韌體
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.
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| 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | BQ41Z90 Highly Integrated 3–16 Cell Battery Fuel Gauge with IT-DZT Algorithm and ECC Authentication datasheet (Rev. A) | PDF | HTML | 2024年 12月 21日 |
| Technical article | 「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 | 2025年 8月 13日 | |
| Application note | Dynamic Z-Track™ Technology: An Advanced Battery Gauging Algorithm for Dynamic Load Applications (Rev. A) | PDF | HTML | 2025年 7月 15日 | |
| Product overview | Industry-First Fully Integrated 3-16S Battery Fuel Gauge, Monitor, and Protector, with Dynamic Z-Track | PDF | HTML | 2025年 3月 7日 | |
| Application note | How to Create and Program Authentication Keys into TI Battery Fuel Gauges | PDF | HTML | 2025年 3月 5日 | |
| User guide | BQ41z90 Technical Reference Manual | 2024年 9月 12日 |
設計與開發
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開發板
BQ41Z90EVM — BQ41Z90 評估模組
BQ41Z90EVM 是用於評估 BQ41Z90 電量計功能的完整系統。此電池電量計適用於最多由 16 顆電池串聯之多節電池系統供電的應用程式。該評估模組 (EVM) 包含一個 BQ41Z90 電路模組、一個電流檢測電阻與六個熱敏電阻。
開發模組 (EVM) 的 GUI
BQSTUDIO-GUI — Battery Management Studio (bqStudio) Software - Web Based Version
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
| 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
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。