SG6901 Fairchild Semiconductor, SG6901 Datasheet - Page 13

• Manufacturer Part Number: SG6901
• Description: The highly integrated SG6901A is designed for power supplies with boost PFC and flyback PWM
• Manufacturer: Fairchild Semiconductor

© 2008 Fairchild Semiconductor Corporation
SG6901A • Rev. 1.0.2
Typical Performance Characteristics
110
PWM Open-Loop Protection Voltage (FB
4.80
4.68
4.56
4.44
4.32
4.20
Figure 19. PWM Open-Loop Protection Voltage
98
97
96
95
94
93
94
78
62
46
30
-40
-40
-40
Figure 17. PFC Maximum Duty Cycle
-25
-25
-25
Maximum Duty Cycle (DCY
Figure 21. OPWM Falling Time
Falling Time (t
-10
-10
-10
5
5
5
Temperature (°C)
Temperature (°C)
Temperature (°C)
20
20
20
F-PWM
35
35
35
) vs. Temperature
50
50
50
MAX
OPEN-LOOP
) vs. Temperature
65
65
65
80
80
80
) vs. Temperature
95
95
95
110
110
110
125
125
125
13
Figure 20. Peak Current Limit Threshold Voltage2
Peak Current Limit Threshold Voltage 2 (V
Figure 18. Peak Current Limit Threshold Voltage
Peak Current Limit Threshold Voltage 1 (V
0.75
0.73
0.71
0.69
0.67
0.65
PWM Maximum Duty Cycle (DCY
83
81
79
77
75
73
0.70
0.68
0.66
0.64
0.62
0.60
-40
-40
-40
Figure 22. PWM Maximum Duty Cycle
-25
-25
-25
-10
-10
-10
5
5
Temperature (°C)
5
Temperature (°C)
20
20
Temperature (°C)
20
35
35
35
MAXPWM
50
50
50
LIMIT-2
) vs. Temperature (°C)
LIMIT-1
65
65
65
) vs. Temperature
) vs. Temperature
80
80
80
95
www.fairchildsemi.com
95
95
110
110
110
125
125
125