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LTC1726 Datasheet(PDF) 4 Page - Linear Technology

Part No. LTC1726
Description  Triple Supply Monitor and uP Supervisor with Adjustable Reset and Watchdog Timer
Download  12 Pages
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LTC1726 Datasheet(HTML) 4 Page - Linear Technology

 
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LTC1726
VCC25 Threshold Voltage
vs Temperature
IVCC5 vs Temperature
TYPICAL PERFOR A CE CHARACTERISTICS
TEMPERATURE (
°C)
–60
0
40
100
1726 G04
2.300
2.315
2.330
2.345
2.360
2.375
–40 –20
20
60
80
TEMPERATURE (
°C)
–60
10
11
13
14
15
20
17
–20
20
40
1726 G05
12
18
19
16
–40
0
60
80
100
VCC5 = 5V
VCC3 = 3.3V
IVCC3 vs Temperature (LTC1726-5)
TEMPERATURE (
°C)
–60
0.5
0.6
0.8
0.9
1.0
1.5
1.2
–20
20
40
1726 G06
0.7
1.3
1.4
1.1
–40
0
60
80
100
VCC5 = 5V
VCC3 = 3.3V
IVCC25 vs Temperature
(LTC1726-2.5)
IVCC3 vs Temperature
(LTC1726-2.5)
Typical Transient Duration
vs Comparator Overdrive
TEMPERATURE (
°C)
–60
0.5
0.6
0.8
0.9
1.0
1.5
1.2
–20
20
40
1726 G07
0.7
1.3
1.4
1.1
–40
0
60
80
100
VCC3 = 3.3V
VCC25 = 2.5V
TEMPERATURE (
°C)
–60
10
11
13
14
15
20
17
–20
20
40
1726 G08
12
18
19
16
–40
0
60
80
100
VCC3 = 3.3V
VCC25 = 2.5V
RESET COMPARATOR OVERDRIVE VOLTAGE (% OF VCC)
0.1
400
500
600
700
1
10
100
1726 G09
300
200
100
0
RESET OCCURS
ABOVE CURVE
TA = 25°C
Watchdog Time-Out Period
vs Temperature
Reset Pulse Width vs Temperature
TEMPERATURE (
°C)
–60 –40
34
36
38
60
80
1726 G10
32
30
–20
0
20
40
100
28
26
40
CWT = 1500pF
TEMPERATURE (
°C)
–60
4.0
4.2
4.6
4.8
5.0
6.0
5.4
–20
20
40
1726 G11
4.4
5.6
5.8
5.2
–40
0
60
80
100
CRT = 1500pF
VCCA Input Current
vs Input Voltage
INPUT VOLTAGE (V)
0.80 0.85
0.95
1.05
1.15
0
1.0
1.20
1726 G14
–1.0
– 2.0
– 0.5
–1.5
0.90
1
1.10
2.0
0.5
1.5
TA = 25°C


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