FSFR1800L データシートの表示（PDF） - Fairchild Semiconductor

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FSFR1800L

Fairchild Power Switch (FPS™) for Half-Bridge Resonant Converters

Fairchild Semiconductor 

Typical Application Circuit (Continued)

Usually, LLC resonant converters require large leakage inductance value. To obtain a large leakage inductance,

sectional winding method is used.

ƒ Core: EER3542 (Ae=107 mm2)

ƒ Bobbin: EER3542 (Horizontal)

EC35

2 Np

6

13 Ns2

12 Ns1

10

9

Figure 30. Transformer Construction

Pins (S → F)

Np

8→1

Ns1

12 → 9

Ns2

16 → 13

Wire

0.12φ×30 (Litz Wire)

0.1φ×100 (Litz Wire)

0.1φ×100 (Litz Wire)

Turns

36

4

4

Note

Bifilar Winding

Bifilar Winding

Primary-Side Inductance (Lp)

Primary-Side Effective Leakage (Lr)

Pins

1－8

1－8

Specifications

630μH ± 5%

135μH ± 5%

Remark

100kHz, 1V

Short One of the secondary Windings

© 2007 Fairchild Semiconductor Corporation

FSFR series Rev.1.0.9

15

www.fairchildsemi.com

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