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.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | BQ41Z90 Highly Integrated 3–16 Cell Battery Fuel Gauge with IT-DZT Algorithm and ECC Authentication 数据表 (Rev. B) | PDF | HTML | 2026-10-20 | ||
| * | 用户指南 | BQ41z90 Technical Reference Manual | 2024-9-12 | |||
| 应用手册 | Dynamic Z-Track™ 技术:适用于动态负载应用的高级电池电 量监测算法 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2025-10-13 | |
| 技术文章 | 重新定义电池精度:Dynamic Z-Track™ 算法如何预测不稳定 的电池负载 | PDF | HTML | 英语版 | PDF | HTML | 2025-8-13 | |
| 产品概述 | 业界首款采用动态 Z-Track™ 技术的完全集成式 3-16S 串联电 池电量监测计、监控器和保护器 | PDF | HTML | 英语版 | PDF | HTML | 2025-3-26 | |
| 应用手册 | 如何创建认证密钥并将其编程到 TI 电池电量监测计中 | PDF | HTML | 英语版 | PDF | HTML | 2025-3-14 |
设计与开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
BQ41Z90EVM — BQ41Z90 评估模块
BQSTUDIO-TEST — Battery Management Studio (bqStudio) Software – Beta version downloads
Battery Management Studio (bqStudio) 提供一整套稳健的工具来帮助您评估、配置、测试 TI 电池管理产品以及利用其进行设计或以其他方式对其加以利用。这包括提供对寄存器和数据内存的完全访问,其中包括支持实时查看、绘制和记录轻松连接以发送命令、控制低级通信和 I/O,以及自动和指导支持配置、校准、执行学习周期以及生成有用的文件以将器件投入生产。
bqStudio 不支持 bq20xxx 和 bq30xxx 等旧产品。可从相应的产品页面下载特定的评估软件。您为 bqStudio 下载的最新化学物质更新程序也需要更新版 bqStudio。
BQ41Z90-FW — BQ41Z90 device firmware
BQSTUDIO-GUI — Battery Management Studio (bqStudio) Software - Web Based Version
Battery Management Studio (bqStudio) 提供一整套稳健的工具来帮助您评估、配置、测试 TI 电池管理产品以及利用其进行设计或以其他方式对其加以利用。这包括提供对寄存器和数据内存的完全访问,其中包括支持实时查看、绘制和记录轻松连接以发送命令、控制低级通信和 I/O,以及自动和指导支持配置、校准、执行学习周期以及生成有用的文件以将器件投入生产。
bqStudio-web 不支持 bq20xxx、bq30xxx 和 bq40xxx 等旧产品。可从相应的产品页面下载特定的评估软件。您为 bqStudio 下载的最新化学物质更新程序也需要更新版 bqStudio。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| HTQFP (PVP) | 64 | Ultra Librarian |
订购和质量
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