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INA228-Q1

활성

AEC-Q100, 85V, 20비트, 초정밀 I²C 출력 전류/전압/전원/에너지/충전 모니터

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INA228-Q1

활성
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제품 상세 정보

Common-mode voltage (max) (V) 85 Common-mode voltage (min) (V) -0.3 Digital interface I2C, SMBus Resolution (Bits) 20 Input offset (±) (max) (µV) 1 Input offset drift (±) (max) (µV/°C) 0.01 Input offset drift (±) (typ) (µV/°C) 0.002 Voltage gain (V/V) 1 CMRR (min) (dB) 154 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 1.1 Gain error (%) 0.05 Gain error drift (±) (max) (ppm/°C) 20 Features Alert Function, Bidirectional, Digital Temp Monitor, Integrated Power Accumulator, Integrated Power Monitor, Low-side Capable, Ultra precise Number of channels 1 Power measurement accuracy (%) 0.1 TI functional safety category Functional Safety-Capable Rating Automotive Operating temperature range (°C) -40 to 125
Common-mode voltage (max) (V) 85 Common-mode voltage (min) (V) -0.3 Digital interface I2C, SMBus Resolution (Bits) 20 Input offset (±) (max) (µV) 1 Input offset drift (±) (max) (µV/°C) 0.01 Input offset drift (±) (typ) (µV/°C) 0.002 Voltage gain (V/V) 1 CMRR (min) (dB) 154 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 1.1 Gain error (%) 0.05 Gain error drift (±) (max) (ppm/°C) 20 Features Alert Function, Bidirectional, Digital Temp Monitor, Integrated Power Accumulator, Integrated Power Monitor, Low-side Capable, Ultra precise Number of channels 1 Power measurement accuracy (%) 0.1 TI functional safety category Functional Safety-Capable Rating Automotive Operating temperature range (°C) -40 to 125
VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • High-resolution, 20-bit delta-sigma ADC
  • Current monitoring accuracy:
    • Offset voltage: ±1 µV (maximum)
    • Offset drift: ±0.01 µV/°C (maximum)
    • Gain error: ±0.05% (maximum)
    • Gain error drift: ±20 ppm/°C (maximum)
    • Common mode rejection: 154 dB (minimum)
  • Power monitoring accuracy:
    • 0.5% full scale, –40°C to +125°C (maximum)
  • Energy and charge accuracy:
    • 1.0% full scale (maximum)
  • Fast alert response: 75 µs
  • Wide common-mode range: –0.3 V to +85 V
  • Bus voltage sense input: 0 V to 85 V
  • Shunt full-scale differential range: ±163.84 mV / ±40.96 mV
  • Input bias current: 2.5 nA (maximum)
  • Temperature sensor: ±1°C (maximum at 25°C)
  • Programmable resistor temperature compensation
  • Programmable conversion time and averaging
  • 2.94-MHz high-speed I2C interface with 16 pin-selectable addresses
  • Operates from a 2.7-V to 5.5-V supply:
    • Operational current: 640 µA (typical)
    • Shutdown current: 5 µA (maximum)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • High-resolution, 20-bit delta-sigma ADC
  • Current monitoring accuracy:
    • Offset voltage: ±1 µV (maximum)
    • Offset drift: ±0.01 µV/°C (maximum)
    • Gain error: ±0.05% (maximum)
    • Gain error drift: ±20 ppm/°C (maximum)
    • Common mode rejection: 154 dB (minimum)
  • Power monitoring accuracy:
    • 0.5% full scale, –40°C to +125°C (maximum)
  • Energy and charge accuracy:
    • 1.0% full scale (maximum)
  • Fast alert response: 75 µs
  • Wide common-mode range: –0.3 V to +85 V
  • Bus voltage sense input: 0 V to 85 V
  • Shunt full-scale differential range: ±163.84 mV / ±40.96 mV
  • Input bias current: 2.5 nA (maximum)
  • Temperature sensor: ±1°C (maximum at 25°C)
  • Programmable resistor temperature compensation
  • Programmable conversion time and averaging
  • 2.94-MHz high-speed I2C interface with 16 pin-selectable addresses
  • Operates from a 2.7-V to 5.5-V supply:
    • Operational current: 640 µA (typical)
    • Shutdown current: 5 µA (maximum)

The INA228-Q1 is an ultra-precise digital power monitor with a 20-bit delta-sigma ADC specifically designed for current-sensing applications. The device can measure a full-scale differential input of ±163.84 mV or ±40.96 mV across a resistive shunt sense element with common-mode voltage support from –0.3 V to +85 V.

The INA228-Q1 reports current, bus voltage, temperature, power, energy and charge accumulation while employing a precision ±0.5% integrated oscillator, all while performing the needed calculations in the background. The integrated temperature sensor is ±1°C accurate for die temperature measurement and is useful in monitoring the system ambient temperature.

The low offset and gain drift design of the INA228-Q1 allows the device to be used in precise systems that do not undergo multi-temperature calibration during manufacturing. Further, the very low offset voltage and noise allow for use in mA to kA sensing applications and provide a wide dynamic range without significant power dissipation losses on the sensing shunt element. The low input bias current of the device permits the use of larger current-sense resistors, thus providing accurate current measurements in the micro-amp range.

The device allows for selectable ADC conversion times from 50 µs to 4.12 ms as well as sample averaging from 1x to 1024x, which further helps reduce the noise of the measured data.

