SG6858 Fairchild Semiconductor, SG6858 Datasheet - Page 7

• Manufacturer Part Number: SG6858
• 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

© 2008 Fairchild Semiconductor Corporation
SG6858 • Rev. 1.2.4
Typical Performance Characteristics
Figure 12. Green Mode Entry FB Voltage (V
Figure 14. Leading-Edge Blanking Time (t
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
350
330
310
290
270
250
-40
-40
Leading-Edge Blank ing Time (t
-25
-25
Green-M ode Entry FB Voltage(V
-10
-10
5
5
vs. Temperature
vs. Temperature
Tem perature (℃)
20
Tem perature (℃)
20
Temperature
35
35
50
50
L E B
65
65
) v s Tem perature
80
80
FB -N
V
V
) v s
DD
95
95
DD
=15V
=15V
110
110
LEB
FB-N
(Continued)
125
125
)
)
7
Figure 13. Green Mode Ending FB Voltage (V
2.50
2.40
2.30
2.20
2.10
2.00
1.90
3.5
3.0
2.5
2.0
1.5
Figure 15.
12
-40
Operation Current (I
13
-25
Green-M ode Ending FB Voltage (V
14
-10
15
Operating Current (I
5
vs. Temperature
16
Tem perature (℃)
Temperature
20
VDD Voltage (V)
Tem perature
17
35
DD-OP
18
50
) vs VDD Voltage
19
65
20
80
DD-OP
21
FB -G
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V
95
) v s
22
DD
) vs.
=15V
110
23
FB-G
125
24
)