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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產品規格表

document-pdfAcrobat BQ76952 3-Series to 16-Series High Accuracy Battery Monitor and Protector for Li-Ion, Li-Polymer, and LiFePO4 Battery Packs datasheet (Rev. B) (英文) PDF | HTML

使用指南

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BQ76952 Technical Reference Manual (Rev. B) (英文)

BQ76952

現行

產品規格表

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產品詳細資料

Rating

Catalog

Number of series cells (max)

Number of series cells (min)

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)

Communication interface

HDQ, I2C, SPI

Device type

Cell monitor and balancer

Operating temperature range (°C)

-40 to 85

Battery overvoltage protection (min) (V)

Battery overvoltage protection (max) (V)

5.5

Operating current (typ) (µA)

250

Rating

Catalog

Number of series cells (max)

Number of series cells (min)

Features

Vin (max) (V)

Communication interface

HDQ, I2C, SPI

Device type

Cell monitor and balancer

Operating temperature range (°C)

-40 to 85

Battery overvoltage protection (min) (V)

Battery overvoltage protection (max) (V)

5.5

Operating current (typ) (µA)

250

TQFP (PFB)

81 mm² (9 mm × 9 mm)

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.

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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	下載最新的英文版本		日期
*	資料表	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			2021/11/15
*	使用指南	BQ76952 Technical Reference Manual (Rev. B)	PDF \| HTML			2022/5/5
	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	BQ769X2 OTP Program Example Guide With Sealed Configuration	PDF \| HTML			2025/2/24
	技術文章	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	Download English Version (Rev.A)	PDF \| HTML	2024/5/21
	應用說明	BQ769x2 Frequently Asked Questions	PDF \| HTML			2024/3/29
	Application brief	Scaling accurate battery management designs across energy storage systems	PDF \| HTML			2023/10/20
	應用說明	Design Considerations of Stacked BQ769x2 With High-Side N-MOSFET	PDF \| HTML			2023/2/9
	應用說明	Using Low-Side FETs with the BQ769x2 Battery Monitor Family (Rev. A)	PDF \| HTML			2022/2/24
	應用說明	Cell Balancing With BQ769x2 Battery Monitors (Rev. A)	PDF \| HTML			2022/2/15
	應用說明	Multiple FETs with the BQ76952, BQ76942 Battery Monitors (Rev. A)				2021/12/3
	技術文章	Pack a punch in battery pack systems with low-cost MCUs	PDF \| HTML			2021/11/16
	應用說明	BQ769x2 Software Development Guide (Rev. B)	PDF \| HTML			2021/8/26
	應用說明	BQ769x2 Calibration and OTP Programming Guide (Rev. A)	PDF \| HTML			2021/8/6
	應用說明	Pin Equivalent Diagrams for the BQ76952, BQ76942, and BQ769142				2021/5/6
	應用說明	BQ76952 High Voltage Stress Report	PDF \| HTML			2021/2/25
	技術文章	How to stack battery monitors for high-cell-count industrial applications	PDF \| HTML			2021/2/11
	應用說明	BQ76942 IEC ESD 61000-4-2 ESD Test Report				2020/11/16
	應用說明	Easy Configuration of BQ76942/52 Battery Monitors (Rev. A)				2020/10/1
	技術文章	CURRENTly questioning the accuracy of your battery monitor? Improve battery safety	PDF \| HTML			2020/5/28
	技術文章	Improving voltage measurement accuracy in battery monitoring systems	PDF \| HTML			2020/4/1
	技術文章	Improving temperature measurement accuracy in battery monitoring systems	PDF \| HTML			2020/2/20
	應用說明	Parallel Paths with the BQ769x2 Battery Monitor				2020/1/9
	技術文章	Next-generation battery monitors: how to improve battery safety while improving ac	PDF \| HTML			2020/1/6

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 (...)

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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 (...)

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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

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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。

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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。

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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 (...)

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