BQ79614-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 48 V system (BQ75614-Q1)
- Built-in redundancy path for voltage and temperature diagnostics
- Highly accurate cell voltage measurements within 128 µs 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 240 mA
- 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
- UART/SPI host interface/communication bridge device BQ79600-Q1
- Built-in SPI master
BQ79612-Q1, BQ79614-Q1, BQ79616-Q1 and BQ79616H-Q1 provide high-accuracy cell voltage measurements in less than 200 µs for 12S, 14S and 16S battery modules in high-voltage battery management systems in HEV/EV. The family of monitors offers different channel options in the same package type, providing pin-to-pin compatibility and supporting high reuse of the established software and hardware across any platform. The integrated front-end filters enable the system to implement with simple, low voltage rating, differential RC filters on the cell input channels. The integrated, post-ADC, low-pass filters enable filtered, DC-like, voltage measurements for better state of charge (SOC) calculation. This device supports autonomous internal cell balancing with temperature monitoring to auto-pause and resume balancing to avoid an overtemperature condition.
The inclusion of the isolated, bidirectional, daisy chain ports supports both capacitor- and transformer-based isolation, allowing the use of the most effective components for centralized or distribution architectures commonly found in the xEV powertrain system. This device also includes eight GPIOs or auxiliary inputs that can be used for external thermistor measurements.
Host communication to the BQ7961x-Q1 family of devices can be connected via the devices dedicated UART interface or through a communication bridge device, BQ79600. Additionally, an isolated, differential daisy-chain communication interface allows the host to communicate with the entire battery stack over a single interface. in the event of a communication line break, the daisy-chain communication interface is configurable to a ring architecture that allows the host to talk to devices at either end of the stack.
All references to the BQ79616-Q1 device also apply to the BQ79616H-Q1 device.
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技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | BQ79616-Q1, BQ79616H-Q1, BQ79614-Q1, BQ79612-Q1Functional Safety-Compliant Automotive 16S/14S/12S Battery Monitor, Balancer and Integrated Hardware Protector datasheet (Rev. E) | PDF | HTML | 2023年 11月 6日 |
Application note | BQ79616-Q1 Daisy Chain Communications | PDF | HTML | 2023年 10月 26日 | |
Application note | BQ7961x-Q1 Design Recommendations for High Voltage Automotive BMS (Rev. A) | PDF | HTML | 2023年 10月 19日 | |
Application note | BQ79616-Q1 Software Design Reference (Rev. B) | PDF | HTML | 2023年 8月 21日 | |
Technical article | Intelligent junction box with voltage and current synchronization in EVs | PDF | HTML | 2022年 4月 8日 | |
Technical article | Save space, time and bill of materials with a smarter BMS for 48-V systems | PDF | HTML | 2021年 9月 8日 | |
User guide | BQ79616-Q1 and BQ75614-Q1 Graphical User Interface (GUI) User's Guide | 2020年 12月 14日 | ||
Technical article | Conserve battery power in HEV/EVs with automatic host reverse wakeup | PDF | HTML | 2020年 12月 4日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
BQ79616EVM-021 — 適用 16-S 精密電池監控器、平衡器、整合式保護器的 BQ79616 評估模組
BQ79616 評估模組 (EVM) 是適合 BQ79616-Q1 的開發平台。BQ79616-Q1 可為六至 16 個電池芯提供高準確度與通道量測。BQ79616-Q1 隨附菊輪鍊通訊埠且可堆疊 (最多 35 個裝置),以支援電動車傳動系統電池組中的大型堆疊配置。
BQ7X61X-Q1-DEVELOPMENT — BQ7x61x-Q1 development files
支援產品和硬體
產品
電池監控器和平衡器
BQ7X61X-Q1-EVALUATION — BQ7x61x-Q1 evaluation files
支援產品和硬體
產品
電池監控器和平衡器
BQ7X61X-Q1-FMEDA — BQ7x61x-Q1 FMEDA files
支援產品和硬體
產品
電池監控器和平衡器
BQ7X61X-Q1-FUNCTIONAL-SAFETY-DOCS — BQ7x61x-Q1 functional safety documents
支援產品和硬體
產品
電池監控器和平衡器
MNOVA-3P-NOVACARTS — MicroNova NovaCarts cell module controller (CMC) simulator for validating battery management systems
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
- 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
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點