LTC1445CS datasheet(5/14 Pages) LINER

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LTC1443/LTC1444/LTC1445

144345fe

Typical perForMance characTerisTics

Supply Current vs Supply Voltage

Supply Current vs Temperature

LTC1444/LTC1445 Reference

Voltage vs Temperature

LTC1443 Reference Voltage

vs Temperature

LTC1443 Reference Output

Voltage vs Output Load Current

LTC1444/LTC1445

Hysteresis Control

VREF – VHYST (mV)

–20

144345 G01

–40

–60

–80

SUPPLY VOLTAGE (V)

1.0

4.0

4.2

4.4

4.6

4.8

5.0

5.2

1.5

2.0

2.5

3.0

144345 G02

TA = 25°C

TEMPERATURE (°C)

–60

5.8

5.4

5.0

4.6

4.2

3.8

3.4

3.0

144345 G03

–20

–40

80 100 120

IN+ = (IN– + 100mV)

V– = GND (LTC1443)

V+ = 3V

V– = 0V

V+ = 5V

V– = 0V

V+ = 5V

V– = –5V

TEMPERATURE (°C)

–60

1.208

1.212

1.216

1.220

1.224

–40 –20 0

144345 G04

40 60 80 100 120

V+ = 5V

TEMPERATURE (°C)

–60

1.186

1.184

1.182

1.180

1.178

1.176

1.174

1.172

1.170

100

144345 G05

–20

60 80

–40

120 140

V+ = 5V

V– = GND

LOAD CURRENT (mA)

1.184

1.183

1.182

1.181

1.180

1.179

1.178

0.2

0.4

0.6

0.8

144345 G06

1.0

0.1

0.3

0.5

0.7

0.9

V+ = 5V

V– = GND

TA = 25°C

SOURCE

LTC1443 Reference Output

Voltage vs Output Load Current

Comparator Output Voltage High

vs Load Current

Comparator Output Voltage Low

vs Load Current

LOAD CURRENT (µA)

1.194

1.192

1.190

1.188

1.186

1.184

1.182

1.180

144345 G07

35 40 45

V+ = 5V

V– = GND

TA = 25°C

SINK

LOAD CURRENT (mA)

1.0

2.0

3.0

4.0

5.0

144345 G08

V+ = 5V

V+ = 3V

V+ = 2V

TA = 25°C

LOAD CURRENT (mA)

1.5

2.0

2.5

144345 G09

1.0

0.5

V+ = 2V

V+ = 3V

V+ = 5V

TA = 25°C

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