Load

Power Supply

(0 V to 36 V)

Current

OCP+

OCP-

Output

VS

GND

OUT

ALERT

IN+

IN-

2.7 V to 5.5 V

RPULL-UP

10 k

RLIMIT

CBYPASS

0.1 PF

LIMIT

VS

GND

OUT

ALERT

IN+

IN-

2.7 V to 5.5 V

RPULL-UP

10 k

RLIMIT

CBYPASS

0.1 PF

LIMIT

+

+

21

INA301

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SBOS713A – SEPTEMBER 2015 – REVISED FEBRUARY 2016

Product Folder Links: INA301

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Copyright © 2015–2016, Texas Instruments Incorporated

8 Applications and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

The INA301 is designed to enable easy configuration for detecting overcurrent conditions in an application. This

device is individually targeted towards unidirectional overcurrent detection of a single threshold. However, this

device can also be paired with additional devices and circuitry to create more complex monitoring functional

blocks.

8.2 Typical Application

Figure 42. Bidirectional Application

8.2.1 Design Requirements

Although the device is only able to measure current through a current-sensing resistor flowing in one direction, a

second INA301 can be used to create a bidirectional monitor.