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INA233

現行

具有警報的 36V、16 位元、超精確 i2c 和 pmbus 輸出電流/電壓/功率/能量監視器

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產品規格表

INA233

現行
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產品詳細資料

Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Digital interface I2C, PMBus, SMBus Resolution (Bits) 16 Input offset (±) (max) (µV) 10 Input offset drift (±) (max) (µV/°C) 0.1 Input offset drift (±) (typ) (µV/°C) 0.02 Voltage gain (V/V) 1 CMRR (min) (dB) 126 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.4 Gain error (%) 0.1 Gain error drift (±) (max) (ppm/°C) 25 Features Alert Function, Bidirectional, Integrated Power Accumulator, Integrated Power Monitor, Intergrated Power Monitor, Low-side Capable, PMBUS, PMBus, Ultra precise Number of channels 1 Power measurement accuracy (%) 0.2 Rating Catalog Operating temperature range (°C) -40 to 125
Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Digital interface I2C, PMBus, SMBus Resolution (Bits) 16 Input offset (±) (max) (µV) 10 Input offset drift (±) (max) (µV/°C) 0.1 Input offset drift (±) (typ) (µV/°C) 0.02 Voltage gain (V/V) 1 CMRR (min) (dB) 126 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.7 Iq (max) (mA) 0.4 Gain error (%) 0.1 Gain error drift (±) (max) (ppm/°C) 25 Features Alert Function, Bidirectional, Integrated Power Accumulator, Integrated Power Monitor, Intergrated Power Monitor, Low-side Capable, PMBUS, PMBus, Ultra precise Number of channels 1 Power measurement accuracy (%) 0.2 Rating Catalog Operating temperature range (°C) -40 to 125
VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • Senses Bus Voltages From 0V to 36V
  • High-Side or Low-Side Sensing
  • Reports Current, Voltage, and Power
  • Integrated Power Accumulator for Energy and Average Power Monitoring
  • High Accuracy:
    • 0.1% Gain Error (Max)
    • 10µV Offset (Max)
  • Configurable Averaging Options
  • Independent Alert Limits for Current, Bus Voltage, and Power
  • 1.8V Compliant I2C, SMBus, PMBus Interface
  • 16 Programmable Addresses
  • Operates From a 2.7V to 5.5V Power Supply
  • 10-Pin, DGS (VSSOP) Package
  • Senses Bus Voltages From 0V to 36V
  • High-Side or Low-Side Sensing
  • Reports Current, Voltage, and Power
  • Integrated Power Accumulator for Energy and Average Power Monitoring
  • High Accuracy:
    • 0.1% Gain Error (Max)
    • 10µV Offset (Max)
  • Configurable Averaging Options
  • Independent Alert Limits for Current, Bus Voltage, and Power
  • 1.8V Compliant I2C, SMBus, PMBus Interface
  • 16 Programmable Addresses
  • Operates From a 2.7V to 5.5V Power Supply
  • 10-Pin, DGS (VSSOP) Package

The INA233 device is a current, voltage, and power monitor with an I2C-, SMBus-, and PMBus-compatible interface that is compliant with digital bus voltages from 1.8V to 5.0V. The device monitors and reports values for current, voltage, and power. The integrated power accumulator can be used for energy or average power calculations. Programmable calibration value, conversion times, and averaging when combined with an internal multiplier enable direct readouts of current in amperes and power in watts.

The INA233 senses current on common-mode bus voltages that can vary from 0V to 36V, independent of the supply voltage. The device operates from a single 2.7V to 5.5V supply, drawing a typical supply current of 310µA in normal operation. The device can be placed in a low-power standby mode where the typical operating current is only 2µA. The device is specified over the operating temperature range between –40°C and +125°C and features up to 16 programmable addresses.

The INA233 device is a current, voltage, and power monitor with an I2C-, SMBus-, and PMBus-compatible interface that is compliant with digital bus voltages from 1.8V to 5.0V. The device monitors and reports values for current, voltage, and power. The integrated power accumulator can be used for energy or average power calculations. Programmable calibration value, conversion times, and averaging when combined with an internal multiplier enable direct readouts of current in amperes and power in watts.

The INA233 senses current on common-mode bus voltages that can vary from 0V to 36V, independent of the supply voltage. The device operates from a single 2.7V to 5.5V supply, drawing a typical supply current of 310µA in normal operation. The device can be placed in a low-power standby mode where the typical operating current is only 2µA. The device is specified over the operating temperature range between –40°C and +125°C and features up to 16 programmable addresses.
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重要文件 類型 標題 格式選項 日期
* Data sheet INA233 36V, 16-Bit, Ultra-Precise I2 C and PMBus Output Current, Voltage, Power, and Energy Monitor With Alert datasheet (Rev. A) PDF | HTML 2025年 3月 3日
Application note Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 2024年 11月 18日
Application brief Current Sensing Applications in Communication Infrastructure Equipment (Rev. C) PDF | HTML 2023年 8月 8日
Certificate INA233EVM EU Declaration of Conformity (DoC) (Rev. A) 2023年 6月 30日
E-book An Engineer's Guide to Current Sensing (Rev. B) 2022年 4月 12日
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 2022年 1月 25日
Application brief Measuring Current for Handle Multiple Out-of-Range Conditions (Rev. C) PDF | HTML 2021年 10月 4日
Application note Digital Interfaces for Current Sensing Devices (Rev. A) PDF | HTML 2021年 9月 30日
Application brief Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 2021年 9月 29日
Application brief Integrated, Current Sensing Analog-to-Digital Converter (Rev. A) PDF | HTML 2021年 9月 28日
Selection guide Current Sense Amplifiers (Rev. E) 2021年 9月 20日
Application note Getting Started with Digital Power Monitors (Rev. A) PDF | HTML 2021年 9月 2日
Application note Synchronized Measurements with Digital Current Sense Monitors PDF | HTML 2021年 3月 23日
Application note USB Type C™ Monitor Power Budge Control With INA233 Power Sensing 2020年 6月 9日
Application brief Energy and Power Monitoring with Digital Current Sensors 2017年 5月 25日
Application note Understanding the I2C Bus PDF | HTML 2015年 6月 30日

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開發板

INA233EVM — INA233 電流分流監控器評估模組

INA233 是具有 I2C/SMBus/PMBus 相容介面的電流分流與電源監控器。該裝置監控分流壓降和匯流排供應電壓。

INA233EVM 評估模組是一款精巧、易於使用的平台，在指定輸入電流、共模電壓與溫度範圍下評估 INA233 電流分流監控器的主要功能與性能。性能評估的儀器需求極低。由隨附的 I2C 控制器處理 EVM 電源供應器和數位輸入輸出操作。
使用指南: PDF | HTML
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SBOC482 — INA233EVM

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INA233 IBIS Model

SBOMAD9.ZIP (55 KB) - IBIS Model
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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 (...)

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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 (...)
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SBOR019 — INA233 Overflow Calculator

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SBOR021 — Power Monitor Tool

Power Monitor Tool
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

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TINA-TI — 基於 SPICE 的類比模擬程式

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 (...)
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