產品詳細資料

Cell chemistry Li-Ion/Li-Polymer, LiFePO4 Number of series cells Single Cell Communication interface HDQ, I2C Battery capacity (min) (mAh) 100 Battery capacity (max) (mAh) 32000 Implementation Pack External capacity indication None Features Impedance Track™ algorithm, Integrated Protector, SHA-256 Authentication Operating temperature range (°C) -40 to 85 Rating Catalog
Cell chemistry Li-Ion/Li-Polymer, LiFePO4 Number of series cells Single Cell Communication interface HDQ, I2C Battery capacity (min) (mAh) 100 Battery capacity (max) (mAh) 32000 Implementation Pack External capacity indication None Features Impedance Track™ algorithm, Integrated Protector, SHA-256 Authentication Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YAH) 15 5.4488 mm² (2.78 mm × 1.96 mm)
  • Integrated battery gas gauge and protector
  • Flash-programmable custom BQBMP RISC CPU
    • SHA-256 authentication
    • 400kHz I2C bus communications interface
  • Low-voltage (2.0V) operation
  • Two independent precision 16-bit ADCs
    • Coulomb counting ADC with current sense resistor down to 1mΩ
    • Voltage ADC for cell voltage and external and internal temperature sensors
  • Battery fuel gauging based on patented Impedance Track™ technology
    • Models battery discharge curve for accurate time-to-empty predictions
    • Automatically adjusts for aging-, temperature-, and rate-induced effects on the battery
  • Battery Kelvin sense differential analog output pins with built-in protection
  • High-side or low-side current sensing
  • Programmable hardware-based protection
    • High-side FET gate drivers
    • Overvoltage and undervoltage (OVP and UVP)
    • Overcurrent in discharge and overcurrent in charge (OCD and OCC)
    • Short circuit in discharge (SCD)
    • Firmware-based overtemperature (OT)
  • Reduced typical power modes
    • SLEEP mode: 20µA
    • SHIP mode: 10µA
    • SHELF mode 5 µA
    • SHUTDOWN mode: 0.2µA
  • Ultra-compact, 15-ball NanoFree™ DSBGA
  • Integrated battery gas gauge and protector
  • Flash-programmable custom BQBMP RISC CPU
    • SHA-256 authentication
    • 400kHz I2C bus communications interface
  • Low-voltage (2.0V) operation
  • Two independent precision 16-bit ADCs
    • Coulomb counting ADC with current sense resistor down to 1mΩ
    • Voltage ADC for cell voltage and external and internal temperature sensors
  • Battery fuel gauging based on patented Impedance Track™ technology
    • Models battery discharge curve for accurate time-to-empty predictions
    • Automatically adjusts for aging-, temperature-, and rate-induced effects on the battery
  • Battery Kelvin sense differential analog output pins with built-in protection
  • High-side or low-side current sensing
  • Programmable hardware-based protection
    • High-side FET gate drivers
    • Overvoltage and undervoltage (OVP and UVP)
    • Overcurrent in discharge and overcurrent in charge (OCD and OCC)
    • Short circuit in discharge (SCD)
    • Firmware-based overtemperature (OT)
  • Reduced typical power modes
    • SLEEP mode: 20µA
    • SHIP mode: 10µA
    • SHELF mode 5 µA
    • SHUTDOWN mode: 0.2µA
  • Ultra-compact, 15-ball NanoFree™ DSBGA

The Texas Instruments BQ27Z746 Impedance Track™ gas gauge solution is a highly integrated, accurate 1-series cell gas gauge and protection solution.

The BQ27Z746 device provides a fully integrated pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, differential battery sensing analog output, and authentication for 1-series cell Li-ion and Li-polymer battery packs.

The BQ27Z746 gas gauge communicates through an I2C compatible interface and combines an ultra-low power TI BQBMP processor, high accuracy analog measurement capabilities, integrated flash memory, N-CH high-side FET drive, and a SHA-2 Authentication transform responder into a complete, high-performance battery management solution.

The Texas Instruments BQ27Z746 Impedance Track™ gas gauge solution is a highly integrated, accurate 1-series cell gas gauge and protection solution.

The BQ27Z746 device provides a fully integrated pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, differential battery sensing analog output, and authentication for 1-series cell Li-ion and Li-polymer battery packs.

The BQ27Z746 gas gauge communicates through an I2C compatible interface and combines an ultra-low power TI BQBMP processor, high accuracy analog measurement capabilities, integrated flash memory, N-CH high-side FET drive, and a SHA-2 Authentication transform responder into a complete, high-performance battery management solution.

