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.
技術文件
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檢視所有 6 | 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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| 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。