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BQ7973X-Q1-DESIGN — BQ7973x-Q1 design resources
BQ7973x-Q1 documentation repository
BQ79731-Q1
- AEC-Q100 qualified –40°C to +125°C
- Functional safety compliant
- Documentation to aid ISO 26262 system design
- Systematic capability up to ASIL D
- Hardware capability up to ASIL D
- 17 single-ended voltage channels
- High voltage pack, link, charge measurement accuracy update to 0.2%
- Pack and cell VI sync to 64µS
- 2 independent current sense ADCs (BQ79731-Q1)
- ±0.15% gain error drift
- Input range = ±275mV
- 2 Over current detect comparators (BQ79731-Q1)
- ±1% accuracy
- Selectable bi-directional thresholds
- Programmable OC
- Integrated Coulomb counting (BQ79731-Q1)
- 15 GPIO inputs as IO, I2C, SPI, ADC and temp sense
- Dedicated MOSFET switch drive pins
- Intelligent SPI contoller HUB
- Support multiple SPI peripheral devices
- HW pin to trigger contactor drivers and Pyro Fuse drivers
- Stackable and register map compatible with BQ7971x-Q1 cell monitors
The device can be used to measure divided down high voltage nodes in a battery system. It can measure voltage across Fuse, Contactors and check isolation voltage in a battery junction box (BJB) system. The device has two integrated current sense (BQ79731-Q1) paths supporting low-side shunt resistor. Coulomb counting (BQ79731-Q1) function is available for accurate SOC calculation. There are 15 GPIOs/auxiliary inputs that can be used for HV measurements, thermistor measurements, and driving relays. There are four SW outputs that can be used to drive MOSFET switches in the measurement path. The device can function as a SPI HUB and interface with up to eight separate SPI devices/groups. Over current protection response can be achieved autonomously using HW pins for fast protection in dangerous over current events. The isolated bi-directional daisy chain ports support both capacitor and transformer based isolation. The device can also communicate with MCU over SPI and UART.
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檢視所有 9 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | BQ79731-Q1 Pack Voltage Current and Isolation Resistance Monitor for HV Automotive BMS Applications datasheet (Rev. A) | PDF | HTML | 2024年 10月 7日 |
| White paper | 以低雜訊電源裝置簡化電源架構 (Rev. A) | PDF | HTML | 2024年 11月 5日 | |
| White paper | 設計更安全、更智慧且更緊密相連的電池管理系統 | PDF | HTML | 2024年 1月 24日 | |
| Technical article | How solid-state relays simplify insulation monitoring designs in high-voltage applications | PDF | HTML | 2024年 1月 4日 | |
| Application brief | Scaling accurate battery management designs across energy storage systems | PDF | HTML | 2023年 10月 20日 | |
| Technical article | How to design an intelligent battery junction box for advanced EV battery manageme | PDF | HTML | 2023年 1月 4日 | |
| White paper | 電池管理系統創新如何提升 EV 採用率 | PDF | HTML | 2022年 12月 13日 | |
| Certificate | BQ79731Q1EVM EU RoHS Declaration of Conformity (DoC) (Rev. A) | 2022年 11月 3日 | ||
| Technical article | Intelligent junction box with voltage and current synchronization in EVs | PDF | HTML | 2022年 4月 8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)。
驅動程式或資料庫
BQ7973X-Q1-EVALUATION — BQ7973x-Q1 early evaluation files
BQ7973x-Q1 early evaluation files
支援產品和硬體
驅動程式或資料庫
BQ7973X-Q1-FMEDA — BQ7973x-Q1 FMEDA files
BQ7973x-Q1 FMEDA files
支援產品和硬體
驅動程式或資料庫
BQ7973X-Q1-FUNCTIONAL-SAFETY-DOCS — BQ7973x-Q1 functional safety documents
BQ7973x-Q1 functional safety documents
支援產品和硬體
參考設計
TIDA-010272 — 適用於儲能系統的 1500V 高電壓機架監測器單元參考設計
This reference design is a high-voltage, current and insulation impedance accuracy lithium-ion (Li-ion), LiFePO4 battery rack. The design monitors four high-voltage bus inputs, one shunt current and temperature, and one insulation impedance of the battery. The design protects the battery rack to (...)
Design guide: PDF
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTQFP (PHP) | 48 | Ultra Librarian |
訂購與品質
內含資訊：
- 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
內含資訊：
- 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。