INA230
www.ti.com
SBOS601 –FEBRUARY 2012
High- or Low-Side Measurement,
Bidirectional CURRENT/POWER MONITOR with I2C™ Interface
Check for Samples: INA230
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FEATURES
DESCRIPTION
The INA230 is a current-shunt and power monitor
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Bus Voltage Sensing From 0 V to +28 V
High- or Low-Side Sensing
with an I2C interface that features 16 programmable
addresses. The INA230 monitors both shunt voltage
drops and bus supply voltage. Programmable
calibration value, conversion times, and averaging,
combined with an internal multiplier, enable direct
readouts of current in amperes and power in watts.
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Current, Voltage, and Power Reporting
High Accuracy:
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0.5% Gain Error (Max)
50-μV Offset (Max)
The INA230 senses current on buses that vary from 0
V to +28 V, with the device powered from a single
+2.7 V to +5.5 V supply, drawing 330 μA (typical) of
supply current. The INA230 is specified over the
operating temperature range of –40°C to +125°C.
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Configurable Averaging Options
Programmable Alert Threshold
Power Supply Operation: 2.7 V to 5.5 V
Package: 3-mm x 3-mm, 16-Pin QFN
RELATED PRODUCTS
DESCRIPTION
APPLICATIONS
DEVICE
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Smartphones
Tablets
Current/power monitor with watchdog, peak-hold,
and fast comparator functions
INA209
INA210, INA211,
INA212, INA213,
INA214
Zerø-drift, low-cost, analog current shunt monitor
series in small package
Servers
Computers
Zerø-drift, bidirectional current power monitor with
two-wire interface
INA219
INA220
Power Management
Battery Chargers
Power Supplies
Test Equipment
High or low side, bidirectional current/power monitor
with two-wire interface
HIGH-OR LOW-SIDE SENSING
Power Supply
(0 V to 28 V)
CBYPASS
0.1 mF
VS
BUS
High-
Side
Shunt
(Supply Voltage)
INA230
SDA
SCL
Power Register
Current Register
Voltage Register
Alert Register
´
Load
V
I
I2C
Interface
ADC
Low-
Side
Shunt
ALERT
A0
A1
GND
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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.
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I2C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated