홈 배터리 관리 IC 배터리 충전기 IC
홈
배터리 관리 IC
배터리 충전기 IC

BQ25171-Q1

활성

차량용, 800mA 선형 배터리 충전기 - 1~2셀 리튬 이온, LiFePO4 및 1~6셀 NiMH용

지금 주문
데이터시트

BQ25171-Q1

활성
데이터시트 지금 주문

제품 상세 정보

Number of series cells 1, 2, 3, 4, 5, 6 Charge current (max) (A) 0.8 Vin (max) (V) 18 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, NiMH Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 8.4 Absolute max Vin (max) (V) 40 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP Vin (min) (V) 3 Rating Automotive Operating temperature range (°C) -40 to 125
Number of series cells 1, 2, 3, 4, 5, 6 Charge current (max) (A) 0.8 Vin (max) (V) 18 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, NiMH Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 8.4 Absolute max Vin (max) (V) 40 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP Vin (min) (V) 3 Rating Automotive Operating temperature range (°C) -40 to 125
VSON (DRC) 10 9 mm² 3 x 3
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C ≤ TA ≤ 125°C
    • HBM ESD classification level 2
    • CDM ESD classification level C4B
  • 40-V load-dump tolerant to support charging back-up battery directly from main battery, 3-V to 18-V operating
  • Automatic Sleep Mode for low power consumption
    • 350-nA battery leakage current
    • 2-µA input leakage current when charge disabled
  • Support multi-chemistry battery
    • 1- to 2-cell Li-Ion, Li-Poly, and LiFePO4
    • 1- to 6-cell NiMH with intermittent-charging support
  • External resistor programmable operation
    • VSET to set battery regulation voltage from 3.5 V to 8.4 V for Li-Ion, or 1- to 6-cell for NiMH
    • ISET to set charge current from 10 mA to 800 mA
    • CHM_TMR to set battery chemistry as Li+ or NiMH, and charge timer duration
  • High accuracy
    • ±0.5% charge voltage accuracy
    • ±10% charge current accuracy
  • Charging features
    • Precharge current 20% of ISET
    • Termination current 10% of ISET
    • NTC thermistor input to monitor battery temperature
    • CE pin for charging function control
    • Two Open-drain output for status and fault indication
  • Integrated fault protection
    • 18-V IN overvoltage protection
    • VSET based OUT overvoltage protection
    • 1000-mA overcurrent protection
    • 125°C thermal regulation; 150°C thermal shutdown protection
    • OUT short-circuit protection
    • VSET, ISET, CHM_TMR pins short/open protection
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C ≤ TA ≤ 125°C
    • HBM ESD classification level 2
    • CDM ESD classification level C4B
  • 40-V load-dump tolerant to support charging back-up battery directly from main battery, 3-V to 18-V operating
  • Automatic Sleep Mode for low power consumption
    • 350-nA battery leakage current
    • 2-µA input leakage current when charge disabled
  • Support multi-chemistry battery
    • 1- to 2-cell Li-Ion, Li-Poly, and LiFePO4
    • 1- to 6-cell NiMH with intermittent-charging support
  • External resistor programmable operation
    • VSET to set battery regulation voltage from 3.5 V to 8.4 V for Li-Ion, or 1- to 6-cell for NiMH
    • ISET to set charge current from 10 mA to 800 mA
    • CHM_TMR to set battery chemistry as Li+ or NiMH, and charge timer duration
  • High accuracy
    • ±0.5% charge voltage accuracy
    • ±10% charge current accuracy
  • Charging features
    • Precharge current 20% of ISET
    • Termination current 10% of ISET
    • NTC thermistor input to monitor battery temperature
    • CE pin for charging function control
    • Two Open-drain output for status and fault indication
  • Integrated fault protection
    • 18-V IN overvoltage protection
    • VSET based OUT overvoltage protection
    • 1000-mA overcurrent protection
    • 125°C thermal regulation; 150°C thermal shutdown protection
    • OUT short-circuit protection
    • VSET, ISET, CHM_TMR pins short/open protection

The BQ25171-Q1 is an automotive rated, 800-mA linear charger for 1-cell and 2-cell Li-Ion, Li-Polymer, and LiFePO4, in addition to 1-cell up to 6-cell NiMH battery applications.The device has a single power output that charges the battery. The system load can be placed in parallel with the battery, as long as the average system load does not prevent the battery from charging fully within the safety timer duration. When the system load is placed in parallel with the battery, the charge current is shared between the system and the battery.

