MAX4373/MAX4374/MAX4375

Low-Cost, Micropower, High-Side

Current-Sense Amplifier +

Comparator + Reference ICs

Maxim Integrated | 7

www.maximintegrated.com

VCC

OUTPUT

100

μs/div

0

2V

6V

0

POWER-UP DELAY

MAX4373 toc19

AV = +20V/V

OUTPUT

VCC

5V

5V

0

0

COMPARATOR POWER-UP DELAY

MAX4373 toc20

VCC = VPULL-UP

10µs/div

590

593

592

591

594

595

596

597

598

599

600

010

5

15202530

COMPARATOR TRIP POINT vs.

SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

INPUT

125mV/div

OUTPUT

2.5V/div

2

μs/div

COMPARATOR PROPAGATION DELAY

VOD = 5mV

2

2.4

2.2

2.8

3.0

2.6

3.4

3.6

3.2

3.8

080

40

120

160

20

100

60

140

180 200

COMPARATOR PROPAGATION DELAY

vs. OVERDRIVE VOLTAGE

OVERDRIVE VOLTAGE (mV)

0

2

1

4

3

6

5

7

-50

-10

10

-30

30507090

COMPARATOR PROPAGATION DELAY

vs. TEMPERATURE

TEMPERATURE (°C)

VOD = 5mV

Typical Operating Characteristics (continued)

(VRS+ = +12V, VCC = +12V, RLOAD = 1MΩ, VRESET = 0V, VSENSE = 100mV, VPULL-UP = +5V, RPULL-UP = 10kΩ, TA = +25°C, unless

otherwise noted.)