SG6742MR_ML Fairchild Semiconductor, SG6742MR_ML Datasheet - Page 8

• Manufacturer Part Number: SG6742MR_ML
• Description: The highly integrated SG6742ML/MR PWM controller provides several features to enhance the performance of flyback converters
• Manufacturer: Fairchild Semiconductor

© 2008 Fairchild Semiconductor Corporation
SG6742ML/MR • Rev. 1.0.4
Typical Performance Characteristics
Figure 16. Threshold Voltage for SENSE Short-Circuit
Figure 18. Over-Temperature Protection Threshold
Figure 14. FB Open-Loop Trigger Level (V
7
6
5
4
3
-40
0.145
0.135
1.2
1.1
0.9
0.8
0.15
0.14
0.13
1
-40
Protection (V
-40
-30
Voltage (V
-30
-30
-15
-15
-15
vs. Temperature
0
RTTH1
Figure 20. V
0
S-SCP
Temperature (℃)
Temperature ( ℃ )
0
Temperature ( ℃ )
25
) vs. Temperature
25
) vs. Temperature
25
50
50
50
DD
26.5
25.5
75
75
75
27
26
25
Over-Voltage Protection (V
-40
85
85
85
-30
100
100
100
FB-OLP
-15
125
125
125
)
0
Temperature ( ℃ )
8
25
Figure 15. Delay Time of FB Pin Open-Loop Protection
Figure 19. Over-Temperature Protection Threshold
50
Figure 17. Output Current from RT Pin (I
62
60
58
56
54
52
50
100
0.9
0.8
0.7
0.6
0.5
99
98
97
96
75
-40
DD-OVP
-40
-40
Voltage (V
85
-30
-30
-30
) vs. Temperature
(t
100
D-OLP
-15
-15
-15
vs. Temperature
125
) vs. Temperature
RTTH2
0
0
0
Temperature ( ℃ )
Temperature ( ℃ )
Temperature (℃)
) vs. Temperature
25
25
25
50
50
50
75
75
75
85
85
85
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100
100
100
RT
125
)
125
125