NCV4949A
www.onsemi.com
6
TYPICAL CHARACTERIZATION CURVES (continued)
6.0
5.0
4.0
3.0
2.0
4.0 4.1
V
out
, OUTPUT VOLTAGE (V)
1.0
0
Resistor 10 kW
from Reset Output
to 5.0 V
T
J
= 25°C
V
Reset
, RESET OUTPUT (V)
4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0
4.7
4.66
4.62
4.58
4.5
-40 -20
T
J
, JUNCTION TEMPERATURE (°C)
4.46
4.42
Upper Threshold
V
Reset
, RESET THRESHOLD VOLTAGE (V)
0 20 40 60 80 100 120
4.54
Lower Threshold
Figure 8. Quiescent Current versus
Output Current
Figure 9. Quiescent Current versus
Supply Voltage
6.0
5.0
4.0
2.0
1.0 1.15
V
SI
, SENSE INPUT VOLTAGE (V)
1.0
0
T
J
= 25°C
V
SO
, SENSE OUTPUT VOLTAGE (V)
1.2 1.25 1.3 1.35 1.4 1.45 1.5
3.0
Resistor 10 k
from Sense Output
to 5.0 V
1.11.05
1.4
1.38
1.36
1.34
1.3
-40 -20
T
J
, JUNCTION TEMPERATURE (°C)
1.28
1.2
Upper Threshold
V
SI
, SENSE INPUT VOLTAGE (V)
0 20 40 60 80 100 120
1.32
Lower Threshold
1.26
1.24
1.22
Figure 10. Reset Output versus
Regulator Output Voltage
Figure 11. Reset Thresholds versus
Junction Temperature
Figure 12. Sense Output versus
Sense Input Voltage
Figure 13. Sense Thresholds versus
Junction Temperature
3.0
2.5
2.0
1.5
1.0
0.1 1.0 10 100
0.5
0
V
CC
= 14 V
T
J
= 25°C
I
out
, OUTPUT CURRENT (mA)
I
Q
, QUIESCENT CURRENT (mA)
3.0
2.5
2.0
1.5
1.0
0 5.0 10 15 20 25 30
V
CC
, SUPPLY VOLTAGE (V)
0.5
0
R
L
= 5.0 kW
R
L
= 100 W
T
J
= 25°C
I
Q
, QUIESCENT CURRENT (mA)
140
