제품 상세 정보

Number of series cells (min) 3 Vin (max) (V) 27.5 Features Cell balancing, High-side driver, I2C support, Integrated ADC, Multi-cell support, Open-wire detection, Overcurrent in charging protection, Overcurrent in discharging protection, Overtemperature protection, Overvoltage protection, Programmable EEPROM or EPROM, Short-current detection, Temperature sensing, Undertemperature protection, Undervoltage protection Number of series cells (max) 5 Operating temperature range (°C) -40 to 85 Rating Catalog Battery overvoltage protection (min) (V) 1 Battery overvoltage protection (max) (V) 5.5 Communication interface HDQ, I2C Operating current (typ) (µA) 250
Number of series cells (min) 3 Vin (max) (V) 27.5 Features Cell balancing, High-side driver, I2C support, Integrated ADC, Multi-cell support, Open-wire detection, Overcurrent in charging protection, Overcurrent in discharging protection, Overtemperature protection, Overvoltage protection, Programmable EEPROM or EPROM, Short-current detection, Temperature sensing, Undertemperature protection, Undervoltage protection Number of series cells (max) 5 Operating temperature range (°C) -40 to 85 Rating Catalog Battery overvoltage protection (min) (V) 1 Battery overvoltage protection (max) (V) 5.5 Communication interface HDQ, I2C Operating current (typ) (µA) 250
WQFN (RSN) 32 16 mm² 4 x 4
  • 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)
  • 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.

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.

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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 문서

star =TI에서 선정한 이 제품의 인기 문서
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모두 보기8
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.

애플리케이션 소프트웨어 및 프레임워크

BQSTUDIO — bqStudio(Battery Management Studio) 소프트웨어

bqStudio(Battery Management Studio)는 TI 배터리 관리 제품의 평가, 설계, 구성, 테스트 또는 기타 활용 프로세스를 지원하는 견고한 종합 툴을 제공합니다. 여기에는 실시간 감시, 그래프 및 로깅 지원, 명령 전송을 위한 간편한 인터페이스, 직접 저수준 통신 및 I/O, 구성, 보정, 학습 주기 수행, 장치를 생산 단계로 가져가기 위한 유용한 파일 생성 등 레지스터 및 데이터 메모리에 대한 전체 액세스를 제공하는 기능은 물론, 자동화된 가이드 지원도 포함됩니다.

bq20xxx 및 bq30xxx와 같은 (...)
패키지 다운로드
WQFN (RSN) 32 옵션 보기

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

콘텐츠는 TI 및 커뮤니티 기고자에 의해 "있는 그대로" 제공되며 TI의 사양으로 간주되지 않습니다. 사용 약관을 참조하십시오.

품질, 패키징, TI에서 주문하는 데 대한 질문이 있다면 TI 지원을 방문하세요. ​​​​​​​​​​​​​​

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