FAN7631 Fairchild Semiconductor, FAN7631 Datasheet - Page 8

• Manufacturer Part Number: FAN7631
• Description: The FAN7631 is a pulse-frequency modulation controller for high-efficiency half-bridge resonant converters that includes a high-side gate drive circuit, an accurate current-controlled oscillator, and various protection functions
• Manufacturer: Fairchild Semiconductor

© 2011 Fairchild Semiconductor Corporation
FAN7631 • 1.0.2
Typical Performance Characteristics
These characteristic graphs are normalized at T
Figure 12. Output Oscillation Frequency (R
Figure 10. Regulated R
Figure 14. Output Duty Cycle (R
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
-40
-40
-40
-20
-20
-20
vs. Temperature
vs. Temperature
0
0
0
Temperature [ ]
Temperature [ ]
Temperature [ ]
T
25
25
25
Voltage vs. Temperature
50
50
50
75
75
75
T
=2.7k)
100
100
100
A
=25ºC.
T
120
=2.7k)
120
120
(Continued)
8
Figure 11. Output Oscillation Frequency (R
Figure 13. Output Duty Cycle (R
1.30
1.20
1.10
1.00
0.90
0.80
0.70
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
Figure 15. I
-40
-40
-40
-20
-20
-20
vs. Temperature
vs. Temperature
0
0
0
SS1
Temperature [ ]
Temperature [ ]
Temperature [ ]
vs. Temperature
25
25
25
50
50
50
75
75
75
T
=11.6k)
100
100
100
www.fairchildsemi.com
T
=11.6k)
120
120
120