BQ27Z758
- Integrated battery gas gauge and protector
- Flash-programmable custom BQBMP RISC CPU
- SHA-256 authentication
- 400kHz I2C bus communications interface
- Low-voltage (2.0V) operation
- Zero volt charging with no inhibit (ZVCHG) for systems with secondary protectors
- Two independent
precision 16-bit ADCs
- Coulomb counting ADC with current sense resistor down to 1mΩ
- Voltage ADC for cell voltage and external and internal temperature sensors
- Battery fuel
gauging based on patented Impedance Track™
technology
- Models battery discharge curve for accurate time-to-empty predictions
- Automatically adjusts for aging, temperature, and rate-induced effects on the battery
- Battery Kelvin sense differential analog output pins with built-in protection
- High-side or low-side current sensing
- Programmable
hardware-based protection
- High-side FET gate drivers
- Overvoltage and undervoltage (OVP and UVP)
- Overcurrent in discharge and overcurrent in charge (OCD and OCC)
- Short circuit in discharge (SCD)
- Firmware-based overtemperature (OT)
- Reduced typical
power modes
- SLEEP mode: 20µA
- SHIP mode: 10µA
- SHELF mode: 5µA
- SHUTDOWN mode: 0.2µA
- Ultra-compact, 15-ball NanoFree™ DSBGA
The Texas Instruments BQ27Z758 Impedance Track™ gas gauge solution is a highly integrated, accurate 1-series cell gas gauge and protection solution.
The BQ27Z758 device provides a fully integrated, pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, differential battery sensing analog output, and authentication for 1-series cell Li-ion and Li-polymer battery packs.
The BQ27Z758 gas gauge communicates through an I2C compatible interface and combines an ultra-low power TI BQBMP processor, high accuracy analog measurement capabilities, integrated flash memory, N-CH high-side FET drive, and a SHA-2 Authentication transform 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 | BQ27Z758 Impedance Track Technology Battery Gas Gauge and Protection Solution for 1-Series Cell Li-Ion Battery Packs datasheet (Rev. C) | PDF | HTML | 2025/9/11 | ||
| * | 使用指南 | BQ27Z746-R1 and BQ27Z758 Technical Reference Manual (Rev. E) | PDF | HTML | 2026/6/18 | ||
| 應用說明 | How to Create and Program Authentication Keys into TI Battery Fuel Gauges | PDF | HTML | 2025/3/5 | |||
| 應用說明 | BQ27Z746 Hardware Protection Threshold Calibration | PDF | HTML | 2024/12/2 | |||
| 應用說明 | Design Flexibility for Reverse Charge Protection Using BQ27Z746 | PDF | HTML | 2023/8/2 |
設計與開發
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BQ27Z746EVM-047 — BQ27Z746 評估模組，具有保護解決方案的 Impedance Track™ 技術電池氣量計
BQ27Z746EVM-047 評估模組 (EVM) 是適用 BQ27Z746 電池管理器的完整評估系統。EVM 包含 BQ27Z746，具備整合式保護電路模組和與 Windows® PC 軟體連結。提供 BQ27Z746 積體電路 (IC) 和所有板載元件以監控重要電池芯參數、預測電池芯容量和健康狀態，並防止 1 串聯電池芯鋰離子或鋰聚合物電池組中的電池芯過度充電、過度放電、短路和過電流。BQ27Z746EVM 使用 I2C 通訊協定、EV2400 與 bqStudio 軟體 GUI 來讀取 BQ27Z746 資料暫存器、為不同電池組配置進行 BQ27Z746 (...)
BQ27Z758-FW — BQ27Z758 device firmware
BQ-BMS-PROGRAMMER-SW — Command line programmers for BQ products
BQ-BATTERY-PROGRAMMER-SW 軟體開發套件 (SDK) 是一系列穩固的軟體命令列工具，可協助使用 TI 電池管理產品進行編程、測試或組裝電池組作業。此軟體中的可執行檔可與 EV2300 通訊收發器的 MKST-3P-ALT-EV2300 MKS 技術替代產品配合使用。這些可執行檔可與單站點一起使用，並可透過使用 MKS Technology Inc. 提供的附加軟體和 GUI 擴展到多個站點。此軟體不支援多工作站。
每次下載都會有多個可執行檔，通常每個平台一個。另外也支援較舊的產品，如 BQ20xxx 和 BQ30xxx。我們提供使用 C++ 程式語言 API 和 (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YAH) | 15 | 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。