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電池管理 IC
電池監控器和平衡器

BQ76952

現行

適用於鋰離子、鋰聚合物和 LiFePO4 的 3s 至 16s 高準確度電池監控器和保護器

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BQ76952

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Number of series cells (max) 16 Number of series cells (min) 3 Features Digital output, High-side driver, I2C support, Integrated ADC, LDO output, Multi-cell support, One-time-programmable (OTP) memory, Open-wire detection, Overcurrent in charging protection, Overcurrent in discharging protection, Overtemperature protection, Overvoltage protection, Scratchpad memory, Short-current detection, Temperature sensing, Undertemperature protection, Undervoltage protection Vin (max) (V) 80 Communication interface HDQ, I2C, SPI Device type Cell monitor and balancer Operating temperature range (°C) -40 to 85 Battery overvoltage protection (min) (V) 1 Battery overvoltage protection (max) (V) 5.5 Operating current (typ) (µA) 250
Rating Catalog Number of series cells (max) 16 Number of series cells (min) 3 Features Digital output, High-side driver, I2C support, Integrated ADC, LDO output, Multi-cell support, One-time-programmable (OTP) memory, Open-wire detection, Overcurrent in charging protection, Overcurrent in discharging protection, Overtemperature protection, Overvoltage protection, Scratchpad memory, Short-current detection, Temperature sensing, Undertemperature protection, Undervoltage protection Vin (max) (V) 80 Communication interface HDQ, I2C, SPI Device type Cell monitor and balancer Operating temperature range (°C) -40 to 85 Battery overvoltage protection (min) (V) 1 Battery overvoltage protection (max) (V) 5.5 Operating current (typ) (µA) 250
TQFP (PFB) 48 81 mm² 9 x 9
  • Battery monitoring capability for 3-series to 16-series cells
  • Integrated charge pump for high-side NFET protection with optional autonomous recovery
  • Extensive protection suite including voltage, temperature, current, and internal diagnostics
  • Two independent ADCs
    • Support for simultaneous current and voltage sampling
    • High-accuracy coulomb counter with input offset error < 1 µV (typical)
    • High accuracy cell voltage measurement < 10 mV (typical)
  • Wide-range current applications (±200-mV measurement range across sense resistor)
  • Integrated secondary chemical fuse drive protection
  • Autonomous or host-controlled cell balancing
  • Multiple power modes (typical battery pack operating range conditions)
    • NORMAL mode: 286 µA
    • Multiple SLEEP mode options: 24 µA to 41 µA
    • Multiple DEEPSLEEP mode options: 9 µA to 10 µA
    • SHUTDOWN mode: 1 µA
  • High-voltage tolerance of 85 V on cell connect and select additional pins
  • Tolerant of random cell attach sequence on production line
  • Support for temperature sensing using internal sensor and up to nine external thermistors
  • Integrated one-time-programmable (OTP) memory programmable by customers on production line
  • Communication options include 400-kHz I2C, SPI, and HDQ one-wire interface
  • Dual-programmable LDOs for external system usage
  • 48-pin TQFP package (PFB)
  • Battery monitoring capability for 3-series to 16-series cells
  • Integrated charge pump for high-side NFET protection with optional autonomous recovery
  • Extensive protection suite including voltage, temperature, current, and internal diagnostics
  • Two independent ADCs
    • Support for simultaneous current and voltage sampling
    • High-accuracy coulomb counter with input offset error < 1 µV (typical)
    • High accuracy cell voltage measurement < 10 mV (typical)
  • Wide-range current applications (±200-mV measurement range across sense resistor)
  • Integrated secondary chemical fuse drive protection
  • Autonomous or host-controlled cell balancing
  • Multiple power modes (typical battery pack operating range conditions)
    • NORMAL mode: 286 µA
    • Multiple SLEEP mode options: 24 µA to 41 µA
    • Multiple DEEPSLEEP mode options: 9 µA to 10 µA
    • SHUTDOWN mode: 1 µA
  • High-voltage tolerance of 85 V on cell connect and select additional pins
  • Tolerant of random cell attach sequence on production line
  • Support for temperature sensing using internal sensor and up to nine external thermistors
  • Integrated one-time-programmable (OTP) memory programmable by customers on production line
  • Communication options include 400-kHz I2C, SPI, and HDQ one-wire interface
  • Dual-programmable LDOs for external system usage
  • 48-pin TQFP package (PFB)

