產品詳細資料

Rating Catalog Number of series cells (max) 7 Number of series cells (min) 2 Features Digital output, I2C support, Integrated ADC, LDO output, Low-Power Sleep Mode, Low-side driver, Multi-cell support, One-time-programmable (OTP) memory, Open-wire detection, Overcurrent in charging protection, Overcurrent in discharging protection, Overtemperature protection, Overvoltage protection, Short-current detection, Sleep Mode, Temperature sensing, Undertemperature protection, Undervoltage protection Vin (max) (V) 38.5 Communication interface I2C Device type Cell monitor and balancer, Protector Operating temperature range (°C) -40 to 110 Battery overvoltage protection (min) (V) 0 Battery overvoltage protection (max) (V) 5.5 Operating current (typ) (µA) 140
Rating Catalog Number of series cells (max) 7 Number of series cells (min) 2 Features Digital output, I2C support, Integrated ADC, LDO output, Low-Power Sleep Mode, Low-side driver, Multi-cell support, One-time-programmable (OTP) memory, Open-wire detection, Overcurrent in charging protection, Overcurrent in discharging protection, Overtemperature protection, Overvoltage protection, Short-current detection, Sleep Mode, Temperature sensing, Undertemperature protection, Undervoltage protection Vin (max) (V) 38.5 Communication interface I2C Device type Cell monitor and balancer, Protector Operating temperature range (°C) -40 to 110 Battery overvoltage protection (min) (V) 0 Battery overvoltage protection (max) (V) 5.5 Operating current (typ) (µA) 140
VQFN (RGR) 20 12.25 mm² (3.5 mm × 3.5 mm)
  • Battery monitoring capability for 2-series to 7-series cells
  • Integrated low-side drivers for NFET protection with optional autonomous recovery
  • Extensive protection suite including voltage, temperature, current, and internal diagnostics
  • 16-bit delta-sigma voltage ADC
    • High accuracy cell voltage measurement of 4mV (typical)
  • Dedicated 16- or 24-bit delta-sigma coulomb counter ADC
    • High-accuracy current measurement with low input offset error
    • Wide-range current applications (±200mV measurement range across sense resistor)
    • 48-bit accumulated charge integrator with timer
  • Host-controlled cell balancing
  • Multiple power modes (typical battery pack operating range conditions)
    • NORMAL mode: 32µA to 175µA
    • SLEEP mode: 6µA
    • DEEPSLEEP mode: 2.7µA
    • SHUTDOWN mode: <1µA
  • High-voltage tolerance of 45V on cell connect and select additional pins
  • Support for temperature sensing using an internal sensor and an external thermistor
  • Integrated one-time-programmable (OTP) memory for device settings, programmed by TI
  • 400kHz I2C serial communications with optional CRC support
  • Programmable LDO for external system usage
  • 20-pin QFN (RGR) package
  • Battery monitoring capability for 2-series to 7-series cells
  • Integrated low-side drivers for NFET protection with optional autonomous recovery
  • Extensive protection suite including voltage, temperature, current, and internal diagnostics
  • 16-bit delta-sigma voltage ADC
    • High accuracy cell voltage measurement of 4mV (typical)
  • Dedicated 16- or 24-bit delta-sigma coulomb counter ADC
    • High-accuracy current measurement with low input offset error
    • Wide-range current applications (±200mV measurement range across sense resistor)
    • 48-bit accumulated charge integrator with timer
  • Host-controlled cell balancing
  • Multiple power modes (typical battery pack operating range conditions)
    • NORMAL mode: 32µA to 175µA
    • SLEEP mode: 6µA
    • DEEPSLEEP mode: 2.7µA
    • SHUTDOWN mode: <1µA
  • High-voltage tolerance of 45V on cell connect and select additional pins
  • Support for temperature sensing using an internal sensor and an external thermistor
  • Integrated one-time-programmable (OTP) memory for device settings, programmed by TI
  • 400kHz I2C serial communications with optional CRC support
  • Programmable LDO for external system usage
  • 20-pin QFN (RGR) package
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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 BQ76907 2-Series to 7-Series High Accuracy Battery Monitor and Protector for Li-Ion, Li-Polymer, LiFePO4 (LFP), and LTO Battery Packs datasheet (Rev. A) PDF | HTML 2026/7/6
* 使用指南 BQ76907 Technical Reference Manual PDF | HTML 2023/11/17
應用說明 Why is short-circuit protection more challenging for high- side driver battery packs than low-side driver? PDF | HTML 2026/1/23
應用說明 Understanding BQ76905, BQ76907 Voltage Sampling Measurement Loop PDF | HTML 2025/9/11
應用說明 Cell Balancing With BQ7690x Battery Monitors PDF | HTML 2024/1/4
使用指南 BQ7690x Software Development Guide PDF | HTML 2023/12/11
證書 BQ76907EVM EU Declaration of Conformity (DoC) PDF | HTML 2023/11/15

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

BQ76907EVM — 適用於低功耗監控器和保護器的 BQ76907 評估模組

BQ76907EVM 評估模組 (EVM) 是適用於 BQ76907 的完整評估系統。BQ76907 是高度整合、高準確度的電池監控器和保護器,適用於 2 串聯至 7 串聯鋰離子、鋰聚合物和 LiFePO4 電池組。此 EVM 包括一個 BQ76907 積體電路 (IC)、感測電阻器、一個熱敏電阻、電源 FET,以及其他所有必要的板載零組件,以防止電池過度充電、過度放電、短路、過電流放電、溫度過高和過低。
使用指南: PDF | HTML
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應用軟體及架構

BQSTUDIO-STABLE — Battery Management Studio (bqStudio) Software – stable version downloads for bq series of TI battery fuel gauges

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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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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驅動程式或資料庫

BQ7690X-CODE-EXAMPLES — BQ7690x 電池監控器程式碼範例

Microcontroller sample code examples for interfacing with BQ7690x battery monitors and protectors.
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參考設計

TIDA-010268 — 具有低壓側 MOSFET 控制的 5s 至 7s 電池組監控器參考設計

此參考設計是高電池芯電壓準確度 5s 至 7s 鋰離子、磷酸鐵鋰 (LiFePO4) 電池組設計。此設計以高準確度監控各電池芯電壓、電池組電流、電池芯和金屬氧化半導體場效電晶體 (MOSFET) 溫度,並保護鋰離子和 LiFePO4 電池組免於發生電池芯過電壓、電池芯欠電壓、過熱、充電和放電過電流和放電短路狀況。此產品採用低壓側 N 通道 MOSFET 架構,並具有強大驅動開啟和關閉能力。這些功能讓此參考設計非常適用於電動工具與吸塵器電池組應用。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RGR) 20 Ultra Librarian

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