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電池管理 IC
電池電量計

BQ27Z746

現行

具有整合式保護器的電池組側、單芯 Impedance Track™ 技術電量計

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產品規格表

BQ27Z746

現行
產品規格表 立即訂購

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 x 1.96
  • 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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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet BQ27Z746 Impedance Track Technology Battery Gas Gauge and Protection Solution for 1-Series Cell Li-Ion Battery Packs datasheet (Rev. D) PDF | HTML 2026年 2月 12日
Application note How to Create and Program Authentication Keys into TI Battery Fuel Gauges PDF | HTML 2025年 3月 5日
Application note BQ27Z746 Hardware Protection Threshold Calibration PDF | HTML 2024年 12月 2日
Application note Battery Gauging Algorithm Comparison PDF | HTML 2023年 12月 4日
EVM User's guide BQ27Z746 Impedance Track Battery Gas Gauge and Protection Solution for 1-Series (Rev. A) PDF | HTML 2023年 10月 19日
User guide BQ27Z746-R1 Technical Reference Manual PDF | HTML 2023年 10月 17日
Application note Design Flexibility for Reverse Charge Protection Using BQ27Z746 PDF | HTML 2023年 8月 2日
Certificate BQ27Z746EVM-047 EU RoHS Declaration of Conformity (DoC) 2021年 11月 1日
User guide BQ27Z746 Technical Reference Manual PDF | HTML 2021年 10月 27日

設計與開發

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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) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)

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韌體

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

The BQ27Z746-DEVICE-FW is a firmware (FW)-only release that can be flashed onto any existing hardware such as BQ27Z746 product. The firmware incorporates the patented Impedance Track™ technology to create a pack-based solution that provides a rich array of features for gas gauging, protection, (...)

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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 software development kit (SDK) is a collection of robust software command line tools that assist with the process of programming, testing, or assembling packs that use TI Battery management products. The executables in this software work with the MKST-3P-ALT-EV2300 MKS (...)

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DSBGA (YAH) 15 Ultra Librarian
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  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
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  • 組裝地點

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