SBVS050I – MAY 2004 – REVISED AUGUST 2008...........................................................................................................................................................
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TYPICAL CHARACTERISTICS
At T
J
= +25°C, V
DD
= 3.3V, R
LRESET
= 100kΩ, and C
LRESET
= 50pF, unless otherwise noted.
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
4.0
3.5
3.0
I
DD
(µA)
2.5
2.0
1.5
1.0
−
40_ C
RESET TIMEOUT PERIOD
vs
C
T
100
+125_ C
RESET Timeout (sec)
10
−40°C, +25°C, +125°C
1
+85_ C
+25_C
0.1
0.01
0.5
0
0
1
2
3
4
V
DD
(V)
5
6
7
0.001
0.0001
0.001
0.01
0.1
C
T
(µF)
1
10
Figure 3.
NORMALIZED RESET TIMEOUT PERIOD
vs
TEMPERATURE
(C
T
= OPEN, C
T
= V
DD
, C
T
= Any)
10
Normalized RESET Timeout Period (%)
8
6
4
2
0
−2
−4
−6
−8
−10
−50
−30
−10
10
30
50
70
90
110
130
Temperature (°C)
Figure 4.
MAXIMUM TRANSIENT DURATION AT SENSE
vs
SENSE THRESHOLD OVERDRIVE VOLTAGE
100
Transient Duration below V
IT
(µs)
RESET OCCURS
ABOVE THE CURVE
10
1
0
5
10
15
20
25
30
35
40
45
50
Overdrive (%V
IT
)
Figure 5.
NORMALIZED SENSE THRESHOLD VOLTAGE (V
IT
)
vs
TEMPERATURE
1.0
0.8
0.6
Normalized V
IT
(%)
0.4
0.2
0
−0.2
−0.4
−0.6
−0.8
−1.0
−50
−30
−10
10
30
50
70
90
110
130
Temperature (°C)
V
OL
Low−Level RESET Voltage (V)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
0.5
1.0
Figure 6.
LOW-LEVEL RESET VOLTAGE
vs
RESET CURRENT
V
DD
= 1.8V
1.5
2.0
2.5
RESET Current (mA)
3.0
3.5
4.0
Figure 7.
6
Product Folder Link(s):
Figure 8.
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