FAN6747 Fairchild Semiconductor, FAN6747 Datasheet - Page 10

• Manufacturer Part Number: FAN6747
• Description: The highly integrated FAN6747 PWM controller provides several features to enhance the performance of flyback converters
• Manufacturer: Fairchild Semiconductor

© 2010 Fairchild Semiconductor Corporation
FAN6747 • Rev. 1.0.3
Typical Performance Characteristics
Figure 12. Startup Current (I
Figure 16. Supply Current Drawn from HV Pin (I
Figure 18. Frequency in Normal Mode (f
Figure 14. Start Threshold Voltage (V
50
45
40
35
30
25
20
15
10
17.5
16.5
15.5
10
69
68
67
66
65
64
63
62
61
60
59
5
0
8
6
4
2
0
18
17
16
15
-40
-40
-40
-40
-25
-25
-25
-25
-10
-10
-10
-10
vs. Temperature
vs. Temperature
vs. Temperature
5
5
5
5
Temperature (℃ )
Temperature (℃ )
Temperature (℃ )
20
20
20
Temperature (℃ )
20
35
35
35
35
50
DD-ST
50
50
50
65
65
65
65
) vs. Temperature
80
80
80
80
95
95
95
95
DD-ON
110
110
110
110
OSC
)
125
125
125
125
)
HV
)
10
Figure 17. HV Pin Leakage Current After Startup
Figure 15. Minimum Operating Voltage (V
Figure 13. Operation Supply Current (I
Figure 19. Maximum Duty Cycle (DCY
2.6
2.4
2.2
1.8
1.6
1.4
1.2
10.5
7
6
5
4
3
2
1
90.5
89.5
88.5
9.5
8.5
7.5
-40
2
1
11
10
91
90
89
88
9
8
-40
-40
-40
-25
-25
-25
-25
-10
(I
-10
-10
-10
HV-LC
vs. Temperature
vs. Temperature
vs. Temperature
5
5
5
5
) vs. Temperature
20
Temperature (℃ )
Temperature (℃ )
20
Temperature (℃ )
Temperature (℃ )
20
20
35
35
35
35
50
50
50
50
65
65
65
65
80
80
80
80
95
95
95
95
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DD-OP1
MAX
110
110
110
110
DD-OFF
)
125
125
125
125
)
)