BQ25171-Q1
- 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.
기술 자료
| 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 | 2024/03/25 | |
| 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.
BQ25171EVM — BQ25171 평가 모듈 1-2셀 리튬 이온, LiFePO4, 1-6셀 NiMH용 800mA 선형 배터리 충전기
PMP30963 — 프리 부스트, 충전기 및 1S 리튬-이온 연료 게이지를 제공하는 백업 배터리 레퍼런스 설계
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VSON (DRC) | 10 | 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.