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HPH3-0084L Datasheet(PDF) 6 Page - Coilcraft lnc. |
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HPH3-0084L Datasheet(HTML) 6 Page - Coilcraft lnc. |
6 / 10 page Specifications subject to change without notice. Please check our website for latest information. Hexa-Path Magnetics Document 613-6 Document 613-6 Revised 08/20/15 Inductors – using multiple windings DCR Volt-time Peak energy Part Inductance max product storage Isat Irms number (µH) (Ohms) (V-µsec) (µJ) (A) (A) HP3-0138L_ 11.2 ±20% 0.055 30.4 1.656 0.650 1.73 Connecting windings in series For higher inductance, the windings can be connected in series. As inductance increases, energy storage and Irms remain the same, but DCR increases and Isat decreases. Example: Calculate new electricals for HP3-0138L with four windings (Wn) connected in series: Inductance = Inductancetable × Wn2 = 11.2 × 42 = 179.2 µH DCR = DCRtable × Wn = 0.055 × 4 = 0.22 Ohms Isat = (Isattable) × 6 ÷ Wn = (0.65 × 6) ÷ 4 = 0.975 A Irms = Irmstable = 1.73 A Connecting windings in parallel To increase current ratings, the windings (Wn) can be connected in parallel. DCR decreases, current ratings increase, and inductance remains the same. Example: Calculate new electricals for HP5-0083L, with three (Wn) windings connected in parallel (equivalent to one winding in series): Inductance = Inductancetable = 11.2 µH DCR = 1 ÷ [Wn × (1 ÷ DCRtable)] = 1 ÷ [3 × (1 ÷ 0.045)] = 0.015 Ohms Isat = (Isattable × 6) ÷ Wn = (0.65 × 6) ÷ 1 = 3.9 A Irms = Irmstable × Wn = 1.73 × 3 = 5.19 A Formulas used to calculate electrical characteristics Connecting windings in series Inductance = Inductancetable × (number of windings)2 DCR = DCRtable × number of windings Isat = (Isattable × 6) ÷ number of windings connected in series Irms = Irmstable Connecting windings in parallel Inductance = Inductancetable DCR = 1 ÷ [number of windings × (1 ÷ DCRtable)] Isat = (Isattable × 6) ÷ number of windings connected in series Irms = Irmstable × number of windings 1 2 3 9 4 12 11 10 8 7 5 6 L= 179.2 µH DCR= 0.22 sat= 0.975 A rms= 1.73 A I I 1 2 3 9 4 12 11 10 8 7 5 6 L= 11.2 µH DCR= 0.015 sat= 3.9 A rms= 5.19 A I I |
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