BQ25872
- Adapter Input Voltage Range: 3 V to 14 V
- Allow up to 14-V Adaptor Voltage
- Highly Integrated 7-A Battery Switch
- Integrated MOSFETs and Current Sensing
- Low RDS(on) (13-mΩ) MOSFETs for High Current Operation
- Integrated High Accuracy ADC for System Monitor
- VBUS, VBAT, VOUT, VDROP Voltage
- Input and Battery Current
- Battery and VBUS Connector Temperature
- Linear Regulation (LDO) Mode Operation
- Four Linear Regulation Loops: IBUS, IBAT, VBAT and VOUT
- Programmable Linear Regulation Thresholds
- Programmable Safety Protections
- VBUS, VOUT, and VBAT Over Voltage Protections (OVP)
- IBUS and IBAT Over Current Protection (OCP)
- IBUS Reverse Current Protection (RCP)
- VDROP (VBUS-VOUT) OVP
- VBUS Connector and Battery Thermal Protection
- Thermal Shutdown
- Interrupt Status Output For Host Processor Alert
- Up To 1-MHz I2C Read and Write Speed
- Low Battery Leakage Current in Battery Only Mode
- WCSP Package for Small Footprint
The device is a 7-A battery switch charger with an integrated 10-bit ADC. The high-current battery switch charger is a 13-mΩ MOSFET with reverse current blocking designed for high efficiency and minimal voltage drop. The high-charge current capability of the device makes it ideal for smartphones, tablets, and other portable devices with large battery capacity.
The integrated 10-bit ADC can measure input voltage and current, battery voltage and current, as well as battery temperature and input connector temperature. This allows the user application to continuously monitor the power input and battery charging parameters to ensure the safety of the battery charging. The flexible OVP and OCP thresholds for VBUS, VOUT, and battery can be modified via I2C registers as the battery goes through constant current (CC) and constant voltage (CV) mode.
The I2C serial interface of the device can operate at speeds up to 1 MHz and allows access to the ADC’s measurements of the different charging parameters and also allows for flexible software control of the device. The INT pin provides instantaneous feedback to the host in case of a fault condition. I2C status registers allow the host to read the current status of all faults and events.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | bq25872 14-V, 7-A, Battery Switch Charger with Integrated 10-bit ADC datasheet | PDF | HTML | 2016/09/01 |
| Application note | 具有高效率电荷泵（Charge Pump Charger）充电系统介绍 | 2018/08/06 | ||
| Application note | Flash Battery Charging Pushes the Boundary of Charging Current | 2017/03/15 | ||
| EVM User's guide | bq25871 and bq25872 PWR813 Evaluation Module User Guide | 2016/09/27 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
BQ25872EVM-813 — BQ25872 완전한 충전기 평가 모듈
The bq25872 evaluation module (EVM) is a complete charger module for evaluating the highly-integrated battery switch in WCSP package for 1 cell Li-Ion and Li-polymer battery in a wide range of smartphone and tablet applications.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| DSBGA (YFF) | 42 | 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