise from 25c ambient. see temperature rise calculation. 7. maximum current when applied to one winding that causes a 40c temperature rise from 25c ambient. see temperature rise calculation. 8. electrical specifications at 25c. refer to doc 639 ?selecting coupled inductors for sepic applications.? refer to doc 362 ?soldering surface mount components? before soldering. temperature rise calculation based on specified i rms 1278 coupled inductors i rms (a) inductance 2 dcr max 3 srf (mhz) 4 i sat (a) 5 both one part number 1 (h) (ohms) min typ 10% drop 20% drop 30% drop windings 6 winding 7 ml612pnd472mlz 4.7 20% 0.040 26.0 33.0 13.90 15.20 16.36 3.16 4.47 ml612pnd562mlz 5.6 20% 0.046 24.0 30.0 13.38 14.86 15.74 2.87 4.06 ml612pnd682mlz 6.8 20% 0.048 18.0 23.0 12.10 13.56 14.20 2.81 3.98 ml612pnd822mlz 8.2 20% 0.055 16.0 20.0 10.30 11.52 12.20 2.76 3.90 ml612pnd103mlz 10 20% 0.058 14.0 17.0 8.80 10.00 10.66 2.56 3.62 ml612pnd123mlz 12 20% 0.062 12.0 15.0 8.20 9.18 9.74 2.48 3.50 ml612pnd153mlz 15 20% 0.072 10.0 13.0 7.40 8.36 9.03 2.30 3.25 ml612pnd183mlz 18 20% 0.080 9.6 12.0 6.50 7.38 7.86 2.18 3.08 ml612pnd223mlz 22 20% 0.096 8.8 11.0 6.00 6.80 7.26 1.99 2.81 ml612pnd273mlz 27 20% 0.120 8.0 10.0 5.80 6.56 7.02 1.78 2.52 ml612pnd333mlz 33 20% 0.150 7.6 9.5 5.50 6.10 6.52 1.59 2.25 ml612pnd393mlz 39 20% 0.161 6.8 8.5 4.70 5.26 5.60 1.54 2.18 ml612pnd473mlz 47 20% 0.180 6.0 7.5 3.70 4.34 4.60 1.45 2.05 ml612pnd563mlz 56 20% 0.190 5.6 7.0 3.60 4.18 4.50 1.41 2.00 ml612pnd683mlz 68 20% 0.210 5.2 6.5 3.50 4.04 4.32 1.35 1.90 ml612pnd823mlz 82 20% 0.280 4.0 5.0 3.30 3.72 4.02 1.16 1.65 ml612pnd104mlz 100 20% 0.300 3.6 4.5 2.80 3.24 3.46 1.13 1.59 ml612pnd124klz 120 10% 0.410 3.4 4.3 2.60 2.94 3.16 0.96 1.36 ml612pnd154klz 150 10% 0.460 3.3 4.1 2.20 2.54 2.70 0.91 1.29 ml612pnd184klz 180 10% 0.510 3.2 4.0 2.10 2.42 2.58 0.86 1.22 ml612pnd224klz 220 10% 0.690 2.7 3.4 1.90 2.16 2.28 0.74 1.05 ml612pnD274KLZ 270 10% 0.900 2.5 3.1 1.70 1.94 2.10 0.65 0.92 ml612pnd334klz 330 10% 1.02 2.3 2.9 1.50 1.70 1.84 0.61 0.86 ml612pnd394klz 390 10% 1.12 2.2 2.7 1.40 1.60 1.70 0.58 0.82 ml612pnd474klz 470 10% 1.53 1.8 2.2 1.30 1.50 1.60 0.50 0.70 ml612pnd564klz 560 10% 1.69 1.6 2.0 1.20 1.34 1.46 0.47 0.67 ml612pnd684klz 680 10% 2.29 1.4 1.7 1.00 1.08 1.22 0.41 0.58 ml612pnd824klz 820 10% 2.55 1.1 1.4 0.900 1.04 1.18 0.39 0.55 ml612pnd105klz 1000 10% 2.87 1.0 1.3 0.850 0.948 1.05 0.37 0.52 temperature rise ( t) = winding power loss 52.6c w t = 52.6c w ( + ) dcr ii l1 2 l2 2 winding power loss = ( + ) dcr in watts (w) i i l1 2 l2 2 example 1. 612pnd153 (equal current in each winding) winding power loss = (2.3 + 2.3 ) 0.072 = 0.761 w t = 0.761 w 52.6c w = 40c 22 example 2. ( = 2.4 a, winding p 612pnd153 ii l1 l2 22 ower loss = (2.4 + 1.3 ) 0.072 = 0.536 w t = 0.536 w 52.6c w = 28.2c = 1.3 a)
document ml704-3 revised 07/06/10 1102 silver lake road cary il 60013 phone fax 800-981-0363 847-639-1508 e-mail web cps@coilcraft.com www.coilcraft-cps.com ? ? coilcraft, inc. 2010 ml612pnd series (1278) specifications subject to change without notice. please check our website for latest information. typical l vs frequency typical l vs current current derating 1 10 100 1000 10000 0.01 0.1 10 1 inductance (h) frequency (mhz) 100 h 47 h 10 h 4.7 h 1000 h 470 h 1 10 100 1000 10000 0.1 1 100 10 inductance (h) current (a) 100 h 47 h 10 h 4.7 h 1000 h 470 h 1278 coupled inductors 120 110 100 90 80 70 60 50 40 30 20 10 0 25c i sat i rms percent of rated current -40 -55 -20 0 20 40 60 80 100 160 140 120
|
