BQ76922
- Battery monitoring capability for 3-series to 5-series cells
- Integrated charge pump for high-side NFET protection with optional autonomous recovery
- Extensive protection suite including voltage, temperature, current, and internal diagnostics
- Two independent ADCs
- Support for simultaneous current and voltage sampling
- High-accuracy coulomb counter with input offset error < 1µV (typical)
- High accuracy cell voltage measurement < 10mV (typical)
- Wide-range current applications (±200mV measurement range across sense resistor)
- Integrated secondary chemical fuse drive protection
- Autonomous or host-controlled cell balancing
- Multiple power modes (typical battery pack operating range conditions)
- NORMAL mode: 286µA
- Multiple SLEEP mode options: 24µA to 41µA
- Multiple DEEPSLEEP mode options: 9µA to 10µA
- SHUTDOWN mode: 1µA
- High-voltage tolerance of 60V on cell connect and select additional pins
- Tolerant of random cell attach sequence on production line
- Support for temperature sensing using internal sensor and up to five external thermistors
- Integrated one-time-programmable (OTP) memory programmable by customers on production line
- Communication options include 400kHz I2C, and HDQ one-wire interface
- Programmable LDO for external system usage
- 32-pin QFN package (RSN)
The Texas Instruments BQ76922 device is a highly integrated, high-accuracy battery monitor and protector for 3-series to 5-series Li-ion, Li-polymer, and LiFePO4 battery packs. The device includes a high-accuracy monitoring system, a highly configurable protection subsystem, and support for autonomous or host controlled cell balancing. Integration includes high-side charge-pump NFET drivers, a programmable LDO for external system use, and a host communication peripheral supporting 400kHz I2C and HDQ one-wire standards. The BQ76922 device is available in a 32-pin 4 × 4 mm QFN package.
추가 정보 요청
NDA 조건으로 고장 모드, 영향 및 진단 분석(FMEDA), 안전 분석 보고서 및 안전 매뉴얼과 같은 기능 안전 정보를 사용할 수 있습니다. 지금 요청
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | BQ76922 3-Series to 5-Series High Accuracy Battery Monitor and Protector for Li-Ion, Li-Polymer, and LiFePO4 Battery Packs datasheet (Rev. A) | PDF | HTML | 2024/04/03 |
User guide | BQ76922 Technical Reference Manual | PDF | HTML | 2024/04/16 | |
Application note | Cell Balancing With BQ769x2 Battery Monitors (Rev. A) | PDF | HTML | 2022/02/15 | |
EVM User's guide | BQ76922EVM User's Guide (Rev. A) | PDF | HTML | 2021/11/18 | |
Certificate | BQ76922EVM EU Declaration of Conformity (DoC) | 2021/08/26 | ||
Application note | BQ769x2 Software Development Guide (Rev. B) | PDF | HTML | 2021/08/26 | |
Application note | BQ769x2 Calibration and OTP Programming Guide (Rev. A) | PDF | HTML | 2021/08/06 | |
Application note | Parallel Paths with the BQ769x2 Battery Monitor | 2020/01/09 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
BQSTUDIO — bqStudio(Battery Management Studio) 소프트웨어
bq20xxx 및 bq30xxx와 같은 (...)
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
WQFN (RSN) | 32 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.