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功能相似於所比較的產品。
BQ79656-Q1
- Qualified for automotive applications
- AEC-Q100 Qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature range
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
-
Functional Safety-Compliant
- Developed for functional safety applications
- Documentation to aid ISO 26262 system design
- Systematic capability up to ASIL D
- Hardware capability up to ASIL D
- +/- 1.5mV ADC accuracy
- Pin-package and software compatible device family:
- Stackable monitor 16S (BQ79616-Q1, BQ79616H-Q1, BQ79656-Q1), 14S (BQ79614-Q1, BQ79654-Q1), and 12S (BQ79612-Q1, BQ79652-Q1)
- Standalone monitor 48V system (BQ75614-Q1)
- Supports current-sense measurement
- Built-in redundancy path for voltage and temperature and current diagnostics
- Highly accurate cell voltage measurements within 128µs for all cell channels
- Integrated post-ADC configurable digital low-pass filters
- Supports bus bar connection and measurement
- Built-in host-controlled hardware reset to emulate POR-like device reset
- Supports internal cell balancing
- Balancing current at 240mA
- Built-in balancing thermal management with automatic pause and resume control
- Isolated differential daisy chain communication with optional ring architecture
- Embedded fault signal and heartbeat through communication line
- 5V LDO output to power external digital isolator
- UART/SPI host interface/communication bridge device BQ79600-Q1
- Built-in SPI master
The BQ7965x-Q1 family of devices provides high-accuracy cell voltage measurements for a minimum of 6S to a maximum of 12S (BQ79652-Q1), 14S (BQ79654-Q1), or 16S (BQ79656-Q1) battery modules in less than 200 µs while these devices also support shunt-resistor current sense measurement. The integrated front-end filters enable the system to implement with simple, low voltage raring, differential RC filters on the cell input channels. The integrated, post-ADC, low-pass filters enable filtered, DC-like, voltage measurements. This family of devices also supports integrated current sensing capabilities with option to synchronize with cell voltage measurements for better state of charge (SOC) calculation. The device supports autonomous internal cell balancing with temperature monitoring to auto-pause and resume balancing to avoid an overtemperature condition.
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技術文件
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| 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 | BQ7965x-Q1 Functional Safety-Compliant Automotive 16S/14S/12S Battery Monitor, Balancer and Integrated Hardware Protector with Integrated Current Sense datasheet (Rev. C) | PDF | HTML | 2026/6/11 | ||
| 使用指南 | BQ7961x-Q1 Design Recommendations for High Voltage Automotive BMS (Rev. B) | PDF | HTML | 2025/6/18 | |||
| 應用說明 | BQ79616-Q1 Daisy Chain Communications | PDF | HTML | 2023/10/26 | |||
| 使用指南 | BQ79616-Q1 and BQ75614-Q1 Graphical User Interface (GUI) User's Guide | 2020/12/14 | ||||
| 技術文章 | Enhance thermal management in EVs with autonomous cell balancing | PDF | HTML | 2020/12/9 | |||
| 技術文章 | Conserve battery power in HEV/EVs with automatic host reverse wakeup | PDF | HTML | 2020/12/4 | |||
| 功能安全資訊 | Functional Safety Considerations in Battery Management for Vehicles | 2020/9/17 |
設計與開發
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開發板
BQ79656EVM-021 — BQ79656-Q1 車用 16-S 精密電池監控器平衡器整合式保護器評估模組
BQ79656EVM-021 是 BQ79656-Q1 的評估模組 (EVM)。BQ79656-Q1 可為六至十六顆電池提供高準確度的通道量測，以及整合式電流量測。BQ79656-Q1 隨附菊輪鍊通訊埠，裝置可堆疊以支援電動車傳動系統電池組中的大型堆疊配置。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTQFP (PAP) | 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。