首頁 放大器 電流感測放大器 數位電源監測器
首頁
放大器
電流感測放大器
數位電源監測器

INA226-Q1

現行

具有警報功能的 AEC-Q100、36V、16 位元、超精確、i2c 輸出電流/電壓/功率/電源監控器

立即訂購
產品規格表

INA226-Q1

現行
產品規格表 立即訂購

產品詳細資料

Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Digital interface I2C, 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 Iq (max) (mA) 0.42 Gain error (%) 0.1 Gain error drift (±) (max) (ppm/°C) 50 Features Alert Function, Bidirectional, Intergrated Power Monitor, Low-side Capable, Ultra precise Number of channels 1 Power measurement accuracy (%) 0.2 TI functional safety category Functional Safety-Capable Rating Automotive Operating temperature range (°C) -40 to 125
Common-mode voltage (max) (V) 36 Common-mode voltage (min) (V) 0 Digital interface I2C, 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 Iq (max) (mA) 0.42 Gain error (%) 0.1 Gain error drift (±) (max) (ppm/°C) 50 Features Alert Function, Bidirectional, Intergrated Power Monitor, Low-side Capable, Ultra precise Number of channels 1 Power measurement accuracy (%) 0.2 TI functional safety category Functional Safety-Capable Rating Automotive Operating temperature range (°C) -40 to 125
VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C
    • Device HBM ESD classification 2
    • Device CDM ESD classification C4B
  • Functional Safety-Capable
  • Senses bus voltages from 0V to 36V
  • High-side or low-side sensing
  • Reports current, voltage, and power
  • High accuracy:
    • Gain error: 0.1% (maximum)
    • Offset: 10µV (maximum)
  • Configurable averaging options
  • 16 programmable addresses
  • Operates from 2.7V to 5.5V power supply
  • 10-pin DGS (VSSOP) package
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C
    • Device HBM ESD classification 2
    • Device CDM ESD classification C4B
  • Functional Safety-Capable
  • Senses bus voltages from 0V to 36V
  • High-side or low-side sensing
  • Reports current, voltage, and power
  • High accuracy:
    • Gain error: 0.1% (maximum)
    • Offset: 10µV (maximum)
  • Configurable averaging options
  • 16 programmable addresses
  • Operates from 2.7V to 5.5V power supply
  • 10-pin DGS (VSSOP) package

The INA226-Q1 is a current shunt and power monitor with an I2C™- or SMBUS-compatible interface. The device monitors both a shunt voltage drop 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 INA226-Q1 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 of 330µA of supply current. The device is specified over the operating temperature range between –40°C and 125°C and features up to 16 programmable addresses on the I2C-compatible interface.

The INA226-Q1 is a current shunt and power monitor with an I2C™- or SMBUS-compatible interface. The device monitors both a shunt voltage drop 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 INA226-Q1 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 of 330µA of supply current. The device is specified over the operating temperature range between –40°C and 125°C and features up to 16 programmable addresses on the I2C-compatible interface.
filter 尋找其它 數位電源監測器
下載 觀看有字幕稿的影片 影片

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 20
重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 INA226-Q1 AEC-Q100, 36V, 16-Bit, Ultra-Precise, I2C Output Current, Voltage, and Power Monitor With Alert datasheet (Rev. B) PDF | HTML 2024/9/17
應用說明 Using a PCB Copper Trace as a Current Sense Shunt Resistor (Rev. A) PDF | HTML 2026/4/27
應用說明 Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 2024/11/18
功能安全資訊 INA226 Functional Safety FIT Rate, FMD and Pin FMA (Rev. B) PDF | HTML 2024/11/12
Application brief Integrating the Current Sensing Resistor (Rev. D) PDF | HTML 2023/4/7
應用說明 Digital Interfaces for Current Sensing Devices (Rev. A) PDF | HTML 2021/9/30
Application brief Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 2021/9/29
Application brief Integrated, Current Sensing Analog-to-Digital Converter (Rev. A) PDF | HTML 2021/9/28
選擇指南 Current Sense Amplifiers (Rev. E) 2021/9/20
應用說明 Getting Started with Digital Power Monitors (Rev. A) PDF | HTML 2021/9/2
Application brief Shunt-Based Current-Sensing Solutions for BMS Applications in HEVs and EVs (Rev. B) PDF | HTML 2021/2/2
技術文章 Current sensing in battery management systems PDF | HTML 2019/5/30
Application brief Precision, Low-Side Current Measurement (Rev. B) 2019/3/6
Application brief External current sense amps vs integrated onboard amplifiers for current sensing (Rev. B) 2019/2/19
Application brief Current sensing with INA226-Q1 in HEV and EV BMS subsystems (Rev. A) 2019/1/31
技術文章 Understanding current sensing in HEV/EV batteries PDF | HTML 2017/8/2
Application brief Energy and Power Monitoring with Digital Current Sensors 2017/5/25
白皮書 Overcurrent protection enables more efficient and reliable systems 2016/5/16
應用說明 Applying I²C Compatible Temperature Sensors in Systems with Slow Clock Edges 2015/12/1
應用說明 Understanding the I2C Bus PDF | HTML 2015/6/30

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

INA226EVM — INA226 評估模組

INA226 評估模組 (EVM) 是一款易於使用的平台，可評估 INA226 的主要功能與性能。EVM 支援高達 10 A 的電流量測，並隨附圖形使用者介面 (GUI) 支援，可讀取及寫入裝置暫存器。

使用指南: PDF | HTML
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
IDE、配置、編譯器或偵錯程式

ASC-STUDIO-INA226 — ASC studio (SysConfig) for configuring all aspects of the INA226 digital power monitor

SysConfig can be used to help simplify configuration challenges and accelerate software development with the INA226 digital power monitor.
支援產品和硬體
程式碼範例或展示

SBOC410 — INA226EVM Rev A Source Code

支援產品和硬體
開發模組 (EVM) 的 GUI

SBOC409 — INA226EVM Rev A Software

支援產品和硬體
模擬型號

INA226 IBIS Model

SBOM458.ZIP (34 KB) - IBIS 模型
支援產品和硬體
計算工具

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

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

支援產品和硬體
計算工具

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

此 Excel 計算機提供兩個與五個標準電流感測放大器的比較，並提供包含各裝置基本參數的圖表。此計算機也會採用使用者的系統條件輸入，例如共模電壓、供應電壓、分流電阻器值與公差，然後在可調整電流範圍中繪製錯誤曲線。此外，計算機會根據計算的全刻度輸入電壓除以最大量測電流，輸出最大分流值 (mΩ)。
支援產品和硬體
計算工具

SBOR021 — Power Monitor Tool

支援產品和硬體
參考設計

TIDA-00302 — 具瞬態穩定性的電流分流監控器參考設計

此高壓側電流分流監控器可用於測量電流通過电流感测電阻器時在电阻器上所形成的電壓。

此外，實作外部保護電路以提供突波和快速暫態保護，並針對 IEC61000-4-4 和 IEC61000-4-5 展示不同的抗擾度等級。

支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSSOP (DGS) 10 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片系列

觀看所有影片

影片