首頁 電池管理 IC 電池監控器和平衡器
首頁
電池管理 IC
電池監控器和平衡器

BQ76907

現行

具有高準確度電池電壓量測且適用於 2S 到 7S 的低功率監控器和保護器

立即訂購
產品規格表

BQ76907

現行
產品規格表 立即訂購

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 x 3.5
  • 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 4 mV (typical)
  • Dedicated 16- or 24-bit delta-sigma coulomb counter ADC
    • High-accuracy current measurement with low input offset error
    • Wide-range current applications (±200-mV 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: 32 µA to 175 µA
    • SLEEP mode: 6 µA
    • DEEPSLEEP mode: 2.7 µA
    • SHUTDOWN mode: <1 µA
  • High-voltage tolerance of 45 V 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
  • 400-kHz I 2C 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 4 mV (typical)
  • Dedicated 16- or 24-bit delta-sigma coulomb counter ADC
    • High-accuracy current measurement with low input offset error
    • Wide-range current applications (±200-mV 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: 32 µA to 175 µA
    • SLEEP mode: 6 µA
    • DEEPSLEEP mode: 2.7 µA
    • SHUTDOWN mode: <1 µA
  • High-voltage tolerance of 45 V 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
  • 400-kHz I 2C serial communications with optional CRC support
  • Programmable LDO for external system usage
  • 20-pin QFN (RGR) package

The Texas Instruments BQ76907 provides a highly integrated, high-accuracy battery monitor and protector for 2-series to 7-series Li-ion, Li-polymer, LiFePO 4 (LFP), and LTO battery packs. The device includes a high-accuracy monitoring system with a dedicated coulomb counter and accumulated charge integration, a highly configurable protection subsystem, and support for host-controlled cell balancing. Integration includes low-side protection NFET drivers, a programmable LDO for external system use, and an I 2C host communication interface supporting up to 400-kHz operation with optional CRC. The BQ76907 is available in a 20-pin QFN package.

The Texas Instruments BQ76907 provides a highly integrated, high-accuracy battery monitor and protector for 2-series to 7-series Li-ion, Li-polymer, LiFePO 4 (LFP), and LTO battery packs. The device includes a high-accuracy monitoring system with a dedicated coulomb counter and accumulated charge integration, a highly configurable protection subsystem, and support for host-controlled cell balancing. Integration includes low-side protection NFET drivers, a programmable LDO for external system use, and an I 2C host communication interface supporting up to 400-kHz operation with optional CRC. The BQ76907 is available in a 20-pin QFN package.
filter 尋找其它 電池監控器和平衡器
下載 觀看有字幕稿的影片 影片
索取更多資訊

在 NDA 下提供功能安全資訊，例如失效模式、影響和診斷分析 (FMEDA)、安全分析報告和安全手冊。立即索取

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 7
重要文件 類型 標題 格式選項 日期
* Data sheet BQ76907 2-Seriesto 7-SeriesHigh Accuracy Battery Monitor and Protector for Li-Ion, Li-Polymer, LiFePO4(LFP), and LTO Battery Packs datasheet PDF | HTML 2023年 11月 3日
Application note Why is short-circuit protection more challenging for high- side driver battery packs than low-side driver? PDF | HTML 2026年 1月 23日
Application note Understanding BQ76905, BQ76907 Voltage Sampling Measurement Loop PDF | HTML 2025年 9月 11日
Application note Cell Balancing With BQ7690x Battery Monitors PDF | HTML 2024年 1月 4日
User guide BQ7690x Software Development Guide PDF | HTML 2023年 12月 11日
User guide BQ76907 Technical Reference Manual PDF | HTML 2023年 11月 17日
Certificate BQ76907EVM EU Declaration of Conformity (DoC) 2023年 11月 15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

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
TI.com 無法提供
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 (...)

支援產品和硬體

支援產品和硬體
下載選項
驅動程式或資料庫

BQ7690X-CODE-EXAMPLES — BQ7690x battery monitors code examples

Microcontroller sample code examples for interfacing with BQ7690x battery monitors and protectors.
支援產品和硬體

支援產品和硬體
下載選項
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。
Design guide: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RGR) 20 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • 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

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片