홈 배터리 관리 IC 배터리 모니터 및 밸런서
홈
배터리 관리 IC
배터리 모니터 및 밸런서

BQ76972

활성

리튬 이온, 리튬 폴리머 및 LiFePO4를 위한 3S~16s의 고정밀 배터리 모니터 및 보호기

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BQ76972

활성
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제품 상세 정보

Rating Catalog Number of series cells (max) 16 Number of series cells (min) 3 Features Autonomous Mode, Coulomb Counter, Digital output, High-side FET drive, I2C support, LDO output, Low-Power Sleep Mode, Multi-cell support, One-Time Programmable (OTP) memory, Open wire (OW), Overcurrent in charging protection, Overcurrent in discharging protection, Overtemperature protection, Overvoltage protection, Power-save mode, Scratchpad memory, Short-current detection, Sleep Mode, Temperature sensing, Undertemperature protection, Undervoltage protection Vin (max) (V) 80 Communication interface HDQ, I2C, SPI Device type Cell monitor and balancer, Protector Operating temperature range (°C) -40 to 85 Battery overvoltage protection (min) (V) 1.012 Battery overvoltage protection (max) (V) 5.566
Rating Catalog Number of series cells (max) 16 Number of series cells (min) 3 Features Autonomous Mode, Coulomb Counter, Digital output, High-side FET drive, I2C support, LDO output, Low-Power Sleep Mode, Multi-cell support, One-Time Programmable (OTP) memory, Open wire (OW), Overcurrent in charging protection, Overcurrent in discharging protection, Overtemperature protection, Overvoltage protection, Power-save mode, Scratchpad memory, Short-current detection, Sleep Mode, Temperature sensing, Undertemperature protection, Undervoltage protection Vin (max) (V) 80 Communication interface HDQ, I2C, SPI Device type Cell monitor and balancer, Protector Operating temperature range (°C) -40 to 85 Battery overvoltage protection (min) (V) 1.012 Battery overvoltage protection (max) (V) 5.566
TQFP (PFB) 48 81 mm² 9 x 9
  • Battery monitoring capability for 3-series to 16-series cells
  • High accuracy cell voltage measurement of ±3.0 mV
  • 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 < 1 µV (typical)
  • Wide-range current applications (±200-mV 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: 286 µA
    • Multiple SLEEP mode options: 24 µA to 41 µA
    • Multiple DEEPSLEEP mode options: 9 µA to 10 µA
    • SHUTDOWN mode: 1 µA
  • High-voltage tolerance of 85 V 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 nine external thermistors
  • Integrated one-time-programmable (OTP) memory programmable by customers on production line
  • Communication options include 400-kHz I 2C, SPI, and HDQ one-wire interface
  • Dual-programmable LDOs for external system usage
  • 48-pin TQFP package (PFB)
  • Battery monitoring capability for 3-series to 16-series cells
  • High accuracy cell voltage measurement of ±3.0 mV
  • 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 < 1 µV (typical)
  • Wide-range current applications (±200-mV 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: 286 µA
    • Multiple SLEEP mode options: 24 µA to 41 µA
    • Multiple DEEPSLEEP mode options: 9 µA to 10 µA
    • SHUTDOWN mode: 1 µA
  • High-voltage tolerance of 85 V 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 nine external thermistors
  • Integrated one-time-programmable (OTP) memory programmable by customers on production line
  • Communication options include 400-kHz I 2C, SPI, and HDQ one-wire interface
  • Dual-programmable LDOs for external system usage
  • 48-pin TQFP package (PFB)

The Texas Instruments BQ76972 device is a highly integrated, high-accuracy battery monitor and protector for 3-series to 16-series Li-ion, Li-polymer, and LiFePO 4 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, dual programmable LDOs for external system use, and a host communication peripheral supporting 400-kHz I 2C, SPI, and HDQ one-wire standards. The BQ76972 device is available in a 48-pin TQFP package.

