Coupled Inductors
Document 889-1
Coupled Inductors MSD1583 ForFlyback,SEPIC,Zeta and other Applications
0.590 ±0.020 15,0 ±0,5
0.590 ±0....
Description
Document 889-1
Coupled Inductors MSD1583 ForFlyback,SEPIC,Zeta and other Applications
0.590 ±0.020 15,0 ±0,5
0.590 ±0.020 15,0 ±0,5
123E X
Dot indicates pin1 Dash number
Internal code
Excellent coupling coefficient (k ≥ 0.98) and 500 Vrms isolation makes the MSD1583 series of coupled inductors ideal for use in a variety of circuits including flyback, multioutput buck, SEPIC and Zeta. These parts provide high inductance, high efficiency and excellent current handling. In SEPIC topologies, the required inductance for each winding is half the value needed for two separate inductors, allowing selection of a part with lower DCR and higher current handling.
+ D
L1 L2 C
VIN C SW
–
Typical Flyback Converter
+ VOUT
–
L2 D C
+ VOUTAUX
–
++
L1
VIN SW D
C
VOUT
––
Typical Buck Converter with auxiliary output
0.339 8,60
max
0.331 8,4
0.220 5,6
34 21
0.126 3,2
0.075 1,9 0.146 3,7
0.165 4,2
1 L1
3
+
VIN C
–
2 L2
+
4 VIN C
–
L1 Q
C1 L2
D C
Typical SEPIC schematic
Q C1 L2
L1 D
C
Typical Zeta schematic
+
VOUT
–
+
VOUT
–
21
0.311 Recommended 7,9 Land Pattern
34 0.091 2,3
If board traces are run in these areas, consider masking them to prevent shorting.
Dimensions
are in
inches mm
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Document 889-1 Revised 1/5/16
© Coilcraft Inc. 2016 ...
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