BQ25175
- Input voltage up to 30-V tolerant
- Automatic Sleep Mode for low power consumption
- 350-nA battery leakage current
- 80-µA input leakage current when charge disabled
- Supports 1-cell Li-Ion, and Li-Poly
-
Fixed 4.35-V battery regulation voltage
- External resistor programmable operation
- ISET to set charge current from 10 mA to 800 mA
- 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
- Cold and hot temperature charging disabled
- Cool temperature charging at 20% of ISET
- TS pin for charging function control
- Open-drain output for status and fault indication
- Integrated fault protection
- 6.6-V IN overvoltage protection
- 1000-mA overcurrent protection
- 125°C thermal regulation; 150°C thermal shutdown protection
- OUT short-circuit protection
- ISET pin short/open protection
The BQ25175 is an integrated 800-mA linear charger for 1-cell Li-Ion and Li-Poly batteries. 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/Li-Poly 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.
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 charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and automatic charge termination. The fast charge current is programmable through an external resistor. The precharge and termination current thresholds track the fast charge current setting.
관심 가지실만한 유사 제품
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | BQ25175 Standalone 1-Cell 800-mA Linear Battery Charger with 4.35-V Charge Voltage and Charging Indication datasheet (Rev. A) | PDF | HTML | 2021/09/23 |
Application note | BQ25171-Q1 Quick Start Guide | PDF | HTML | 2021/09/29 | |
EVM User's guide | BQ25175EVM User's Guide | 2021/05/26 | ||
Certificate | BQ25175EVM EU RoHS Declaration of Conformity (DoC) | 2021/05/21 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
BQ25175EVM — BQ25175 평가 모듈 1셀 리튬 이온용 800mA 선형 배터리 충전기
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
DSBGA (YBG) | 6 | 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.