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BQ27Z855

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具有保護器\電流限制器和驗證功能的單芯 Dynamic Z-Track ™電量計

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BQ27Z855

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產品規格表 立即訂購

產品詳細資料

Cell chemistry Li-Ion/Li-Polymer, LiFePO4, NCM, Si Anode Number of series cells Single Cell Communication interface I2C Battery capacity (min) (mAh) 100 Battery capacity (max) (mAh) 32000 Implementation Pack External capacity indication None Features Configurable current limiter, Dynamic Z-Track™ technology, ECC authentication, Integrated Protector, SHA-256 Authentication Operating temperature range (°C) -40 to 85 Rating Catalog
Cell chemistry Li-Ion/Li-Polymer, LiFePO4, NCM, Si Anode Number of series cells Single Cell Communication interface I2C Battery capacity (min) (mAh) 100 Battery capacity (max) (mAh) 32000 Implementation Pack External capacity indication None Features Configurable current limiter, Dynamic Z-Track™ technology, ECC authentication, 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)
  • Fully integrated battery gas gauge, protector, current limiter, and authenticator
  • Ultra-low power 32-bit RISC processor
  • Battery chemistries supported include Li-ion with LCO, NMC, or LFP cathodes and with graphite or Si-anodes
  • High-accuracy analog front end with two independent ADCs:
    • 18-bit low offset delta-sigma ADC for Coulomb counting with ±100mV input range
    • 16-bit delta-sigma ADC for cell voltage and internal and external temperature sensors
    • Support for simultaneous current and voltage sampling
  • High-side or low-side current sensing for system flexibility
  • Battery fuel gauging based on patented Dynamic Z-Track technology
    • Models battery impedance for accurate time-to-empty predictions for static and dynamic loads
    • Automatically adjusts for aging, temperature, and rate-induced effects on the battery
  • Programmable safety and protection:
    • Hardware- and firmware-level OVP, UVP, OCC, OCD, SCD protections
    • Overtemperature (OT) and undertemperature (UT) protections
  • Integrated high efficiency high-side NMOS protection FET drivers
    • Current limiter with programmable CC-CV profile during charge mode
    • Ideal diode controller during discharge mode
  • Up to 1MHz I2C bus communications interface with 1.2V- and 1.8V-level support
  • ECC ECDSA and SHA-256 authentication support with secure memory
  • Ultra-compact, 15-ball DSBGA package (YAH)
  • Fully integrated battery gas gauge, protector, current limiter, and authenticator
  • Ultra-low power 32-bit RISC processor
  • Battery chemistries supported include Li-ion with LCO, NMC, or LFP cathodes and with graphite or Si-anodes
  • High-accuracy analog front end with two independent ADCs:
    • 18-bit low offset delta-sigma ADC for Coulomb counting with ±100mV input range
    • 16-bit delta-sigma ADC for cell voltage and internal and external temperature sensors
    • Support for simultaneous current and voltage sampling
  • High-side or low-side current sensing for system flexibility
  • Battery fuel gauging based on patented Dynamic Z-Track technology
    • Models battery impedance for accurate time-to-empty predictions for static and dynamic loads
    • Automatically adjusts for aging, temperature, and rate-induced effects on the battery
  • Programmable safety and protection:
    • Hardware- and firmware-level OVP, UVP, OCC, OCD, SCD protections
    • Overtemperature (OT) and undertemperature (UT) protections
  • Integrated high efficiency high-side NMOS protection FET drivers
    • Current limiter with programmable CC-CV profile during charge mode
    • Ideal diode controller during discharge mode
  • Up to 1MHz I2C bus communications interface with 1.2V- and 1.8V-level support
  • ECC ECDSA and SHA-256 authentication support with secure memory
  • Ultra-compact, 15-ball DSBGA package (YAH)

The Texas Instruments BQ27Z855 Dynamic Z-Trackgas gauge solution is a fully integrated, accurate 1-series cell gas gauge, protection, current limiter, and authentication solution.

The BQ27Z855 device provides a fully integrated pack-based solution with a flash programmable reduced instruction-set CPU (RISC), safety protection, current limiter, ideal diode controller, and authentication for 1-series cell Li-ion and Li-polymer battery packs.

The BQ27Z855 gas gauge communicates through an I2C compatible interface and combines an ultra-low power RISC processor, high accuracy analog measurement capabilities, integrated flash memory, high-side NMOS FET drivers, and ECC ECDSA and SHA-2 authentication to provide a complete, high-performance battery management solution.

The Texas Instruments BQ27Z855 Dynamic Z-Trackgas gauge solution is a fully integrated, accurate 1-series cell gas gauge, protection, current limiter, and authentication solution.

The BQ27Z855 device provides a fully integrated pack-based solution with a flash programmable reduced instruction-set CPU (RISC), safety protection, current limiter, ideal diode controller, and authentication for 1-series cell Li-ion and Li-polymer battery packs.

The BQ27Z855 gas gauge communicates through an I2C compatible interface and combines an ultra-low power RISC processor, high accuracy analog measurement capabilities, integrated flash memory, high-side NMOS FET drivers, and ECC ECDSA and SHA-2 authentication to provide a complete, high-performance battery management solution.
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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 BQ27Z855 Dynamic Z-Track™ Gauge with Integrated Protection, Current Limiter, and Authentication for 1 Cell Battery Packs datasheet PDF | HTML 2026/2/12
* 使用指南 BQ27Z855 Technical Reference Manual (Rev. A) PDF | HTML 2026/7/21
應用說明 Dynamic Z-Track™ Technology: An Advanced Battery Gauging Algorithm for Dynamic Load Applications (Rev. A) PDF | HTML 2025/7/15
應用說明 Implementation of Elliptic Curve Cryptography Authentication on TI Battery Fuel Gauges PDF | HTML 2025/5/28
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 Battery Gauging Algorithm Comparison PDF | HTML 2023/12/4

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

BQ27Z855EVM — BQ27Z855EVM 評估模組

BQ27Z855 評估模組 (EVM) 是一款系統級電路板，旨在讓使用者能夠評估其係統中 BQ27Z855 油量計的功能。BQ27Z855 EVM 適用於電池組為 1-S 電池芯，即單顆串聯電池芯的應用。EVM 包括 BQ27Z855 電池電量計、低壓側電流偵測電阻器、整合式高壓側保護器、ENAB 喚醒按鈕、充電器喚醒按鈕、線性電池充電器以及其他接頭選項，以便進行一些修改以滿足預期應用需求。

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。

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韌體

BQ27Z855-FW — BQ27Z855 device firmware

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開發模組 (EVM) 的 GUI

BQSTUDIO-GUI — Battery Management Studio (bqStudio) Software - Web Based Version

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。

 

bqStudio-web 不支援 bq20xxx、bq30xxx 和 bq40xxx 等較舊的產品。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。

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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 (...)

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
DSBGA (YAH) 15 Ultra Librarian
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