SG6859A Fairchild Semiconductor, SG6859A Datasheet - Page 7

• Manufacturer Part Number: SG6859A
• Description: This highly integrated PWM controller provides several special enhancements designed to meet the low standby-power needs of low-power SMPS
• Manufacturer: Fairchild Semiconductor

© 2007 Fairchild Semiconductor Corporation
SG6859A • Rev. 1.0.4
Typical Performance Characteristics
Figure 10. Center Frequency (f
Figure 8. Startup Current (I
Figure 6. Turn-on Threshold Voltage (V
17.0
16.8
16.6
16.4
16.2
16.0
3.0
2.5
2.0
1.5
1.0
0.5
70.0
69.0
68.0
67.0
66.0
65.0
-40
-40
-40
-25
-25
-25
-10
-10
-10
5
5
5
20
20
Temperature (℃)
Temperature (℃)
20
Temperature (℃)
vs. Temperature
35
35
35
DD-ST
50
50
50
OSC
) vs. Temperature
65
) vs. Temperature
65
65
80
80
80
95
95
95
DD-ON
110
110
110
)
125
125
125
7
Figure 7. Turn-off Threshold Voltage (V
13.0
12.0
11.0
10.0
3.5
3.3
3.1
2.9
2.7
2.5
Figure 9. Operating Supply Current (I
70.0
69.0
68.0
67.0
66.0
65.0
9.0
8.0
Figure 11. Maximum Duty Cycle (DCY
-40
-40
-40
-25
-25
-25
-10
-10
-10
5
5
5
20
20
Temperature (℃)
20
Temperature (℃)
Temperature (℃)
vs. Temperature
vs. Temperature
vs. Temperature
35
35
35
50
50
50
65
65
65
80
80
80
95
95
95
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DD-OP
MAX
DD-ON
110
110
110
)
)
)
125
125
125