Low-Cost, Micropower, High-Side Current-Sense

Amplifier + Comparator + Reference ICs

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7

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

OUTPUT

100

µs/div

0

2V

6V

0

POWER-UP DELAY

MAX4373 toc19

OUTPUT

5V

5V

0

0

COMPARATOR POWER-UP DELAY

MAX4373 toc20

10µs/div

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)

Typical Operating Characteristics (continued)

otherwise noted.)

0

2

1

4

3

6

5

7

-50

-10

10

-30

30

50

70

90

COMPARATOR PROPAGATION DELAY

vs. TEMPERATURE

TEMPERATURE (°C)