The Texas Instruments BQ76972 device is a highly integrated, high-accuracy battery monitor and protector for 3-series to 16-series Li-ion, Li-polymer, and LiFePO 4 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, dual programmable LDOs for external system use, and a host communication peripheral supporting 400-kHz I 2C, SPI, and HDQ one-wire standards. The BQ76972 device is available in a 48-pin TQFP package.
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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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19개 모두 보기
상위 문서 유형 직함 형식 옵션 날짜
* Data sheet BQ76972 3-Series to 16-Series High Accuracy Battery Monitor and Protector for Li-Ion, Li-Polymer, and LiFePO4Battery Packs datasheet PDF | HTML 2023/11/23
Application note Why is short-circuit protection more challenging for high- side driver battery packs than low-side driver? PDF | HTML 2026/01/23
Application note Enhance Temperature Measurement Performance With BQ769x2 and TMP6x for Battery Management System PDF | HTML 2025/11/14
Application note Design Considerations of Current Sensing With BQ769x2 Family for Battery Management System (Rev. A) PDF | HTML 2025/08/01
Application note BQ769x2 Frequently Asked Questions PDF | HTML 2024/03/29
Technical article 3 major design challenges to solve in battery energy storage systems PDF | HTML 2024/01/30
Application brief Scaling accurate battery management designs across energy storage systems PDF | HTML 2023/10/20
User guide BQ76972 Technical Reference Manual PDF | HTML 2023/06/26
Application note Design Considerations of Stacked BQ769x2 With High-Side N-MOSFET PDF | HTML 2023/02/09
Technical article Pack a punch in battery pack systems with low-cost MCUs PDF | HTML 2021/11/16
Application note Pin Equivalent Diagrams for the BQ76952, BQ76942, and BQ769142 2021/05/06
Application note BQ76952 High Voltage Stress Report PDF | HTML 2021/02/25
Technical article How to stack battery monitors for high-cell-count industrial applications PDF | HTML 2021/02/11
Application note BQ76942 IEC ESD 61000-4-2 ESD Test Report 2020/11/16
Technical article CURRENTly questioning the accuracy of your battery monitor? Improve battery safety PDF | HTML 2020/05/28
Technical article Improving voltage measurement accuracy in battery monitoring systems PDF | HTML 2020/04/01
Technical article Improving temperature measurement accuracy in battery monitoring systems PDF | HTML 2020/02/20
Application note Parallel Paths with the BQ769x2 Battery Monitor 2020/01/09
Technical article Next-generation battery monitors: how to improve battery safety while improving ac PDF | HTML 2020/01/06

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

애플리케이션 소프트웨어 및 프레임워크

BQ769X2-THERMISTOR-COEFF-CALCULATOR — BQ76952/42 서미스터 온도 옵티마이저 - T 범위에 대한 서미스터 계수를 계산

The BQ769x2 family of battery monitors can support multiple external thermistors. The device includes an internal pullup resistor to bias the thermistor during measurement. The internal pullup resistor has two options which can set the pullup to 18 kΩ or 180 kΩ. The 18-kΩ option (...)
사용 설명서: PDF | HTML
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애플리케이션 소프트웨어 및 프레임워크

BQSTUDIO-TEST — Battery Management Studio (bqStudio) Software – untested version downloads

Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)

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다운로드 옵션
레퍼런스 디자인

TIDA-010247 — 48–1500V 에너지 저장 시스템을 위한 고정밀 배터리 관리 유닛 레퍼런스 설계

이 레퍼런스 설계는 적층형 BQ769x2 배터리 모니터 제품군을 사용하는 고압측, N채널 MOSFET 제어(최대 32s) 배터리 관리 유닛(BMU)입니다. 이 설계는 또한 고전압(최대 1500V) 에너지 저장소 애플리케이션을 위한 BMU 스택형 CAN 인터페이스를 통합합니다. 고압측, N-채널 MOSFET 아키텍처와 최적화된 구동 회로는 쉬운 스위치 제어를 제공합니다. 이 레퍼런스 디자인은 대기 모드와 배송 모드 소모를 줄이고 두 그룹 간의 전류 간격을 최적화합니다. 이 레퍼런스 설계는 48–1500V 에너지 저장 시스템용입니다.
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TQFP (PFB) 48 Ultra Librarian
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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:
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  • 조립 위치

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