FSCQ-SERIES
2. Transformer Schematic Diagram
EER4245
1
18
17
16
15
14
13
12
11
10
Np1
N24V
Na
N15V
N8.5V
N140V/2
NP2
2
3
Np2
N140V/2
N140V/2
4
5
6
N140V/2
NP1
N8.5V
7
Na
N24V
8
9
N15V
3.Winding Specification
No
Pin (s→f)
18 - 17
1 - 3
Wire
Turns
5
Winding Method
Space Winding
Center Winding
Center Winding
Center Winding
Center Winding
Space Winding
Space Winding
Space Winding
N
0.65φ × 2
0.08φ × 20 × 2
0.08φ × 20 × 2
0.08φ × 20 × 2
0.08φ × 20 × 2
0.6φ × 1
24
p1
N
13
15
13
14
2
N
N
16 - 15
3 - 4
140V/2
N
p2
15 - 14
12 - 13
11 - 10
7 - 6
140V/2
N
8.5V
N
15V
0.6φ × 1
0.3φ × 1
3
N
a
8
4.Electrical Characteristics
Pin
1 - 4
1 - 4
Specification
220uH ± 5%
10uH Max
Remarks
Inductance
1kHz, 1V
2
nd all short
Leakage Inductance
5. Core & Bobbin
Core : EER4245
Bobbin : EER4245(18Pin)
Ae : 201.8 mm2
36
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
