+

VS

OPA313

INA303

GND

OUT

ALERT2

IN+

IN-

+

LATCH1

RLIMIT2

LIMIT2

ALERT1

VS

2.7 V to 5.5 V

DELAY

RLIMIT1

LIMIT1

LATCH2

REF

RPULL-UP

ILIMIT1

ILIMIT2

CBYPASS

0.1 µF

10 k:

RD

100 k:

RSENSE

Bidirectional

Current Monitoring

R1

100 k:

R2

100 k:

CBYP

0.1 µF

CFLT

0.1 PF

System

Alert

Current

Sense

-

+

+

-

GND

(+)

29

INA302, INA303

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SBOS775C – SEPTEMBER 2016 – REVISED MARCH 2019

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8.2 Typical Application

The INA30x are designed to be easily configured for detecting multiple out-of-range current conditions in an

application. These devices are capable of monitoring and providing overcurrent detection of bidirectional

currents. By using the REF pin of the INA303, both positive and negative overcurrent events can be detected.

Figure 52. Bidirectional Application