HP1-1400L Datasheet, PDF (10/10 Pages) Coilcraft lnc. – Hexa-Path Magnetics

Document 613-10
Hexa-Path Magnetics
Formulas used to calculate electrical characteristics
Connecting windings in series
Inductance = Inductance_table × (number of windings)²
DCR = DCR_table × number of windings
Isat = (Isat_table × 6) ÷ number of windings connected in series
Irms = Irmstable
Connecting windings in parallel
Inductance = Inductance_table
DCR = 1 ÷ [number of windings × (1 ÷ DCR_table)]
Isat = (Isat_table × 6) ÷ number of windings connected in series
Irms = Irms_table × number of windings
Create a 1 : 1 gate drive transformer
Choose HP1-1400L
Part
number
HP1-1400L
Inductance
(µH)
89.6 ±25%
DCR Volt-time Peak energy
max product storage Isat
(Ohms) (V-µsec)
(µJ)
(A)
0.130
23.4
N/A
N/A
Irms
(A)
0.74
Connecting primary windings in series
When primary windings (Wpri) are connected in series, inductance and
volt-time product increase, energy storage and Irms remain the same,
but DCR increases.
Example: For HPH1-1400L, connect three primary windings in series:
Inductance = Inductance_table × W_pri2
= 89.6 × 3² = 806.4 µH
DCR = DCRtable × Wpri
= 0.130 × 3 = 0.39 Ohms
VT = VT_table × W_pri
= 70.2 V-µsec
Irms = Irms_table
= 0.74
Connecting secondary windings in series
When secondary windings (Wsec) are connected in series, Irms
remains the same, but DCR increases.
Example: For HP1-1400L, connect three secondary windings in
series:
DCR = DCR_table × W_sec
= 0.130 × 3 = 0.39 Ohms
Irms = Irmstable
= 0.74
4
10
1
5
Pri
2
6
7
11
Sec
8
12
3
9
Primary:
L = 806.4 µH
DCR = 0.39⏲
Irms = 0.74 A
VT = 70.2 V-µsec
Secondary:
DCR = 0.39⏲
Irms = 0.74 A
© Coilcraft, Inc. 2009
Specifications subject to change without notice.
Please check our website for latest information.
Document 613-10 Revised 01/23/09