LTC1726 LINER [Linear Technology], LTC1726 Datasheet - Page 4

• Manufacturer Part Number: LTC1726
• Description: Triple Supply Monitor and uP Supervisor with Adjustable Reset and Watchdog Timer
• Manufacturer: LINER [Linear Technology]

LTC1726
TYPICAL PERFOR A CE CHARACTERISTICS
4
2.375
2.360
2.345
2.330
2.315
2.300
– 0.5
– 2.0
–1.0
–1.5
1.1
0.5
1.5
1.4
1.3
1.2
1.0
0.9
0.8
0.7
0.6
2.0
1.5
1.0
0.5
0
0.80 0.85
–60
–60
V
vs Temperature
I
(LTC1726-2.5)
V
vs Input Voltage
VCC25
V
V
T
CCA
CC25
CC3
CC25
A
–40
–40 –20
= 25 C
= 3.3V
Input Current
= 2.5V
Threshold Voltage
vs Temperature
–20
0.90
TEMPERATURE ( C)
TEMPERATURE ( C)
INPUT VOLTAGE (V)
0.95
0
0
20
20
1
1.05
40
40
1.10
W
60
60
1.15
80
80
1726 G04
1726 G14
1726 G07
U
1.20
100
100
16
10
20
19
18
17
15
14
13
12
11
20
19
18
17
16
15
14
13
12
10
40
38
34
26
11
36
32
30
28
–60
I
(LTC1726-2.5)
–60 –40
–60
VCC3
V
V
I
Watchdog Time-Out Period
vs Temperature
CC3
CC25
VCC5
V
V
C
–40
CC5
CC3
WT
–40
= 3.3V
= 2.5V
vs Temperature
= 1500pF
= 5V
= 3.3V
vs Temperature
–20
–20
–20
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
0
0
0
20
20
20
40
40
40
60
60
60
80
1726 G08
80
80
1726 G05
1726 G10
100
100
100
700
600
500
400
300
200
100
RESET COMPARATOR OVERDRIVE VOLTAGE (% OF V
0
0.1
5.2
4.0
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.5
6.0
5.8
5.6
5.4
5.0
4.8
4.6
4.4
4.2
0.6
Typical Transient Duration
vs Comparator Overdrive
T
–60
–60
A
I
Reset Pulse Width vs Temperature
VCC3
V
V
= 25 C
C
CC5
CC3
RT
–40
–40
= 1500pF
= 5V
= 3.3V
vs Temperature (LTC1726-5)
–20
–20
1
TEMPERATURE ( C)
TEMPERATURE ( C)
RESET OCCURS
ABOVE CURVE
0
0
20
20
10
40
40
60
60
1726 G09
80
80
1726 G06
1726 G11
100
100
100
CC
)