Document 820-1 Coupled Inductors LPD5010 For Flyback, SEPIC, Zeta and other Applications The LPD5010 coupled miniature shielded inductors are mere 1 mm high and 5 mm square. They are ideal for use in a variety of circuits including flyback, multi-output buck, SEPIC and Zeta. These inductors provide high inductance, high efficiency and excellent current handling in a rugged, low cost part. They can also be used as two single inductors connected in series or parallel or as a common mode choke. + + D L1 C L2 VOUT C VIN – SW – Typical Flyback Converter D L2 Dot indicates pin 1 1 Dash number AUX + 4 XXX X C – 0.189 ±0.003 4,80 ±0,076 2 + VOUT + VIN 0.189 ±0.003 4,80 ±0,076 VOUT C – Typical Buck Converter with auxiliary output D + Recommended Land Pattern 0.035 ±0.004 0,9 ±0,1 D SW – 3 Internal code L1 L1 VIN 0.138 3,50 0.090 2,30 C L2 Q – + C1 C VOUT – Typical SEPIC schematic 45° typ 0.134 0.090 3,40 2,30 0.030 0,75 0.197 5,00 + Q VIN 0.060 1,52 1 L1 2 4 0.060 1,50 0.134 3,40 0.197 5,00 + – C L2 C1 L1 D Typical Zeta schematic C VOUT – L2 3 Dimensions are in inches mm Document 820-1 Revised 11/09/15 Document 820-2 Coupled Inductors for SEPIC Applications – LPD5010 Series Isat (A)6 Irms (A) CouplingLeakage Inductance2 DCR max3 SRF typ4 coefficient L typ5 10% 20% 30% both one Part number1 windings7 winding8 ±20% (µH) (Ohms) (MHz) typ (µH) drop drop drop LPD5010-681MR_ LPD5010-102MR_ LPD5010-152MR_ LPD5010-222MR_ LPD5010-332MR_ 0.68 1.0 1.5 2.2 3.3 0.07191 0.10150 0.15134 0.20108 0.27 83 0.95 0.95 0.97 0.97 0.98 0.07 2.6 2.7 2.8 0.09 2.1 2.1 2.2 0.09 1.7 1.8 1.8 0.11 1.5 1.6 1.6 0.13 1.2 1.31.3 1.95 1.50 1.20 1.10 0.95 2.76 2.12 1.70 1.56 1.34 LPD5010-472MR_ 4.7 LPD5010-562MR_ 5.6 LPD5010-682MR_ 6.8 LPD5010-822MR_ 8.2 LPD5010-103MR_10 0.40 68 0.45 60 0.53 55 0.70 50 0.78 46 0.98 0.15 0.981.0 1.1 0.75 1.06 0.990.16 0.90 0.93 0.940.700.99 0.990.19 0.83 0.86 0.870.600.85 0.990.22 0.74 0.77 0.780.500.71 0.990.27 0.67 0.69 0.700.500.71 LPD5010-153MR_15 LPD5010-223MR_22 LPD5010-333MR_33 LPD5010-473MR_47 LPD5010-683MR_68 1.19 33 0.990.34 0.53 0.55 0.560.420.59 1.58 26 0.990.40 0.45 0.47 0.480.350.49 2.50 23 0.990.48 0.37 0.38 0.390.300.42 3.48 17.00.990.63 0.31 0.32 0.330.250.35 5.10 14.90.990.90 0.25 0.26 0.270.190.26 LPD5010-104MR_ 100 8.011.20.991.39 0.21 0.22 0.220.150.21 LPD5010-154MR_150 11.7 9.900.99 2.100.17 0.17 0.18 0.120.16 LPD5010-224MR_220 15.2 8.050.99 3.020.14 0.15 0.15 0.110.15 1. Please specify termination and packaging codes: Coupled Inductor Core and Winding Loss Calculator LPD5010-224MRC 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 25°C that causes the specified inductance drop from its value without current. It is the sum of the current flowing in both windings. 7. Equal current when applied to each winding simultaneously that causes a 40°C temperature rise from 25°C 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 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. 9. Electrical specifications at 25°C. Refer to Doc 639 “Selecting Coupled Inductors for SEPIC Applications.” Refer to Doc 362 “Soldering Surface Mount Components” before soldering. This web-based utility allows you to enter frequency, peak-to-peak (ripple) current, and Irms current to predict temperature rise and overall losses, including core loss. Go to online calculator. Core material Ferrite Core and winding loss Go to online calculator Weight 60 – 70 mg Environmental RoHS compliant, halogen free Terminations RoHS compliant matte tin over nickel over silver. Other terminations available at additional cost. Ambient temperature –40°C to +85°C with (40°C rise) Irms current. Maximum part temperature +125°C (ambient + temp rise). Storage temperature Component: –40°C to +125°C. Tape and reel packaging: –40°C to +80°C Winding to winding isolation 100 Vrms Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Mean Time Between Failures (MTBF) 26,315,789 hours Packaging 1000/7″ reel; 3500/13″ reel Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 1.02 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 820-2 Revised 11/09/15 Document 820-3 Coupled Inductors for SEPIC Applications – LPD5010 Series Typical L vs Current Typical L vs Frequency Document 820-3 Revised 11/09/15