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BQ27Z758 現行 具有真正 0V 充電的 1 串聯 Impedance Track™ 電池電量計與保護 BQ27Z758 has true 0-V charge function

技術文件

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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 BQ27Z746 Impedance Track Technology Battery Gas Gauge and Protection Solution for 1-Series Cell Li-Ion Battery Packs datasheet (Rev. D) PDF | HTML 2026/2/12
* 使用指南 BQ27Z746-R1 and BQ27Z758 Technical Reference Manual (Rev. E) PDF | HTML 2026/6/18
* 使用指南 BQ27Z746-R1 Technical Reference Manual PDF | HTML 2023/10/17
* 使用指南 BQ27Z746 Technical Reference Manual PDF | HTML 2021/10/27
應用說明 How to Create and Program Authentication Keys into TI Battery Fuel Gauges PDF | HTML 2025/3/5
應用說明 BQ27Z746 Hardware Protection Threshold Calibration PDF | HTML 2024/12/2
應用說明 Battery Gauging Algorithm Comparison PDF | HTML 2023/12/4
應用說明 Design Flexibility for Reverse Charge Protection Using BQ27Z746 PDF | HTML 2023/8/2
證書 BQ27Z746EVM-047 EU RoHS Declaration of Conformity (DoC) 2021/11/1

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

BQ27Z746EVM-047 — BQ27Z746 評估模組,具有保護解決方案的 Impedance Track™ 技術電池氣量計

BQ27Z746EVM-047 評估模組 (EVM) 是適用 BQ27Z746 電池管理器的完整評估系統。EVM 包含 BQ27Z746,具備整合式保護電路模組和與 Windows® PC 軟體連結。提供 BQ27Z746 積體電路 (IC) 和所有板載元件以監控重要電池芯參數、預測電池芯容量和健康狀態,並防止 1 串聯電池芯鋰離子或鋰聚合物電池組中的電池芯過度充電、過度放電、短路和過電流。BQ27Z746EVM 使用 I2C 通訊協定、EV2400 與 bqStudio 軟體 GUI 來讀取 BQ27Z746 資料暫存器、為不同電池組配置進行 BQ27Z746 (...)

使用指南: PDF | HTML
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應用軟體及架構

BQSTUDIO-TEST — Battery Management Studio (bqStudio) Software – Beta version downloads

Battery Management Studio (bqStudio) 提供全套的強固工具,可協助評估、設計、配置、測試或使用 TI 電池管理產品的程序。其中包括可提供暫存器及資料記憶體完整存取的功能,包括支援即時觀看、繪圖和記錄、傳送命令的簡易介面、直接低階通訊和 I/O,以及用於配置、校準和執行學習週期的自動化和引導支援,進而產生實用的檔案,以利裝置投入生產。

在 bqStudio 中也支援舊產品,如 bq20xxx 和 bq30xxx。從適當的產品頁面下載特定的評估軟體。此外,您為 bqStudio 下載的最新化學更新程式需要 bqStudio 的更新版。

支援產品和硬體
韌體

BQ27Z746-DEVICE-FW — Firmware for BQ27Z746 family of gauges

BQ27Z746-DEVICE-FW 是一個僅限韌體 (FW) 版本,可以閃存到任何現有硬體 (例如 BQ27Z746 產品) 上。該韌體採用 Impedance Track™ 專利技術,建立基於電池組的解決方案,爲 1 節鋰離子和鋰聚合物電池組提供氣體計量、保護和差分電池感測類比輸出和驗證提供豐富的功能。

BQ27Z746 系列的電量計韌體透過其整合式高性能類比周邊設備啟用裝置,並測量並維護鋰離子或鋰聚合物電池的可用容量、電壓、電流、溫度和其他重要參數的準確記錄,並將此資訊呈報至系統主機控制器。整合式防護可針對過電壓 (OVP)、電壓過低 (UVP)、充電/放電過電流 (...)

支援產品和硬體
軟體程式設計工具

BQ-BMS-PROGRAMMER-SW — Command line programmers for BQ products

BQ-BATTERY-PROGRAMMER-SW 軟體開發套件 (SDK) 是一系列穩固的軟體命令列工具,可協助使用 TI 電池管理產品進行編程、測試或組裝電池組作業。此軟體中的可執行檔可與 EV2300 通訊收發器的 MKST-3P-ALT-EV2300 MKS 技術替代產品配合使用。這些可執行檔可與單站點一起使用,並可透過使用 MKS Technology Inc. 提供的附加軟體和 GUI 擴展到多個站點。此軟體不支援多工作站。

每次下載都會有多個可執行檔,通常每個平台一個。另外也支援較舊的產品,如 BQ20xxx 和 BQ30xxx。我們提供使用 C++ 程式語言 API 和 (...)

支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
DSBGA (YAH) 15 Ultra Librarian

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