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| FAN3121_13 Datasheet, PDF (17/21 Pages) Fairchild Semiconductor – Single 9-A High-Speed, Low-Side Gate Driver | |||
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Typical Application Diagrams
VIN
B2
A2
VOUT
B1
A1
From A2
From A1
BIAS
SR EN
FAN3122
VDD 1
IN 2
EN 3
4
8 VDD
7 OUT
6 OUT
5
AGND
PGND
FAN3122
VDD 1
IN 2
SR EN 3
EN
4
AGND
8 VDD
7 OUT
6 OUT
5
PGND
Figure 53. Full-Bridge Synchronous Rectification
VIN
VOUT
PWM
SR Enable
Active HIGH
FAN3121 VBIAS
VDD
IN
1
2
EN 3
AGND 4
P1
(AGND)
8
7
VDD
OUT
6 OUT
5 PGND
Figure 54. Hybrid Synchronous Rectification in a Forward Converter
© 2008 Fairchild Semiconductor Corporation
FAN3121 / FAN3122 ⢠Rev. 1.0.2
17
www.fairchildsemi.com
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