The device has three phases for charging a Li-Ion battery: precharge to recover a fully discharged battery, fast-charge constant current to supply the bulk of the charge, and voltage regulation to reach full capacity.

The device charges a NiMH in constant current mode only, and terminates the charge cycle when the programmable timer expires or the battery voltage exceeds the VOUT_OVP threshold.In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold, TREG, is exceeded.

The BQ25171-Q1 is an automotive rated, 800-mA linear charger for 1-cell and 2-cell Li-Ion, Li-Polymer, and LiFePO4, in addition to 1-cell up to 6-cell NiMH battery applications.The device has a single power output that charges the battery. The system load can be placed in parallel with the battery, as long as the average system load does not prevent the battery from charging fully within the safety timer duration. When the system load is placed in parallel with the battery, the charge current is shared between the system and the battery.

The device has three phases for charging a Li-Ion battery: precharge to recover a fully discharged battery, fast-charge constant current to supply the bulk of the charge, and voltage regulation to reach full capacity.

The device charges a NiMH in constant current mode only, and terminates the charge cycle when the programmable timer expires or the battery voltage exceeds the VOUT_OVP threshold.In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold, TREG, is exceeded.
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기술 문서

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모두 보기6
유형 직함 날짜
* Data sheet BQ25171-Q1: Automotive, Standalone 800-mA Linear Battery Charger for 1- to 2-Cell Li-Ion, LiFePO4, and 1- to 6-Cell NiMH datasheet (Rev. A) PDF | HTML 2021/03/29
White paper 나노-IQ 시스템의 성능 문제 해결 (Rev. A) PDF | HTML 2024/03/13
Application note Wireless Power Solutions for Battery Chargers PDF | HTML 2023/04/20
Application note Multi-Chemistry Charger in Low Battery Power Applications PDF | HTML 2022/11/17
Application note BQ25171-Q1 Quick Start Guide PDF | HTML 2021/09/29
EVM User's guide BQ25171EVM User's Guide (Rev. B) 2021/07/16

설계 및 개발

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

평가 보드

BQ25171EVM — BQ25171 평가 모듈 1-2셀 리튬 이온, LiFePO4, 1-6셀 NiMH용 800mA 선형 배터리 충전기

BQ25171EVM 평가 모듈(EVM)은 사용자가 BQ25171 디바이스의 다양한 작동 모드를 평가하고 테스트할 수 있도록 설계되었습니다.
사용 설명서: PDF
TI.com에서 구매할 수 없습니다
레퍼런스 디자인

PMP30963 — 프리 부스트, 충전기 및 1S 리튬-이온 연료 게이지를 제공하는 백업 배터리 레퍼런스 설계

이 설계는 응급 작동을 위해 1S 리튬-이온 배터리를 사용하는 오토모티브 백업 배터리를 보여줍니다. 기본 전원 입력은 12V 차량용 요구 사항을 충족하기 위해 6V~18V 정격(2.7V~36V 피크)입니다. 2차 전력 입력에는 단일 셀 리튬-이온 배터리를 모니터링하는 연료 게이지가 있고 2V~4.35V의 입력 전압을 지원합니다. 온보드 학습 부하를 통해 백업 배터리를 위한 수명 종료 감지를 구현할 수 있습니다.
Test report: PDF
패키지 핀 다운로드
VSON (DRC) 10 옵션 보기
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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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