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L4949D View Datasheet(PDF) - ON Semiconductor

Part Name
Description
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L4949D Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
L4949, NCV4949
TYPICAL CHARACTERIZATION CURVES (continued)
6.0
TJ = 25°C
5.0
Resistor 10 k
4.0 from Reset Output
to 5.0 V
3.0
2.0
1.0
0
4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0
Vout, OUTPUT VOLTAGE (V)
Figure 8. Reset Output versus
Regulator Output Voltage
4.7
4.66
Upper Threshold
4.62
4.58
4.54
4.5
Lower Threshold
4.46
4.42
−40 −20
0 20 40 60 80 100 120
TJ, JUNCTION TEMPERATURE (°C)
Figure 9. Reset Thresholds versus
Junction Temperature
6.0
5.0 TJ = 25°C
4.0 Resistor 10 k
from Sense Output
3.0 to 5.0 V
2.0
1.0
0
1.0 1.05 1.1 1.15 1.2 1.25 1.3 1.35 1.4 1.45 1.5
VSI, SENSE INPUT VOLTAGE (V)
Figure 10. Sense Output versus
Sense Input Voltage
1.4
1.38
1.36
1.34
1.32
1.3
1.28
1.26
1.24
1.22
1.2
−40
Upper Threshold
Lower Threshold
−20 0 20 40 60 80
TJ, JUNCTION TEMPERATURE (°C)
100 120
Figure 11. Sense Thresholds versus
Junction Temperature
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