The INA228-Q1 is an ultra-precise digital power monitor with a 20-bit delta-sigma ADC specifically designed for current-sensing applications. The device can measure a full-scale differential input of ±163.84 mV or ±40.96 mV across a resistive shunt sense element with common-mode voltage support from –0.3 V to +85 V.

The INA228-Q1 reports current, bus voltage, temperature, power, energy and charge accumulation while employing a precision ±0.5% integrated oscillator, all while performing the needed calculations in the background. The integrated temperature sensor is ±1°C accurate for die temperature measurement and is useful in monitoring the system ambient temperature.

The low offset and gain drift design of the INA228-Q1 allows the device to be used in precise systems that do not undergo multi-temperature calibration during manufacturing. Further, the very low offset voltage and noise allow for use in mA to kA sensing applications and provide a wide dynamic range without significant power dissipation losses on the sensing shunt element. The low input bias current of the device permits the use of larger current-sense resistors, thus providing accurate current measurements in the micro-amp range.

The device allows for selectable ADC conversion times from 50 µs to 4.12 ms as well as sample averaging from 1x to 1024x, which further helps reduce the noise of the measured data.
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다운로드 스크립트와 함께 비디오 보기 비디오

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
INA238-Q1 활성 AEC-Q100, 85V, 16비트, 고정밀, I²C 출력 전류/전압/충전 모니터 Reduced accuracy and reduced functionality for a lower price.
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
INA229-Q1 활성 AEC-Q100, 85V, 20비트, 초정밀 SPI 출력 전류/전압/전원/에너지/충전 모니터 Same functionality and performance but with a SPI interface.

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
12개 모두 보기
상위 문서 유형 직함 형식 옵션 날짜
* Data sheet INA228-Q1 AEC-Q100, 85-V, 20-Bit, Ultra-Precise Power/Energy/Charge Monitor With I2C Interface datasheet (Rev. A) PDF | HTML 2021/06/29
Application note Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 2024/11/18
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 2022/01/25
Application note Digital Interfaces for Current Sensing Devices (Rev. A) PDF | HTML 2021/09/30
Application brief Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 2021/09/29
Application brief Integrated, Current Sensing Analog-to-Digital Converter (Rev. A) PDF | HTML 2021/09/28
Application note Getting Started with Digital Power Monitors (Rev. A) PDF | HTML 2021/09/02
Technical article Solving the multidecade current-measurement challenge in your 48-V BMS application PDF | HTML 2021/06/14
Application brief Shunt-Based Current-Sensing Solutions for BMS Applications in HEVs and EVs (Rev. B) PDF | HTML 2021/02/02
Functional safety information INA2xx-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA 2020/11/02
Application brief Energy and Power Monitoring with Digital Current Sensors 2017/05/25
Application note Understanding the I2C Bus PDF | HTML 2015/06/30

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

INA228_237_238EVM — INA228, INA237 및 INA238 평가 모듈(EVM)

이 평가 모듈(EVM)은 INA228, INA237 또는 INA238의 주요 기능과 성능을 평가하기 위한 사용하기 쉬운 플랫폼입니다.

이 EVM은 최대 10A의 전류 측정을 지원하고 장치 레지스터를 읽고 쓰기 위한 GUI(그래픽 사용자 인터페이스) 지원을 제공합니다.

사용 설명서: PDF | HTML
View Options
드라이버 또는 라이브러리

INA228-WINDOWS-10-11-E3-DRIVER — INA228 Energy Estimation Engine (E3) Driver for Windows 10 and 11.

Energy Estimation Engine (E3) is a software framework that tracks and attributes power consumption to specific hardware components and software processes. It leverages the EMI (Energy Metering Interface) to report the energy consumption of various power rails.
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어
다운로드 옵션
IDE, 구성, 컴파일러 또는 디버거

ASC-STUDIO-INA228 — ASC studio (SysConfig) for configuring all aspects of the INA228 current sensor

SysConfig can be used to help simplify configuration challenges and accelerate software development with the INA228 current sensor.
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어
시작
지원 소프트웨어

E3-CONSOLE-APPLICATION-SW — Energy Estimation Engine (E3) driver evaluation software

The E3 Console application uses the Energy Meter Interface (EMI) IOCTLs defined by Microsoft to extract power rail data and measurement. This application can be used to evaluate TI's E3 drivers.
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어
다운로드 옵션
계산 툴

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어
시작 다운로드
계산 툴

CS-AMPLIFIER-ERROR-TOOL — Current Sense Amplifier Comparison and Error Tool

This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어
다운로드
계산 툴

SBOR021 — Power Monitor Tool

Power Monitor Tool
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어
다운로드
시뮬레이션 툴

PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®

TI용 PSpice®는 아날로그 회로의 기능을 평가하는 데 사용되는 설계 및 시뮬레이션 환경입니다. 완전한 기능을 갖춘 이 설계 및 시뮬레이션 제품군은 Cadence®의 아날로그 분석 엔진을 사용합니다. 무료로 제공되는 TI용 PSpice에는 아날로그 및 전력 포트폴리오뿐 아니라 아날로그 행동 모델에 이르기까지 업계에서 가장 방대한 모델 라이브러리 중 하나가 포함되어 있습니다.

TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 착수하기 (...)
요청
시뮬레이션 툴

TINA-TI — SPICE 기반 아날로그 시뮬레이션 프로그램

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 (...)
사용 설명서: PDF
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패키지 핀 CAD 기호, 풋프린트 및 3D 모델
VSSOP (DGS) 10 Ultra Librarian
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

포럼 주제 모두 보기(영문)

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