LPD6235-103MRC

Document 833-1 Coupled Inductors LPD6235 For Flyback, SEPIC, Zeta and other Applications Tight coupling (k ≥ 0.97) makes the LPD6235 series of coupled inductors ideal for use in a variety of circuits including flyback, multi-output buck, SEPIC and Zeta. These coupled miniature shielded inductors are 3.5 mm high and 6.0 mm square. They provide high inductance, high efficiency and excellent current handling in low cost part. They can be used as two single inductors connected in series or parallel, as a common mode choke or as a 1 : 1 transformer. + + D L1 C L2 VOUT C VIN – SW – 0.236 ±0.003 6,0 ±0,08 + VOUT C AUX – 4 XXX X D L2 Dot indicates pin 1 1 2 Typical Flyback Converter + 0.236 ±0.003 6,0 ±0,08 + VIN 3 L1 D SW VOUT C – – Typical Buck Converter with auxiliary output Dash number Internal code D + 0.138 max 3,5 L1 Recommended Land Pattern 1 4 0.047 1,20 0.167 0.079 4,25 2,00 0.260 6,60 1 C L2 Q – C + L2 C1 Q – VOUT – Typical SEPIC schematic + VIN 0.079 2,00 0.167 4,25 0.260 6,60 0.079 2,00 2 45° typ 3 2 L1 VIN + C1 L1 C D Typical Zeta schematic C VOUT – 4 Dimensions are in L2 inches mm 3 US +1-847-639-6400 sales@coilcraft.com UK +44-1236-730595 sales@coilcraft-europe.com Taiwan +886-2-2264 3646 sales@coilcraft.com.tw China +86-21-6218 8074 sales@coilcraft.com.cn Singapore + 65-6484 8412 sales@coilcraft.com.sg Document 833-1  Revised 07/15/13 © Coilcraft Inc. 2014 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Document 833-2 Coupled Inductors – LPD6235 Series   Part number1   Inductance2 ±20% (µH) LPD6235-682ME_ 6.8 LPD6235-103ME_ 10 LPD6235-223ME_ 22 LPD6235-473ME_ 47 LPD6235-474ME_ 470 LPD6235-105ME_ 1000 LPD6235-155ME_ 1500 LPD6235-205ME_ 2000   Isat (A)6      Irms (A) 10% 20% 30% both one drop drop drop   windings7   winding8 0.108 31 0.99 0.10 2.80 3.00 3.12 1.60 2.26 0.157 27 0.99 0.12 2.50 2.70 2.80 1.40 1.98 0.300 15 >0.99 0.15 1.50 1.67 1.73 0.85 1.20 0.620 9.7 >0.99 0.21 0.90 0.98 0.99 0.60 0.85 3.50 3.0 >0.99 0.61 0.18 0.22 0.23 0.25 0.35 7.00 1.9 >0.99 1.05 0.12 0.14 0.15 0.15 0.21 10.8 1.5 >0.99 1.70 0.12 0.12 0.13 0.14 0.20 16.0 1.3 >0.99 2.10 0.08 0.11 0.12 0.11 0.16   Leakage5 DCR SRF Coupling   typ4 coefficient L typ (Ohms) (MHz) typ (µH)   max3 1. Please specify termination and packaging codes: LPD6235-205MEC Termination: E = RoHS compliant Silver-palladium-platinum-glass frit. Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = nonRoHS tin-lead (63/37). Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (350 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 (1500 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 specified amount 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. See temperature rise calculation. 8. Maximum current when applied to one winding that causes a 40°C temperature rise from 25°C ambient. See temperature rise calculation. 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. Coupled Inductor Core and Winding Loss Calculator 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  420 – 480 mg Environmental  RoHS compliant, halogen free Terminations  RoHS compliant silver-palladium-platinum-glass frit. Other terminations available at additional cost. Ambient temperature  –40°C to +85°C with Irms current, +85°C to +125°C with derated current Storage temperature  Component: –40°C to +125°C. Tape and reel packaging: –40°C to +80°C Winding to winding isolation  100 V 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