BQ79800-Q1
- Upgraded Daisy Chain Interface
- 2x parallel SPI ports to MCU to support split chain with single bridge device
- 2-wire isolated interface, SPI to MCU
- 2Mbps single chain/ring, 4Mbps split chain for up to 4x speed improvement
- Isolation: Transformer or capacitor-only
- Support for ring architecture
- Low Power Reverse wakeup
- Available without ring architecture
- SPI and I2C Controller
- SPI/I2C Hub: can be placed remotely in a system to interface with distant peripheral devices
- SPI controller for up to 8 peripheral devices
- GPIO interrupt detection for signals from peripheral devices
- Package: 48-pin QFP, 0.5mm pitch
- Functional Safety-Compliant
- Developed for functional safety applications
- Documentation to aid ISO 26262 and IEC 61508 system design up to ASIL-D/SIL-3
- Power Consumption
- Active mode: < 100mW
- Sleep mode: < 0.5mW
- Deep Sleep mode: < 0.05mW
The device is used to translate SPI to Vertical Interface (VIF2) to communicate with a stack of BQ798xx cell monitors or pack monitors. There are 18 GPIOs that can be used for SPI/I2C communication, digital IOs, or fault interrupts from peripheral devices. The device can function as a SPI HUB and interface with upto 8 separate SPI devices/groups. Ultra-low current consumption in DEEP SLEEP mode supports reverse wakeup of an MCU through the 5V nFAULT pin or a PMIC through the 12V INH pin. The isolated bi-directional daisy chain ports support both capacitor and transformer based isolation.
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 | BQ79800-Q1 Communication Bridge with Dual SPI in EV/BMS HV Automotive Applications datasheet | PDF | HTML | 2026/10/14 |
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)。
BQ79800EVM-093 — BQ79800-Q1 評估模組
BMS093-003 評估模組 (EVM) 用於評估 BQ79800-Q1 裝置性能。此 EVM 可用於評估多種板載通訊協定，包括單鏈與雙鏈序列周邊介面 (SPI)、隔離式菊鍊垂直介面 (VIF)、I2C，以及 SPI-HUB (SPI 控制器或 CSPI)。
BQ79800-Q1-DESIGN — BQ79800-Q1 design resources
BQ79800-Q1-FS — Functional Safety documentation for BQ79800-Q1
BQ79800-Q1-SW — BQ79800-Q1 software
| 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
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。