產品詳細資料

Cell chemistry Li-Ion/Li-Polymer Number of series cells Single Cell Communication interface I2C Battery capacity (min) (mAh) 100 Battery capacity (max) (mAh) 8000 Implementation System External capacity indication None Features Impedance Track™ algorithm Operating temperature range (°C) -40 to 85 Rating Catalog
Cell chemistry Li-Ion/Li-Polymer Number of series cells Single Cell Communication interface I2C Battery capacity (min) (mAh) 100 Battery capacity (max) (mAh) 8000 Implementation System External capacity indication None Features Impedance Track™ algorithm Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YZF) 9 3.0625 mm² 1.75 x 1.75
  • Single-cell Li-ion battery fuel gauge
    • Resides on system board
    • Supports embedded or removable batteries
    • Powers directly from the battery with integrated LDO
    • Supports a low-value external sense resistor (10 mΩ)
  • Ultra low 9 µA operating current when the load is below 10 mA, set by Sleep Current threshold.
  • Battery fuel gauging based on patented Impedance Track™ technology
    • Provides three selectable preprogrammed profiles for 4.2-V, 4.35-V, and 4.4-V cells
    • Reports remaining capacity and state-of-charge (SOC) with smoothing filter
    • Adjusts automatically for battery aging, self-discharge, temperature, and rate changes
    • Estimates battery state-of-health (aging)
  • Microcontroller peripheral interface supports:
    • 400-kHz I 2C serial interface
    • Configurable SOC interrupt or battery low digital output warning
    • Internal temperature sensor or host reported temperature or external thermistor
  • Single-cell Li-ion battery fuel gauge
    • Resides on system board
    • Supports embedded or removable batteries
    • Powers directly from the battery with integrated LDO
    • Supports a low-value external sense resistor (10 mΩ)
  • Ultra low 9 µA operating current when the load is below 10 mA, set by Sleep Current threshold.
  • Battery fuel gauging based on patented Impedance Track™ technology
    • Provides three selectable preprogrammed profiles for 4.2-V, 4.35-V, and 4.4-V cells
    • Reports remaining capacity and state-of-charge (SOC) with smoothing filter
    • Adjusts automatically for battery aging, self-discharge, temperature, and rate changes
    • Estimates battery state-of-health (aging)
  • Microcontroller peripheral interface supports:
    • 400-kHz I 2C serial interface
    • Configurable SOC interrupt or battery low digital output warning
    • Internal temperature sensor or host reported temperature or external thermistor

The Texas Instruments BQ27426 battery fuel gauge is a single-cell gauge that requires minimal user-configuration and system microcontroller firmware development, leading to quick system bring-up.

Three chemistry profiles are preprogrammed to enable minimum user-configuration, and to help manage customer inventory across projects with different battery chemistries. The BQ27426 battery fuel gauge has very low sleep power consumption leading to longer battery run time. Configurable interrupts help save system power and free up the host from continuous polling. Accurate temperature sensing is supported via an external thermistor.

The BQ27426 battery fuel gauge uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV).

Battery fuel gauging with the BQ27426 fuel gauge requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The tiny, 9-ball, 1.62 mm × 1.58 mm, 0.5 mm pitch NanoFree™ chip scale package (DSBGA) is ideal for space-constrained applications.

The Texas Instruments BQ27426 battery fuel gauge is a single-cell gauge that requires minimal user-configuration and system microcontroller firmware development, leading to quick system bring-up.

Three chemistry profiles are preprogrammed to enable minimum user-configuration, and to help manage customer inventory across projects with different battery chemistries. The BQ27426 battery fuel gauge has very low sleep power consumption leading to longer battery run time. Configurable interrupts help save system power and free up the host from continuous polling. Accurate temperature sensing is supported via an external thermistor.

The BQ27426 battery fuel gauge uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV).

Battery fuel gauging with the BQ27426 fuel gauge requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The tiny, 9-ball, 1.62 mm × 1.58 mm, 0.5 mm pitch NanoFree™ chip scale package (DSBGA) is ideal for space-constrained applications.

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功能相同,但引腳輸出與所比較的裝置不同
BQ27427 現行 具有預編程化學及整合式感測電阻器的單芯電池電量計 Low power consumption, internal sense resistor and battery state-of-health (aging) estimates  

技術文件

star =TI 所選的此產品重要文件
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重要文件 類型 標題 格式選項 日期
* Data sheet BQ27426 System-Side Impedance Track™ Fuel Gauge datasheet (Rev. G) PDF | HTML 2023年 4月 27日
* User guide bq27426 Technical Reference Manual 2015年 12月 17日
Application note Battery Gauging Algorithm Comparison PDF | HTML 2023年 12月 4日
Application note BQ27426 Gauging Design for Applications With 2 Serial Li-Ion Batteries (Rev. A) PDF | HTML 2022年 9月 23日
Application note Method for TI Gauge to Avoid SOC Jump on Smart Phone Application 2022年 2月 25日
Application note Impedance Track Gauge Configuration For Dynamic Loads (EPOS) 2019年 9月 15日
Technical article Get smart: How intelligent battery gauges improve battery life in continuous gluco PDF | HTML 2019年 4月 19日
Application note Simple Guide to Chemical ID Selection Tool (GPC) (Rev. A) 2018年 6月 5日
Application note The bq27426 Performace Under Dynamic Battery Voltage for Portable Audio Applicat 2017年 10月 9日
User guide Quick-Start Guide for bq27426 Fuel Gauge 2017年 7月 11日
Technical article Achieving higher-accuracy battery fuel-gauge performance in ultra-low-power system PDF | HTML 2017年 5月 9日
Application note Gauge Communication 2017年 1月 12日

