LTC2901-2IGN データシートの表示（PDF） - Linear Technology
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LTC2901-2IGN
Linear Technology
LTC2901-2IGN Datasheet PDF : 16 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
Watchdog Time-Out Period
vs Capacitance
100 TA = 25°C
10
1
100m
10m
1m
10p
100p
1n 10n
CWT (FARAD)
100n 1µ
2901 G17
RST, WDO, COMPX Voltage
Output Low vs Output Sink Current
3.0
V2 = 3V
V1 = 5V
2.5
85°C
25°C
– 40°C
2.0
1.5
1.0
0.5
0
0 10 20 30 40 50 60 70 80 90
ISINK (mA)
2901 G20
COMPX Propagation Delay vs Input
Overdrive Above Threshold
250
TA = 25°C
200
150
100
V1, V2
50
V3, V4
0
10
100
1000
INPUT OVERDRIVE ABOVE THRESHOLD (mV)
2901 G25
Reset Time-Out Period
vs Capacitance
10 TA = 25°C
1
100m
10m
1m
100µ
10p
100p
1n 10n
CRT (FARAD)
100n 1µ
2901 G18
RST High Level Output Voltage
vs Output Source Current
(LTC2901-2/LTC2901-4)
3.5
V1 = 5V
V2 = 3V
3.0
V3 = 2.5V
V4 = 1V
2.5
2.0
– 40°C
1.5
25°C
1.0
85°C
0.5
0
0
0.5
1
1.5
2
2.5
ISOURCE (mA)
2901 G21
RST Pull-Up Current vs V2
(LTC2901-1/LTC2901-3)
20 TA = 25°C
18
16
14
12
10
8
6
VRT33
4
VRT30
VRT25
2
0
2 2.5 3 3.5 4 4.5 5
V2 (V)
2901 G26
Downloaded from: http://www.datasheetcatalog.com/
LTC2901
RST, WDO, COMPX ISINK
vs Supply Voltage
10
TA = 25°C
9
8
VOL = 0.4V
7
6
5
4
3
VOL = 0.2V
2
1
0
0
1
2
3
4
5
6
V1 OR V2 (V)
2901 G19
COMPX and WDO Pull-Up
Current vs V2 (COMPX and
WDO Held at 0V)
20 TA = 25°C
18
16
14
12
10
8
6
4
2
0
1 1.5 2 2.5 3 3.5 4 4.5 5
V2 (V)
2901 G24
RST Pull-Up Current vs V2
(LTC2901-2/LTC2901-4)
6 TA = 25°C
5
4
3
2
VRT33
VRT30
VRT25
1
0
2 2.5 3 3.5 4 4.5 5
V2 (V)
2901 G27
2901fb
7
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