BQ79631-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
- Differential voltage measurements with integrated filtering
- Pack+ , Fuse, Link±, Charge± measure
- Isolation resistance voltage measurement
- Integrated precision current measurement
- Support low-side shunt resistor
- Insulation resistance monitoring capability
- 8 GPIO inputs as IO, SPI, ADC, and temperature sense
- Isolated differential daisy-chain communication with optional ring architecture
- Simplifies BJB/BDU system by eliminating safety MCU, CAN transceivers, and multi-wire interface
- UART host interface
- Synchronized current and voltage measurements
- Stackable as well as syncs with other cell and UI monitors 16S (BQ79616-Q1, BQ79656-Q1), 14S (BQ79614-Q1, BQ79654-Q1), 12S (BQ79612-Q1, BQ79652-Q1) and BQ79631
- Built-in SPI master
BQ79631-Q1 provides high-accuracy measurement capable of measuring divided down voltages from high voltage nodes such as Pack+ (HV Battery Positive terminal), Fuse, Charge (Port), Link (Load) in a battery junction box (BJB) or battery disconnect unit (BDU) system. Key voltage measurements can make use of the integrated digital low-pass filters. The device has a highly accurate integrated current sense ADC capable of measuring current in low-side shunt resistor. The device is capable of measuring the insulation resistance with internal ADC and able to control any switching scheme needed for this measurement. There are eight GPIOs/auxillary inputs that can be used for thermistor measurement, driving relays, measuring voltages, and being a master SPI interface to peripheral SPI devices. The isolated bi-directional daisy-chain ports support both capacitor or transformer based isolation. The device also supports communication over UART.
Host communication to the BQ79631-Q1 can be connected via the devices dedicated UART interface or through a communication bridge device, BQ79600-Q1. Additionally, an isolated, differential daisy-chain communication interface allows the host to communicate with the other UIR monitors and even cell monitors 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.
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技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | BQ79631-Q1 UIR Sensor with Voltage, Current, and Insulation Resistance Monitoring in EV/BMS HV Automotive Applications datasheet (Rev. A) | PDF | HTML | 2023年 11月 9日 |
Application note | BQ79616-Q1 Software Design Reference (Rev. B) | PDF | HTML | 2023年 8月 21日 | |
Technical article | How to design an intelligent battery junction box for advanced EV battery manageme | PDF | HTML | 2023年 1月 4日 | |
Technical article | Intelligent junction box with voltage and current synchronization in EVs | PDF | HTML | 2022年 4月 8日 | |
Certificate | BQ79631EVM-039 EU RoHS Declaration of Conformity (DoC) | 2021年 6月 9日 | ||
EVM User's guide | BQ79631EVM Evaluation Module User's Guide | PDF | HTML | 2021年 2月 13日 | |
User guide | BQ79616-Q1 and BQ75614-Q1 Graphical User Interface (GUI) User's Guide | 2020年 12月 14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)。
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-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
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
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。