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

BQ27426EVM-738 — 具有簡單易用的預編程化學設定檔且適用於 Impedance Track 電池電量計的 BQ27426 EVM

The BQ27426EVM-738 evaluation module is a complete evaluation system for the bq27426. The EVM includes one bq27426 circuit module with an external sense resistor. A separated orderable EV2400 PC interface board for gas gauge interface along with a PC USB cable, and Windows™-based PC software (...)

使用指南: PDF
TI.com 無法提供
應用軟體及架構

BQSTUDIO — Battery Management Studio (bqStudio) 軟體

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。
驅動程式或資料庫

BQ27XXXSW-LINUX — 適用於 BQ27XXX 的 Linux 驅動程式

The Linux driver supports the BQ27x series of Battery Fuel Gauges. The Linux driver supports communication through the I2C/HDQ bus and interfaces with the power supply sub-system to monitor battery properties.

 

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

(...)

支援軟體

BQEVSW-MKST-UPDATE Software Update to enable BQEVSW to use MKST-3P-ALT-EV2300

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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支援產品和硬體

下載選項
計算工具

GAUGEPARCAL — 計量參數計算機

計量參數計算機 (GPC) 是一種數學計算與模擬工具,可協助電池設計人員為特定電池性能評測工具取得相符的補償放電終止電壓 (CEDV) 係數。此工具可讓使用者提高電量計 IC 隨溫度變化的準確度。
使用指南: PDF | HTML
參考設計

TIDA-01395 — 適用於智慧空調、具有寬輸入電壓轉換器和電池電量計的 24V AC 功率級參考設計

此參考設計為智慧型恆溫器與其他閘道建築自動化設計提供低 BOM 數量、高效率功率級。此功率級採用 24-V AC 輸入,並產生 5-V 與 3.3-V 輸出軌,可在新增時為額外的負載點轉換器供電。此設計在 24-V AC 供電不足時提供 LiPo 電池充電,並無縫切換至電池電源。電源路徑功能可提供電池供電輔助,允許負載暫態超過 24-V AC 轉 DC 系統的電流限制,進而使用成本更低的寬輸入電壓降壓。電池電量計幫助設計人員保留電池壽命並透過中央處理器做出更智慧的節能和系統功能決策來確保正常運作。
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01012 — 無線物聯網、低功耗藍牙®、4½ 位元、100 kHz 真 RMS 數位萬用電錶

許多產品現在透過物聯網 (IoT) 實現連網功能,包括數位萬用電表 (DMM) 等 測試設備。  由德州儀器的 SimpleLink™ 超低功耗無線微控制器 (MCU) 平台驅動,TIDA-01012 參考設計展示了一款具備連網功能的 4½ 位數、100kHz 真 RMS DMM,支援 Bluetooth® 低功耗連線、NFC 藍牙配對,以及由 TI 的 CapTIvate™ 技術實現的自動喚醒功能。

 
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01014 — 適用於低功耗工業物聯網現場計量的強化準確度電池電量計參考設計

物聯網 (IoT) 革命可有效連接應用與儀器,實現電池供電的廣泛超低功耗感測器部署。  TI 進階感測器和低功耗連線裝置等新技術使這些儀器能夠設計成電池供電無線系統,大幅改善成本、部署、可靠性、性能和複雜性。

TIDA-01014 參考設計採用德州儀器的 SimpleLink™ 超低功耗無線微控制器 (MCU) 平台,運用 TIDA-01012 無線 DMM 參考設計,展示 bq27426 如何用來強化電池管理系統的電量計性能,最終達到最佳耗電量。TIDA-01014 具備無線連接、4½ 位數、100kHz 真 RMS DMM,支援 Bluetooth 低功耗® (BLE) 無線連線、NFC (...)

Design guide: PDF
電路圖: PDF
參考設計

TIDA-01182 — 具有自動音訊控制 1S1P BMS 的可攜式音訊放大器參考設計

高性能 10W(每個喇叭 5W)可攜式音訊放大器,整合完整的電池管理解決方案 (BMS),包含充電器、電量計及 1S1P 18650 2400mAh 鋰電池保護功能,專為 D 類音訊放大器設計。透過高效電源調節器、D 類放大器與完善的電池管理系統,可顯著延長設備運作時間。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
DSBGA (YZF) 9 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
內含資訊:
  • 晶圓廠位置
  • 組裝地點

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