u

Power Register

Current Register

Voltage Register

Alert Register

I

2C or SMBus

Compatible

Interface

VBUS

ADC

V

I

A0

A1

ALERT

SDA

SCL

C

0.1 PF

BYPASS

Load

VS

(Supply Voltage)

Power Supply

(0 V to 36 V)

IN+

GND

IN-

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

INA260

SBOS656C – JULY 2016 – REVISED DECEMBER 2016

INA260

Precision Digital Current and Power Monitor With Low-Drift, Precision Integrated Shunt

1

1 Features

1

•

Precision Integrated Shunt Resistor:

–

Current Sense Resistance: 2 mΩ

–

Tolerance Equivalent to 0.1%

–

15-A Continuous From –40°C to +85°C

–

10 ppm/°C Temperature Coefficient

(0°C to +125°C )

•

Senses Bus Voltages From 0 V to 36 V

•

High-Side or Low-Side Sensing

•

Reports Current, Voltage, and Power

•

High Accuracy:

–

0.15% System Gain Error (Maximum)

–

5-mA Offset (Maximum)

•

Configurable Averaging Options

•

16 Programmable Addresses

•

Operates From a 2.7-V to 5.5-V Power Supply

•

16-Pin, TSSOP Package

2 Applications

•

Test Equipment

•

Servers

•

Telecom Equipment

•

Computing

•

Power Management

•

Battery Chargers

•

Power Supplies

3 Description

The INA260 is a digital-output, current, power, and

voltage monitor with an I2C and SMBus™-compatible

interface with an integrated precision shunt resistor. It

enables

high-accuracy

current

and

power

measurements

and

over-current

detection

at

common-mode voltages that can vary from 0 V to 36

V, independent of the supply voltage. The device is a

bidirectional, low- or high-side, current-shunt monitor

that measures current flowing through the internal

current-sensing

resistor.

The

integration

of

the

precision

current-sensing

resistor

provides

calibration-equivalent measurement accuracy with

ultra-low temperature drift performance and ensures

that an optimized Kelvin layout for the sensing

resistor is always obtained.

The

INA260

features

up

to

16

programmable

addresses on the I2C-compatible interface. The digital

interface

allows

programmable

alert

thresholds,

analog-to-digital converter (ADC) conversion times,

and averaging. To facilitate ease of use, an internal

multiplier enables direct readouts of current in

amperes and power in watts.

The device operates from a single 2.7-V to 5.5-V

supply, drawing 310 μA (typical) of supply current.

The

INA260

is

specified

over

the

operating

temperature range between –40°C and +125°C and

is available in the 16-pin TSSOP package.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

INA260

TSSOP (16)

5.00 mm x 4.40 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

High-Side Sensing Application