INA260 Datasheet, PDF (1/30 Pages) Texas Instruments – Precision Digital Current and Power Monitor with Low-Drift, Precision Integrated Shunt

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INA260
SBOS656A – JULY 2016 – REVISED AUGUST 2016
INA260
Precision Digital Current and Power Monitor with Low-Drift, Precision Integrated Shunt
1 Features
•1 Precision Integrated Shunt Resistor:
– 15-A Continuous from –40°C to +85°C
– 0°C to +125°C Temperature Coefficient:
– 10 ppm/°C
• Senses Bus Voltages From 0 V to 36 V
• High-Side or Low-Side Sensing
• Reports Current, Voltage, and Power
• High Accuracy:
– 0.1% Gain Error (max)
– 5-mA Offset (max)
• Configurable Averaging Options
• 16 Programmable Addresses
• Operates from a 2.7-V to 5.5-V Power Supply
• 16-Pin, TSSOP Package
2 Applications
• Servers
• Telecom Equipment
• Computing
• Power Management
• Battery Chargers
• Power Supplies
• Test Equipment
3 Description
The INA260 is an integrated shunt, digital-output,
current, power, and voltage monitor with an I²C or
SMBus™-compatible interface. This device integrates
an precision shunt resistor to enable high-accuracy
current and power measurements 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 in both directions through
the internal current-sensing resistor sensor. 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 330 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.
Power Supply
(0 V to 36 V)
High-Side Sensing Application
C _BYPASS
0.1 PF
IN+
VBUS
V
ADC
I
IN-
Load
GND
TI Device
u
Power Register
Current Register
Voltage Register
Alert Register
VS
(Supply Voltage)
I²C- or SMBus-
Compatible
Interface
SDA
SCL
Alert
A0
A1
Copyright © 2016, Texas Instruments Incorporated
1
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. PRODUCT PREVIEW Information. Product in design phase of
development. Subject to change or discontinuance without notice.