Data Sheet

© 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSQ0365, FSQ0265, FSQ0165, FSQ321 • Rev. 1.0.6 17
FSQ0365/0265/0165/321 — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter
Transformer
EER2828
N
12V
1
6
7
8
9
10
11
12
N
16V
N
5.1V
N
3.4V
N
p
/2
N
a
2
3
4
5
N
p
/2
N
16V
N
12V
N
a
N
5.1V
N
3.4V
N
p
/2
N
p
/2
6mm 3mm
FSQ0365RN Rev: 00
Figure 30. Transformer Schematic Diagram of FSQ0365RN
Table 1. Winding Specification
No.
Pin (sf)
Wire Turns Winding Method
N
p
/2
3
2 0.25

x 1
50 Center Solenoid Winding
Insulation: Polyester Tape t = 0.050mm, 2-Layer
N
3.4V
9
8 0.33

x 2
4 Center Solenoid Winding
Insulation: Polyester Tape t = 0.050mm, 2-Layer
N
5V
6
9 0.33

x 1
2 Center Solenoid Winding
Insulation: Polyester Tape t = 0.050mm, 2-Layer
N
a
4
5 0.25

x 1
16 Center Solenoid Winding
Insulation: Polyester Tape t = 0.050mm, 2-Layer
N
12V
10
12 0.33

x 3
14 Center Solenoid Winding
Insulation: Polyester Tape t = 0.050mm, 3-Layer
N
16V
11
12 0.33

x 3
18 Center Solenoid Winding
Insulation: Polyester Tape t = 0.050mm, 2-Layer
N
p
/2
2
1 0.25

x 1
50 Center Solenoid Winding
Insulation: Polyester Tape t = 0.050mm, 2-Layer
Table 2. Electrical Characteristics
Pin Specification Remarks
Inductance 1 - 3 1.4mH ± 10% 100kHz, 1V
Leakage 1 - 3 25µH Maximum Short All Other Pins
Core & Bobbin
 Core: EER2828 (Ae=86.66mm
2
)
 Bobbin: EER2828