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

BQ76942

활성

3 시리즈 ~ 10 시리즈 다중 셀 배터리 모니터 및 보호기

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BQ76942

활성
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제품 상세 정보

Rating Catalog Number of series cells (max) 10 Number of series cells (min) 3 Features Digital output, High-side driver, I2C support, Integrated ADC, LDO output, Multi-cell support, One-time-programmable (OTP) memory, Open-wire detection, Overcurrent in charging protection, Overcurrent in discharging protection, Overtemperature protection, Overvoltage protection, Scratchpad memory, Short-current detection, Temperature sensing, Undertemperature protection, Undervoltage protection Vin (max) (V) 55 Communication interface HDQ, I2C, SPI Device type Cell monitor and balancer Operating temperature range (°C) -40 to 85 Battery overvoltage protection (min) (V) 1 Battery overvoltage protection (max) (V) 5.5 Operating current (typ) (µA) 250
Rating Catalog Number of series cells (max) 10 Number of series cells (min) 3 Features Digital output, High-side driver, I2C support, Integrated ADC, LDO output, Multi-cell support, One-time-programmable (OTP) memory, Open-wire detection, Overcurrent in charging protection, Overcurrent in discharging protection, Overtemperature protection, Overvoltage protection, Scratchpad memory, Short-current detection, Temperature sensing, Undertemperature protection, Undervoltage protection Vin (max) (V) 55 Communication interface HDQ, I2C, SPI Device type Cell monitor and balancer Operating temperature range (°C) -40 to 85 Battery overvoltage protection (min) (V) 1 Battery overvoltage protection (max) (V) 5.5 Operating current (typ) (µA) 250
TQFP (PFB) 48 81 mm² 9 x 9
  • Battery monitoring capability for 3-series to 10-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 < 1 µV (typical)
    • High-accuracy cell voltage measurement < 10  mV (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 I2C, 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 10-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 < 1 µV (typical)
    • High-accuracy cell voltage measurement < 10  mV (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 I2C, SPI, and HDQ one-wire interface
  • Dual programmable LDOs for external system usage
  • 48-pin TQFP package (PFB)

The Texas Instruments BQ76942 is a highly integrated, high accuracy battery monitor and protector for 3-series to 10-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, dual programmable LDOs for external system use, and a host communication peripheral supporting 400-kHz I2C, SPI, and HDQ one-wire standards. The BQ76942 is available in a 48-pin TQFP package.

The Texas Instruments BQ76942 is a highly integrated, high accuracy battery monitor and protector for 3-series to 10-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, dual programmable LDOs for external system use, and a host communication peripheral supporting 400-kHz I2C, SPI, and HDQ one-wire standards. The BQ76942 is available in a 48-pin TQFP 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

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치보다 업그레이드된 기능을 지원하는 드롭인 대체품
BQ76952 활성 리튬 이온, 리튬 폴리머 및 LiFePO4를 위한 3s~16s의 고정밀 배터리 모니터 및 보호기 Same features as BQ76942, but optimized for up to 16s battery packs

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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20개 모두 보기
상위 문서 유형 직함 형식 옵션 날짜
* Data sheet BQ76942 3-Series to 10-Series High Accuracy Battery Monitor and Protector datasheet (Rev. B) 2021/12/02
* User guide BQ76942 Technical Reference Manual (Rev. B) PDF | HTML 2022/05/11
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 BQ769X2 OTP Program Example Guide With Sealed Configuration 2025/02/24
Application note BQ769x2 Frequently Asked Questions PDF | HTML 2024/03/29
Application note Design Considerations of Stacked BQ769x2 With High-Side N-MOSFET PDF | HTML 2023/02/09
Application note Using Low-Side FETs with the BQ769x2 Battery Monitor Family (Rev. A) PDF | HTML 2022/02/24
Application note Cell Balancing With BQ769x2 Battery Monitors (Rev. A) PDF | HTML 2022/02/15
Application note Multiple FETs with the BQ76952, BQ76942 Battery Monitors (Rev. A) 2021/12/03
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 Pin Equivalent Diagrams for the BQ76952, BQ76942, and BQ769142 2021/05/06
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
Application note Easy Configuration of BQ76942/52 Battery Monitors (Rev. A) 2020/10/01
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

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평가 보드

BQ76942EVM — 3시리즈~10시리즈 리튬 이온, 리튬 폴리머 및 LiFePO4 배터리 모니터 및 보호기 EVM

BQ76942EVM 평가 모듈(EVM)은 BQ76942 3셀~10셀 리튬 이온 배터리 모니터 통합 회로를 위한 완전한 평가 시스템입니다. EVM은 BQ76942 모니터 기능의 간단한 평가를 위해 사용되는 BQ76942 회로 모듈로 구성됩니다. 회로 모듈에는 BQ76942 통합 회로(IC) 1개, 감지 저항기, 전력 FET 및 10시리즈 셀 리튬 이온 또는 리튬 폴리머 배터리 팩의 과충전, 과방전, 단락 및 과전류 방전, 과열 및 온도 미달로부터 셀을 보호하는 데 필요한 모든 온보드 부품이 포함되어 있습니다. 회로 모듈은 배터리의 (...)

사용 설명서: PDF
TI.com에서 구매할 수 없음
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-STABLE — Battery Management Studio (bqStudio) Software – stable version downloads for bq series of TI battery fuel gauges

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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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 (...)

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어
다운로드 옵션
코드 예제 또는 데모

SLUC701 — Microcontroller Code Examples for BQ769x2 Battery Monitors

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어
다운로드
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
TQFP (PFB) 48 Ultra Librarian
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

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

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