Coupled Inductor
Document 833-1
Coupled Inductors – LPD6235 ForFlybackand other Applications
Tight coupling (k ≥ 0.97) makes the LPD6235...
Description
Document 833-1
Coupled Inductors – LPD6235 ForFlybackand 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.
0.236 ±0.003 6,0 ±0,08
14 0.236 ±0.003 6,0 ±0,08
2 XXX X 3
Dash Internal number code
Dot indicates pin 1
0.138 3,5
max
Recommended Land Pattern
1 0.167 0.079 4,25 2,00
0.047 1,20
4 45° typ 0.260 6,60
0.079 2,00
14 L1 L2
23
23
0.079 2,00 0.167 4,25 0.260 6,60
Dimensions
are
in
inches mm
+ 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
+
VIN C
L1 Q
C1 L2
D C
+
VOUT
–– Typical SEPIC schematic
+
VIN C
–
Q C1 L2
L1 D
C
Typical Zeta schematic
+
VOUT
–
Document 833-1 Revised 11/09/15
Document 833-2
Coupled Inductors – LPD6235 Series
Inductance2
Part number1 ±20% (µH)
DCR SRF Coupling Leakage5
Isat (A)6 Irms (A)
max3
typ4 coefficient L typ
10% 20% 30% both one
(Ohms) (MHz)
typ
(µH)
drop drop drop windings7 winding8
LPD6235-682MR_ 6.8 LPD6235-103MR_ 1...
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