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.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | BQ79800-Q1 Communication Bridge with Dual SPI in EV/BMS HV Automotive Applications datasheet | PDF | HTML | Oct 14, 2026 |
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The BMS093-003 Evaluation Module (EVM) is designed for the evaluation of the BQ79800-Q1 device. This EVM can be used to evaluate the various communication protocols onboard such as the singlechain serial peripheral interface (SPI) and dual-chain SPI, the isolated daisy-chain vertical interface (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTQFP (PHP) | 48 | Ultra Librarian |
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