Micrel, Inc.
MIC2790/1/3
Typical Characteristics
Supply Current
vs. Supply Voltage
80
Reset Timeout Delay
vs. Supply Voltage
1.4
1.6
Reset Timeout Delay
vs. Supply Voltage
SUPPLY CURRENT (µA)
RESET TIMEOUT DELAY (s)
70
125°C
60
50
40
30
-40°C
20
RESET NOT ASSERTED
RESET not asserted
10
1
2
3
4
5
6
25°C
85°C
RESET TIMEOUT DELAY (ms)
1.2
1.4
1.2
1
0.8
0.6
C
TH
= 180nF
0.4
1
0.8
0.6
C
TH
= 100pF
0.4
1
2
3
4
5
6
1
2
3
4
5
6
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
Reset Timeout Delay
vs. C
TH
100000
1.7
Reset Timeout Delay
vs. Temperature
1.8
Reset Timeout Delay
vs. Temperature
RESET TIMEOUT DELAY (s)
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
0.9
0.8
0.7
0.6
120
-40
-20
0
20
40
60
80
100
120
V
DD
= 3.3V
C
TH
= 180nF
RESET TIMEOUT DELAY (ms)
RESET TIMEOUT DELAY (ms)
1.6
1.5
1.4
1.3
1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
-40
-20
0
20
40
60
V
DD
= 3.3V
C
TH
= 100pF
80
100
10000
1000
100
10
1
V
DD
= 3.3V
0.1
0.01
0.1
1
10
100
1000 10000
CTH (nF)
TEMPERATURE (°C)
TEMPERATURE (°C)
Normalized SNS Threshold
vs. Supply Voltage
NORMALIZED SNS THRESHOLD (%)
NORMALIZED SNS THRESHOLD (%)
1.0%
0.8%
0.6%
0.4%
0.2%
0.0%
-0.2%
-0.4%
-0.6%
-0.8%
-1.0%
1
2
3
4
5
6
SNS FALLING
SNS RISING
1.0%
0.8%
0.6%
0.4%
0.2%
0.0%
-0.2%
-0.4%
-0.6%
-0.8%
-1.0%
-40
Normalized SNS Threshold
vs. Temperature
400
C
TH
Charging Current
vs. Supply Voltage
CTH CHARGING CURRENT (nA)
120
350
SNS FALLING
300
250
SNS RISING
200
150
V
DD
= 3.3V
-20
0
20
40
60
80
100
100
1
2
3
4
5
6
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
August 23, 2013
6
Revision 1.0
MICREL [ MICREL SEMICONDUCTOR ]
