FAN7529 Fairchild Semiconductor, FAN7529 Datasheet - Page 17

• Manufacturer Part Number: FAN7529
• Description: Critical Conduction Mode PFC Controller
• Manufacturer: Fairchild Semiconductor

FAN7529 Rev. 1.0.0
© 2006 Fairchild Semiconductor Corporation
7. Layout
8. Performance Data
P
100W
75W
50W
25W
OUT
Power Ground
Signal Ground
Efficiency
Efficiency
Efficiency
Efficiency
THD
THD
THD
THD
PF
PF
PF
PF
Figure 39. PCB Layout Considerations for FAN7529
85V
90.9%
91.6%
91.3%
86.4%
0.998
0.999
0.998
0.995
5.1%
4.1%
4.4%
7.9%
Separate the power ground
AC
sensing resistors close to IC
and the signal ground
Place the output voltage
17
115V
93.7%
93.3%
91.9%
87.1%
0.998
0.998
0.997
0.991
3.6%
3.6%
5.0%
8.6%
AC
230V
95.6%
94.6%
92.7%
87.3%
0.991
0.986
0.974
0.923
5.2%
5.0%
5.7%
8.3%
AC
265V
www.fairchildsemi.com
95.3%
93.4%
88.1%
0.984
0.975
0.956
0.876
6.2%
5.7%
6.2%
8.7%
96%
AC