LTC1540CS8 datasheet(4/12 Pages) LINER

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LTC1540

sn1540 1540fas

TYPICAL PERFORMANCE CHARACTERISTICS

TEMPERATURE (°C)

–60

0.2

0.5

–20

1540 G01

0.1

0.4

0.3

–40

100

V + = 5V

V – = GND = 0V

V + = 2V

V – = GND = 0V

V + = 3V

V – = GND = 0V

Supply Current vs Temperature

Reference Voltage

Load Regulation (Source)

OUTPUT SOURCE CURRENT (mA)

1540 G04

V + = 5V

V – = GND = 0V

TA = 25°C

Comparator Short-Circuit Current

vs Supply Voltage

SUPPLY VOLTAGE (V)

120

160

200

1540 G07

100

140

180

TA = 25°C

OUTPUT

CONNECTED TO

V – = GND = 0V;

SOURCE

CURRENT

OUTPUT

CONNECTED

TO V +; SINK

CURRENT

VREF – VHYST (mV)

–20

–40

–60

–80

1540 G09

Hysteresis Control

Comparator Output Voltage (Low)

vs Load Current

LOAD CURRENT (mA)

1.0

2.5

1540 G06

0.5

2.0

1.5

TA = 25°C

V+ = 5V

V+ = 3V

V+ = 2V

Reference Voltage

Load Regulation (Sink)

OUTPUT SINK CURRENT (µA)

1540 G03

515

V + = 5V

V – = GND = 0V

TA = 25°C

TEMPERATURE (°C)

–60

1.182

1.184

1.186

100

1540 G02

1.180

1.178

1.172

–40

020

–20

1.174

1.176

1.190

1.188

V + = 5V

V – = GND = 0V

Reference Voltage vs Temperature

Comparator Output Voltage (High)

vs Load Current

LOAD CURRENT (mA)

1540 G05

TA = 25°C

V+ = 5V

V+ = 3V

V+ = 2V

Comparator Response Time

vs Input Overdrive

INPUT VOLTAGE (mV)

1540 G08

100 110

TA = 25°C

V+ = 5V

V – = GND = 0V

tPLH

tPHL

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