BQ41Z90
- Highly integrated battery pack manager for 3 to
16 cells in series applications
- Ultra-low power 32-bit RISC processor
- ADC measurements for up to 16 cells in series with 80V tolerance
- High Accuracy SoC and SoH with Dynamic Z Track™ gauging algorithm
- Certificate-based security protected flash memory
- Precision analog front end with
two independent ADCs:
- High-accuracy 18-bit integrating delta-sigma coulomb counter
- High-accuracy 16-bit delta-sigma with input translation and multiplexer
- Support for simultaneous current and voltage sampling
- Supports up to eight external thermistor measurements and an internal temperature sensor
- Strong High-side NMOS FET drive with fast turn-on and turn-off time
- Charge pump support for pre-charge and pre-discharge NMOS FET drivers
- Parallel configuration support for removable battery with separate charger and system ports
- Cell balancing support up to 50mA bypass per cell
- Diagnostic lifetime data monitor and recorder
- Multiple host communication support:
- I2C (up to 1MHz )
- SMBus 3.2 (up to 1MHz)
- Multiple power modes for low quiescent current operation
- SHA-1, SHA-2, or EC-KCDSA authentication for robust battery pack security
The Texas Instruments BQ41Z90 is a fully integrated pack-based battery pack manager solution, that provides a flash programmable CPU, safety protection, and elliptical curve cryptography (ECC) authentication for 3 to 16 cells in series Li-ion, LiFeP4, NiMH, and Li-polymer battery packs.
The BQ41Z90 battery pack manager communicates through SMBus v3.2 or I2C-compatible interfaces, and combines an ultra-low-power, high-speed 32-bit processor, high-accuracy analog measurement capabilities, integrated flash memory, an array of peripheral IO, an NMOS protection FET drive, and a SHA-1, SHA-2, or EC-KCDSA authentication responder into a complete, high-performance battery management solution.
技術文件
| 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 | BQ41Z90 Highly Integrated 3–16 Cell Battery Fuel Gauge with IT-DZT Algorithm and ECC Authentication datasheet (Rev. A) | PDF | HTML | 2024/12/21 | ||
| * | 使用指南 | BQ41z90 Technical Reference Manual | 2024/9/12 | |||
| 技術文章 | 「重新定義電池準確度：Dynamic Z-Track™ 演算法如何預測 不可預測的電池負載。」 | PDF | HTML | Download English Version | PDF | HTML | 2025/8/13 | |
| 應用說明 | Dynamic Z-Track™ Technology: An Advanced Battery Gauging Algorithm for Dynamic Load Applications (Rev. A) | PDF | HTML | 2025/7/15 | |||
| Product overview | Industry-First Fully Integrated 3-16S Battery Fuel Gauge, Monitor, and Protector, with Dynamic Z-Track | PDF | HTML | 2025/3/7 | |||
| 應用說明 | How to Create and Program Authentication Keys into TI Battery Fuel Gauges | PDF | HTML | 2025/3/5 |
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)。
BQ41Z90EVM — BQ41Z90 評估模組
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。
BQ41Z90-FW — BQ41Z90 device firmware
BQSTUDIO-GUI — Battery Management Studio (bqStudio) Software - Web Based Version
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。
bqStudio-web 不支援 bq20xxx、bq30xxx 和 bq40xxx 等較舊的產品。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。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTQFP (PVP) | 64 | Ultra Librarian |
訂購與品質
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。