BQ25882
- High-efficiency 2-A, 1.5-MHz switch mode boost charger
- 92.5% Charge efficiency at 7.6-V battery, 1-A charge
- Optimized for USB input and 2-cell Li-Ion output
- Selectable low power PFM mode for light load operation with out-of-audio option
- USB On-the-Go (OTG) with adjustable output from 4.5 V to 5.5 V
- Buck converter with up-to 2-A output
- 94.5% Efficiency at 5-V, 1-A output
- Accurate constant current (CC) limit
- Output short protection
- Selectable low power PFM mode for light load operation with out-of-audio option
- Single Input to support USB input adapters
- Supports 3.9-V to 6.2-V input voltage range with 20-V absolute maximum input voltage rating
- Input current limit (500 mA to 3.3 A with 100-mA resolution) to support USB2.0, USB3.0 standard adapters
- Maximum power tracking by input voltage limit up-to 5.5 V
- Auto-detect USB SDP, CDP, DCP, and non-standard adapters
- Input current optimizer (ICO) to maximize input power without overloading adapters
- Highest battery discharge efficiency with 15-mΩ battery discharge MOSFET
- Integrated ADC for system monitoring (BUS voltage and current, BAT voltage, charge current, SYS voltage, and NTC and die temperature)
- Narrow VDC (NVDC) power path management
- Instant-on works with no battery or deeply discharged battery
- Ideal diode operation in battery supplement mode
- Flexible autonomous and I2C mode for optimal system performance
- High integration includes all MOSFETs, current sensing and loop compensation
- High accuracy
- ±0.4% Charge voltage regulation
- ±7.5% Charge current regulation
- ±7.5% Input current regulation
- Safety
- Battery temperature sensing in charge and OTG buck mode
- Thermal regulation and thermal shutdown
The BQ25882 is a highly-integrated 2-A switch-mode battery charge management and system power path management device for dual-cell Li-Ion and Li-polymer batteries. The I2C Serial interface with charging and system settings makes the device a truly flexible solution.
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기술 문서
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모두 보기5 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | BQ25882 I2C Controlled, 2-Cell, 2-A Boost-Mode Battery Charger For USB Input datasheet (Rev. C) | PDF | HTML | 2019/07/29 |
| Application note | State of Charge Estimation Using Smart Battery Charger | PDF | HTML | 2021/10/11 | |
| Technical article | Battery-charging tips for video doorbell applications | PDF | HTML | 2019/04/15 | |
| Technical article | 4 Reasons why you should use a boost charger for 2-cell battery application | PDF | HTML | 2019/04/03 | |
| User guide | bq2588x Boosting Battery Chargers Evaluation Module User's Guide (Rev. A) | 2018/08/21 |
설계 및 개발
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| 패키지 | 핀 | 다운로드 |
|---|---|---|
| DSBGA (YFF) | 25 | 옵션 보기 |
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
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.