LTC1726 データシートの表示（PDF） - Linear Technology
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LTC1726
Linear Technology
LTC1726 Datasheet PDF : 14 Pages
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Typical Performance Characteristics
LTC1726
IVCC25 vs Temperature
(LTC1726-2.5)
1.5
VCC3 = 3.3V
1.4 VCC25 = 2.5V
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
–60 –40 –20 0 20 40 60
TEMPERATURE (°C)
80 100
1726 G07
VCCA Input Current
vs Input Voltage
2.0
TA = 25°C
1.5
1.0
0.5
0
– 0.5
–1.0
–1.5
– 2.0
0.80 0.85 0.90 0.95 1 1.05 1.10 1.15 1.20
INPUT VOLTAGE (V)
1726 G14
Watchdog Time-Out Period vs
Capacitance
1000
TA = 25°C
100
10
1
100m
10m
1m
100
1p
10p 100p 1n 10n 100n
CWT (FARAD)
1 10
1726 G12
IVCC3 vs Temperature
(LTC1726-2.5)
20
19
VCC3 = 3.3V
VCC25 = 2.5V
18
17
16
15
14
13
12
11
10
–60 –40 –20 0 20 40 60
TEMPERATURE (°C)
80 100
1726 G08
Watchdog Time-Out Period
vs Temperature
40
CWT = 1500pF
(SILVER MICA)
38
36
34
32
30
28
26
–60 –40 –20 0 20 40 60
TEMPERATURE (°C)
80 100
1726 G10
Typical Transient Duration
vs Comparator Overdrive
700
TA = 25°C
600
500
400
RESET OCCURS
ABOVE CURVE
300
200
100
0
0.1
1
10
100
RESET COMPARATOR OVERDRIVE VOLTAGE (% OF VCC)
1726 G09
Reset Pulse Width vs
Temperature
6.0
CRT = 1500pF
5.8 (SILVER MICA)
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
–60 –40 –20 0 20 40 60
TEMPERATURE (°C)
80 100
1726 G11
Reset Time-Out Period vs
Capacitance
100
TA = 25°C
10
1
100m
10m
1m
100
10
1p
10p 100p 1n 10n 100n
CRT (FARAD)
1 10
1726 G15
RST Output Voltage vs
Supply Voltage (LTC1726-2.5)
VCC3 = VCC25 = VCCA
3
10k PULL-UP FROM VCC3 TO RST
TA = 25°C
2
1
0
0
1
2
3
VCC3 (V)
1726 F13
For more information www.linear.com/LTC1726
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