SG6846 Ver la hoja de datos (PDF) - Fairchild Semiconductor
Número de pieza
componentes Descripción
Fabricante
SG6846 Datasheet PDF : 16 Pages
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Typical Performance Characteristics (Continued)
65.300
65.200
65.100
65.000
64.900
64.800
64.700
64.600
-40 -25 -10
5 20 35 50 65 80
Temperature (°C)
95 110 125
60
40
20
0
1.5
1.6
1.7
1.8
1.9
2
VFB (V)
2.1 2.2
2.3
Figure 13. PWM Frequency vs. Temperature
Figure 14. PWM Frequency vs. FB Voltage (RI=26kΩ)
1
1
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
0
0
1
1.5
2
2.5
3
1
1.5
2
2.5
3
VIN (V)
VIN (V)
Figure 15. Current-Limit Threshold vs. VIN Voltage Figure 16. 2/3 Current-Limit Threshold vs. VIN Voltage
78.000
77.000
76.000
75.000
74.000
73.000
72.000
71.000
70.000
-40 -25 -10
5 20 35 50 65 80
Temperature (°C)
95 110 125
1.115
1.095
1.075
1.055
1.035
1.015
-40 -25 -10
5 20 35 50 65 80
Temperature (°C)
95 110 125
Figure 17. Output Current of RT Pin (IRT)
vs. Temperature
Figure 18. OTP Threshold Voltage vs. Temperature
© 2008 Fairchild Semiconductor Corporation
SG6846 • Rev. 1.3.1
10
www.fairchildsemi.com
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