Data Sheet

www.onsemi.com
19
FAN7930C — Critical Conduction Mode PFC Controller
Transformer
1,2
N
p
Naux
9,10
6,7
3,4
EER3019N
9,10
6,7
1,2
3,4
N
P
N
aux
Figure 46. Transformer Schematic Diagram
Winding Specification
Position
No
Pin (S → F)
Wire
Turns
Winding Method
Bottom
N
p
3, 4 → 1, 2
0.1φ×50
39
Solenoid Winding
Insulation: Polyester Tape t = 0.05mm, 3 Layers
Top
N
AUX
9,10 → 6,7
0.3φ
5
Solenoid Winding
Insulation: Polyester Tape t = 0.05 mm, 4 Layers
Electrical Characteristics
Pin
Specification
Remark
Inductance
3, 4 → 1, 2
194 H ±5%
100 kHz, 1 V
Core & Bobbin
Core: EER3019, Samhw a (PL-7) (Ae=137.0mm
2
)
Bobbin: EER3019