Top

Product details

Parameters

Common mode voltage (Max) (V) 28 Common mode voltage (Min) (V) 0 Input offset (+/-) (Max) (uV) 50 Input offset drift (+/-) (Typ) (uV/C) 0.1 Gain (V/V) 1 Gain error (%) 0.5 Gain error drift (+/-) (Max) (ppm/°C) 50 CMRR (Min) (dB) 100 Bandwidth (kHz) 3.5 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 0.42 Digital interface I2C, SMBus Features Alert Function, Bi-directional, Low-side Capable Resolution (Bits) 16 Rating Catalog Operating temperature range (C) -40 to 125 open-in-new Find other Current/voltage/power monitors

Package | Pins | Size

VQFN (RGT) 16 9 mm² 3 x 3 open-in-new Find other Current/voltage/power monitors

Features

  • Bus Voltage Sensing From 0 V to +28 V
  • High- or Low-Side Sensing
  • Current, Voltage, and Power Reporting
  • High Accuracy:
    • 0.5% Gain Error (Max)
    • 50-µV Offset (Max)
  • 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
open-in-new Find other Current/voltage/power monitors

Description

The INA230 is a current-shunt and power monitor 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.

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.

open-in-new Find other Current/voltage/power monitors
Download

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 15
Type Title Date
* Datasheet Bidirectional Current/Power Monitor with I²C™ Interface datasheet Feb. 10, 2012
Application notes Precision, Low-Side Current Measurement (Rev. B) Mar. 06, 2019
Application notes External current sense amps vs integrated onboard amplifiers for current sensing (Rev. B) Feb. 19, 2019
Technical articles A key to accurate system thermal management: monitoring both current flow and temperature Oct. 04, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
User guides –48-V Telecom Current, Voltage, and Power Sense With Isolation Reference Design (Rev. A) Sep. 28, 2017
Application notes Digital Interfaces for Current Sensing Devices Jun. 30, 2017
Technical articles System trade-offs for high- and low-side current measurements Jun. 01, 2017
Application notes Integrated, Current Sensing Analog-to-Digital Converter Dec. 21, 2016
Application notes Integrating The Current Sensing Signal Path (Rev. A) Dec. 02, 2016
Technical articles Why should you care about overcurrent protection in your system? Jun. 16, 2016
White papers Overcurrent protection enables more efficient and reliable systems May 16, 2016
Application notes Understanding the I2C Bus Jun. 30, 2015
Technical articles How to get started with current sense amplifiers – part 2 May 26, 2015
User guides INA230EVM Evaluation Board and Software Tutorial Mar. 16, 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
75
Description
The INA230EVM is a platform for evaluating the performance of the INA230 under various signal, shunt, and supply conditions.
Features
  • USB Power and I/O
  • Small Form Factor
  • Simple Software Interface
  • GUIS FOR EVALUATION MODULES (EVM) Download
    SBOC421.ZIP (102246 KB)

    Design tools & simulation

    SIMULATION MODELS Download
    SBOM750.ZIP (34 KB) - IBIS Model
    SIMULATION TOOLS Download
    PSpice® for TI design and simulation tool
    PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
    Features
    • Leverages Cadence PSpice Technology
    • Preinstalled library with a suite of digital models to enable worst-case timing analysis
    • Dynamic updates ensure you have access to most current device models
    • Optimized for simulation speed without loss of accuracy
    • Supports simultaneous analysis of multiple products
    • (...)
    SIMULATION TOOLS Download
    SPICE-based analog simulation program
    TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
    document-generic User guide

    Reference designs

    REFERENCE DESIGNS Download
    Smart Thermostat Localized Heat Compensation for Ambient Temperature Sensing Reference Design
    TIDA-01596 — Localized thermostat heat generation is a leading cause for incorrect ambient temperature sensing near the return air plenum. This ultimately leads to overshoot in the HVAC cycle, resulting in costly energy bills. This reference design addresses this common problem associated with thermostat design (...)
    document-generic Schematic document-generic User guide

    CAD/CAE symbols

    Package Pins Download
    VQFN (RGT) 16 View options

    Ordering & quality

    Support & training

    TI E2E™ forums with technical support from TI engineers

    Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

    If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

    Videos

    Related videos