FSQ0465RS Datasheet, PDF (19/23 Pages) Fairchild Semiconductor – Green-Mode Fairchild Power Switch (FPS) for Quasi-Resonant Operation - Low EMI and High Efficiency

2. Transformer
FSQ0465RS Rev.00 _EER3016
1
10 _N12V/2
2
N_p/2
N_p/2 ³
9 _N12V/2
8
N_a ⁴
7 _N5V
5
6
FSQ0465RS Rev.00
Lp/2
(0.4φ)
L12V/2
(TIW 0.5φ,
2parallel)
LVcc(0.2φ)
L5V
(TIW 0.5φ,
2parallel)
L12V/2
(TIW 0.5φ,
2parallel)
Lp/2
(0.4φ)
1
2
99
4
77
88
5
66
10 10
2
3
Bottom of bobbin
99
Figure 38. Transformer Schematic Diagram of FSQ0465RS
3. Winding Specification
TAPE 4T
TAPE 1T
TAPE 2T
TAPE 2T
TAPE 2T
TAPE 2T
TAPE 2T
TAPE 1T
Position
Top
Bottom
No
Pin (s→f)
Wire
Insulation: Polyester Tape t = 0.025mm, Four Layers
N_p/2
2→1
0.4φ × 1
Insulation: Polyester Tape t = 0.025mm, Two Layers
N_12V/2
9→8
0.5φ × 2(TIW)
Insulation: Polyester Tape t = 0.025mm, Two Layers
N_a
4→5
0.15φ × 1
Insulation: Polyester Tape t = 0.025mm, Two Layers
N_5V
7→6
0.5φ × 2(TIW)
Insulation: Polyester Tape t = 0.025mm, Two Layers
N_12V/2
10 → 9
0.5φ × 2(TIW)
Insulation: Polyester Tape t = 0.025mm, Two Layers
N_p/2
3→2
0.4φ × 1
Turns
Winding Method
22 Two-Layer Solenoid Winding
5
Center Solenoid Winding
11 Center Solenoid Winding
4
Center Solenoid Winding
5
Center Solenoid Winding
32 Two-Layer Solenoid Winding
4. Electrical Characteristics
Inductance
Leakage
Pin
Specification
Remarks
1-3
800µH ± 10%
66kHz, 1V
1-3
15µH Maximum
Short all other pins
5. Core & Bobbin
! Core: EER3016 (Ae=109.7mm²)
! Bobbin: EER3016
© 2008 Fairchild Semiconductor Corporation
FSQ0465RS/RB Rev. 1.0.1
19
www.fairchildsemi.com