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.
설계 및 개발
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BQ79800EVM-093 — BQ79800-Q1 평가 모듈
BMS093-003 평가 모듈(EVM)은 BQ79800-Q1 장치의 평가를 위해 고안되었습니다. 이 EVM은 단일 체인 SPI(직렬 주변 기기 인터페이스) 및 이중 체인 SPI, 절연 데이지 체인 수직 인터페이스(VIF), I2C, SPI-HUB(SPI 컨트롤러 또는 CSPI)와 같은 온보드 다양한 통신 프로토콜을 평가하는 데 사용할 수 있습니다
BQ79800-Q1-DESIGN — BQ79800-Q1 design resources
BQ79800-Q1-FS — Functional Safety documentation for BQ79800-Q1
BQ79800-Q1-SW — BQ79800-Q1 software
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HTQFP (PHP) | 48 | Ultra Librarian |