The Texas Instruments BQ76952 device is a highly integrated, high-accuracy battery monitor and protector for 3-series to 16-series Li-ion, Li-polymer, and LiFePO4 battery packs. The device includes a high-accuracy monitoring system, a highly configurable protection subsystem, and support for autonomous or host controlled cell balancing. Integration includes high-side charge-pump NFET drivers, dual programmable LDOs for external system use, and a host communication peripheral supporting 400-kHz I2C, SPI, and HDQ one-wire standards. The BQ76952 device is available in a 48-pin TQFP package.

The Texas Instruments BQ76952 device is a highly integrated, high-accuracy battery monitor and protector for 3-series to 16-series Li-ion, Li-polymer, and LiFePO4 battery packs. The device includes a high-accuracy monitoring system, a highly configurable protection subsystem, and support for autonomous or host controlled cell balancing. Integration includes high-side charge-pump NFET drivers, dual programmable LDOs for external system use, and a host communication peripheral supporting 400-kHz I2C, SPI, and HDQ one-wire standards. The BQ76952 device is available in a 48-pin TQFP package.
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BQ76942 現行 3 串聯至 10 串聯多芯電池監控器和保護器 Same features as BQ76952, but optimized for up to 10s battery packs

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重要文件 類型 標題 格式選項 日期
* Data sheet BQ76952 3-Series to 16-Series High Accuracy Battery Monitor and Protector for Li-Ion, Li-Polymer, and LiFePO4 Battery Packs datasheet (Rev. B) PDF | HTML 2021年 11月 15日
* User guide BQ76952 Technical Reference Manual (Rev. B) PDF | HTML 2022年 5月 11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 BQ769X2 OTP Program Example Guide With Sealed Configuration 2025年 2月 24日
Technical article 為踏板供電：實現適用於電動自行車與電動機車且續航力更長 的 13S、48-v 鋰離子電池組 (Rev. A) PDF | HTML 2024年 5月 21日
Application note BQ769x2 Frequently Asked Questions PDF | HTML 2024年 3月 29日
Application brief Scaling accurate battery management designs across energy storage systems PDF | HTML 2023年 10月 20日
Application note Design Considerations of Stacked BQ769x2 With High-Side N-MOSFET PDF | HTML 2023年 2月 9日
Application note Using Low-Side FETs with the BQ769x2 Battery Monitor Family (Rev. A) PDF | HTML 2022年 2月 24日
Application note Cell Balancing With BQ769x2 Battery Monitors (Rev. A) PDF | HTML 2022年 2月 15日
Application note Multiple FETs with the BQ76952, BQ76942 Battery Monitors (Rev. A) 2021年 12月 3日
Technical article Pack a punch in battery pack systems with low-cost MCUs PDF | HTML 2021年 11月 16日
Application note BQ769x2 Software Development Guide (Rev. B) PDF | HTML 2021年 8月 26日
Application note BQ769x2 Calibration and OTP Programming Guide (Rev. A) PDF | HTML 2021年 8月 6日
Application note Pin Equivalent Diagrams for the BQ76952, BQ76942, and BQ769142 2021年 5月 6日
Application note BQ76952 High Voltage Stress Report PDF | HTML 2021年 2月 25日
Technical article How to stack battery monitors for high-cell-count industrial applications PDF | HTML 2021年 2月 11日
Application note BQ76942 IEC ESD 61000-4-2 ESD Test Report 2020年 11月 16日
Application note Easy Configuration of BQ76942/52 Battery Monitors (Rev. A) 2020年 10月 1日
Technical article CURRENTly questioning the accuracy of your battery monitor? Improve battery safety PDF | HTML 2020年 5月 28日
Technical article Improving voltage measurement accuracy in battery monitoring systems PDF | HTML 2020年 4月 1日
Technical article Improving temperature measurement accuracy in battery monitoring systems PDF | HTML 2020年 2月 20日
Application note Parallel Paths with the BQ769x2 Battery Monitor 2020年 1月 9日
Technical article Next-generation battery monitors: how to improve battery safety while improving ac PDF | HTML 2020年 1月 6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

