´

Power Register

Current Register

I C

2

Interface

Voltage Register

INA230

GND

BUS

ADC

V

I

A0

A1

ALERT

SDA

SCL

C

0.1 F

BYPASS

m

High-

Side

Shunt

Low-

Side

Shunt

Load

Alert Register

V

(Supply Voltage)

S

Power Supply

(0 V to 28 V)

INA230

www.ti.com

SBOS601

– FEBRUARY 2012

High- or Low-Side Measurement,

™ Interface

Check for Samples: INA230

1

FEATURES

DESCRIPTION

The INA230 is a current-shunt and power monitor

23

•

Bus Voltage Sensing From 0 V to +28 V

•

High- or Low-Side Sensing

addresses. The INA230 monitors both shunt voltage

•

Current, Voltage, and Power Reporting

drops

and

bus

supply

voltage.

Programmable

calibration value, conversion times, and averaging,

•

High Accuracy:

combined with an internal multiplier, enable direct

– 0.5% Gain Error (Max)

readouts of current in amperes and power in watts.

– 50-μV Offset (Max)

The INA230 senses current on buses that vary from 0

•

Configurable Averaging Options

V to +28 V, with the device powered from a single

•

Programmable Alert Threshold

+2.7 V to +5.5 V supply, drawing 330

μA (typical) of

supply current. The INA230 is specified over the

•

Power Supply Operation: 2.7 V to 5.5 V

operating temperature range of

–40°C to +125°C.

•

Package: 3-mm x 3-mm, 16-Pin QFN

RELATED PRODUCTS

APPLICATIONS

DESCRIPTION

DEVICE

•

Smartphones

Current/power monitor with watchdog, peak-hold,

INA209

and fast comparator functions

•

Tablets

INA210, INA211,

Zer

ø-drift, low-cost, analog current shunt monitor

•

Servers

INA212, INA213,

series in small package

INA214

•

Computers

Zer

ø-drift, bidirectional current power monitor with

INA219

two-wire interface

•

Power Management

High or low side, bidirectional current/power monitor

•

Battery Chargers

INA220

with two-wire interface

•

Power Supplies

•

Test Equipment

HIGH-OR LOW-SIDE SENSING

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright

© 2012, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.