Typical Performance Characteristics
7
62
60
6
58
5
56
54
4
52
3
-40 -30 -15
0
25
50
75
Temperature (℃)
85 100 125
50
-40 -30 -15
0
25
50
75
Temperature (℃)
85 100 125
Figure 14. FB Open-Loop Trigger Level (VFB-OLP) vs. Figure 15. Delay Time of FB Pin Open-Loop Protection
Temperature
(tD-OLP) vs. Temperature
0.15
100
0.145
99
0.14
98
0.135
97
0.13
-40 -30 -15
0 25 50 75
Temperature (℃)
85 100 125
Figure 16. Threshold Voltage for SENSE Short-Circuit
Protection (VS-SCP) vs. Temperature
1.2
1.1
96
-40 -30 -15
0 25 50 75
Temperature (℃)
85 100 125
Figure 17. Output Current from RT Pin (IRT)
vs. Temperature
0.9
0.8
1
0.7
0.9
0.6
0.8
-40 -30 -15
0 25 50 75
Temperature (℃)
85 100 125
Figure 18. Over-Temperature Protection Threshold
Voltage (VRTTH1) vs. Temperature
28
27
26
25
24
23
-40 -30 -15
0
25
50
75
Temperature (℃)
85 100 125
Figure 20. VDD Over-Voltage Protection (VDD-OVP)
vs. Temperature
0.5
-40 -30 -15
0 25 50 75
Temperature (℃)
85 100 125
Figure 19. Over-Temperature Protection Threshold
Voltage (VRTTH2) vs. Temperature
© 2008 Fairchild Semiconductor Corporation
SG6742HL/HR • Rev. 1.0.4
8
www.fairchildsemi.com