BQ76952EVM — 3-s 至 16-s 鋰離子、鋰聚合物和 LiFePO4 電池監測器和保護器評估模組

BQ76952EVM 評估模組 (EVM) 是一套適用於 BQ76952 (3 芯至 16 芯鋰離子電池監控積體電路) 的完整評估系統。EVM 包含 BQ76952 電路模組，於簡易評估 BQ76952 監控功能。該電路模組包括一個 BQ76952 積體電路 (IC)、感測電阻器、熱敏電阻、功率 FET，還包括防止 16 串聯電池芯鋰離子或鋰聚合物電池組中出現電池過充、過放電、短路和過電流放電、溫度過高和過低所需的其它所有板載元件。電路模組直接連接電池中的電池芯，或可與電源供應器和隨附的電池芯模擬器電阻器連接。藉助板載介面或相容的外部介面電路板和 Microsoft® Windows® PC (...)

使用指南: PDF
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應用軟體及架構

BQ769X2-THERMISTOR-COEFF-CALCULATOR — BQ76952/42 thermistor temperature optimizer - calculate the thermistors coefficients for T range

The BQ769x2 family of battery monitors can support multiple external thermistors. The device includes an internal pullup resistor to bias the thermistor during measurement. The internal pullup resistor has two options which can set the pullup to 18 kΩ or 180 kΩ. The 18-kΩ option (...)
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) 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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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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程式碼範例或展示

SLUC701 — Microcontroller Code Examples for BQ769x2 Battery Monitors

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參考設計

PMP23329 — 雙向 10s-16s 電池組參考設計（搭載 Arm® Cortex® M0+ 處理器）

此參考設計可測量 10s 至 16s LiFePO4 電池組的高電池電壓精度。此參考設計包含高精度電池監測保護器、電量計、二級保護裝置及 M0，用於程式編寫以及與其他裝置通訊。此設計會監控每個電池芯電壓、電池組電壓和電池組電流，以保護 LiFePO4 電池組，防止電池芯過電壓、電池芯欠電壓以及充電和放電過電流。電池電量計可準確預測電池組的容量和使用壽命。此設計採用高壓側 N 通道金屬氧化物半導體場效電晶體 (MOSFET) 架構，並具有強大驅動開啟和關閉能力。
Test report: PDF
參考設計

TIDA-010216 — 適合大容量應用且具低壓側 MOSFET 控制的 16s 電池組參考設計

此參考設計為低待機與運送模式電流消耗，以及高電池電壓準確度 16s 鋰離子 (Li-ion) LiFePO4 電池組。此設計以高準確度監控各電池芯電壓、封裝電流、電池芯和 MOSFET 溫度，並保護鋰離子和 LiFePO4 電池組、防止電池芯過電壓、電池芯欠電壓、過熱、充電和放電過電流和放電短路狀況。五對低側 N 通道 MOSFET 架構結合強大的開啟和關閉功能，讓設計能夠承受更大的充電和放電電流。透過有效的輔助電源供應策略，此參考設計可實現 100-μA 待機與 10-μA 運送模式耗電量，不僅節省更多能源，還可延長運送時間及待機時間。這些功能使此參考設計適用於電信和伺服器的電池備援單元 (...)
Design guide: PDF
參考設計

TIDA-010208 — 具精確電池測量和高側 MOSFET 控制的 10s-16s 電池組參考設計

此參考設計為低待機與運送模式電流消耗，以及高電池電壓準確度 10s–16s 鋰離子 (Li-ion) LiFePO4 電池組設計。此設計以高準確度監控各電池芯電壓、封裝電流、電池芯和 MOSFET 溫度，並保護鋰離子、LiFePO4 電池組，防止電池芯過電壓、電池芯欠電壓、過熱、充電和放電過電流和放電短路狀況。它採用高側 N 通道 MOSFET 架構，並具有強大驅動開啟和關閉能力。透過有效的輔助電源供應策略，此參考設計可達到 100-μA 待機與 10-μA 運送模式耗電量，可節省更多能源，還可延長運送時間及閒置時間。這些功能讓此參考設計高度適用於電動自行車與電動機車電池組應用。
Design guide: PDF
電路圖: PDF
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