LTC1443CN(RevA) Ver la hoja de datos (PDF) - Linear Technology
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fabricante
LTC1443CN Datasheet PDF : 12 Pages
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LTC1443/LTC1444/LTC1445
TYPICAL PERFOR A CE CHARACTERISTICS
LTC1444/LTC1445
Hysteresis Control
80
60
40
20
Supply Current vs Supply Voltage
5.2
TA = 25°C
5.0
4.8
0
4.6
–20
4.4
–40
4.2
–60
–80
0
10
20
30
40
50
VREF – VHYST (mV)
LTC1443/44/45 • TPC01
4.0
1.0
1.5
2.0
2.5
3.0
SUPPLY VOLTAGE (V)
LTC1443/44/45 • TPC02
LTC1444/LTC1445 Reference
Voltage vs Temperature
1.224 V+ = 5V
1.220
LTC1443 Reference Voltage
vs Temperature
1.186
V+ = 5V
1.184 V– = GND
1.182
1.216
1.180
1.178
1.212
1.176
1.174
1.172
1.208
–60 –40 –20 0 20 40 60 80 100 120
TEMPERATURE (°C)
LTC1443/44/45 • TPC04
1.170
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
LTC1443/44/45 • TPC05
LTC1443 Reference Output
Voltage vs Output Load Current
1.194
1.192
1.190
V+ = 5V
V– = GND
TA = 25°C
Comparator Output Voltage High
vs Load Current
5.0
TA = 25°C
V+ = 5V
4.0
1.188
1.186
1.184
1.182
SINK
3.0
V+ = 3V
2.0
V+ = 2V
1.180
0 5 10 15 20 25 30 35 40 45
LOAD CURRENT (µA)
LTC1443/44/45 • TPC07
1.0
0
10 20 30 40 50 60
LOAD CURRENT (mA)
LTC1443/44/45 • TPC08
Supply Current vs Temperature
5.8
IN+ = (IN– + 100mV)
5.4 V– = GND (LTC1443)
5.0
V+ = 5V
V– = 0V
4.6
V+ = 5V
V– = –5V
4.2
3.8
V+ = 3V
V– = 0V
3.4
3.0
–60 –40 –20 0 20 40 60 80 100 120
TEMPERATURE (°C)
LTC1443/44/45 • TPC03
LTC1443 Reference Output
Voltage vs Output Load Current
1.184
1.183
V+ = 5V
V– = GND
TA = 25°C
1.182
1.181
1.180
SOURCE
1.179
1.178
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
LOAD CURRENT (mA)
LTC1443/44/45 • TPC06
Comparator Output Voltage Low
vs Load Current
2.5
TA = 25°C
2.0
1.5 V+ = 2V
1.0
V+ = 3V
V+ = 5V
0.5
0
0 10 20 30 40 50 60 70 80
LOAD CURRENT (mA)
LTC1443/44/45 • TPC09
4
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