sg6741a Fairchild Semiconductor, sg6741a Datasheet - Page 7

• Manufacturer Part Number: sg6741a
• Description: Sg6741a ? Highly Integrated Green-mode Pwm Controller
• Manufacturer: Fairchild Semiconductor

© 2008 Fairchild Semiconductor Corporation
SG6741A • Rev. 1.0.1
Typical Performance Characteristics
Figure 6. Startup Current (I
Figure 10. Supply Current Drawn from HV Pin (I
25
20
15
10
20. 0
19. 0
18. 0
17. 0
16. 0
15. 0
5. 0
4. 0
3. 0
2. 0
1. 0
0. 0
70
68
66
64
62
60
5
0
Figure 12. Frequency in Nominal Mode (f
- 40
Figure 8. Start Threshold Voltage (V
- 40
- 40
- 40
- 25
- 25
- 25
- 25
- 10
- 10
- 10
- 10
5
5
5
5
vs. Temperature
vs. Temperature
vs. Temperature
20
20
Temperature (°C)
20
20
Temperature (°C )
Temperature (
Temperature (°C)
35
35
35
35
DD-ST
50
50
50
50
°C
)
65
65
65
65
) vs. Temperature
80
80
80
80
95
95
95
95
DD-ON
OSC
110
110
110
110
)
)
HV
125
125
125
125
)
7
10
13. 0
12. 0
11. 0
10. 0
Figure 9. Minimum Operating Voltage (V
8
6
4
2
0
70. 0
68. 0
66. 0
64. 0
62. 0
60. 0
9. 0
8. 0
5. 0
4. 0
3. 0
2. 0
1. 0
0. 0
- 40
Figure 7. Operating Supply Current (I
- 40
- 40
Figure 13. Maximum Duty Cycle (DCY
- 40
- 25
- 25
- 25
- 25
- 10
- 10
- 10
Figure 11. Figure Caption
- 10
5
5
5
5
vs. Temperature
vs. Temperature
vs. Temperature
20
20
20
Tem perature ( °C )
20
Temperature (°C )
Temperature (°C)
Temperature (°C )
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-OP
MAX
DD-OFF
110
110
110
110
)
)
125
125
125
)
125