BQ25640
- High-efficiency 5A, 1.5MHz, synchronous switch
mode buck charger for single cell battery
- >90% efficiency down to 10mA output current from 5V input
- Charge current up to 5A in 20mA steps
- Charge termination from 30 to 1000mA in 10mA steps
- Highly configurable JEITA profile for safe charging over temperature
- Fully Integrated CC Controller with Dual Role Power (DRP), Try.SNK and Try.SRC
- BATFET control to support
shutdown, ship mode and full system
reset
- 1.5µA quiescent current in battery only mode
- 0.15µA battery leakage current in ship mode
- 0.1µA battery leakage current in shutdown mode
- Supports USB On-The-Go (OTG) and SRC mode
- Reverse mode with 3.84V to 9.6V output
- Programmable current limit up to 3.2A
- Supports a wide range of input
sources
- 3.9V to 18V input operating voltage range with 26V absolute max input voltage
- Supports USB Type-C inputs, USB BC1.2, HVDCP, and Non-Standard Adapters
- Supports IINDPM Range from 10mA to 3.2A
- API (Alternate Power from Input) mode for low power input sources down to 10mA
- VINDPM automatically tracks battery voltage
- Input Current Optimizer (ICO) maximizes input power without overloading adapters
- Efficient battery operation with 7mΩ BATFET
- Narrow VDC (NVDC) power path
management
- System instant-on with depleted or no battery
- Battery supplement when adapter is fully loaded
- Flexible autonomous or I2C-controlled modes
- Integrated 12-bit ADC for voltage, current, and temperature monitoring
- High accuracy
- ±0.5% charge voltage regulation
- ±5% charge current regulation
- ±5% input current regulation
- Safety
- Liquid detection and corrosion mitigation (Patent Pending)
- Thermal regulation and thermal shutdown
- Input/system/battery overvoltage and overcurrent protection
- Charging safety timer
The BQ25640 is a highly-integrated 5A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer batteries. The design is highly integrated with built-in current sensing, loop compensation, input reverse-blocking FET (Q1), switching FETs (Q2 and Q3), and battery FET (Q4) between system and battery. The device integrates a USB Type-C controller with Dual-Role Power with Try.SNK and Try.SRC support. The BQ25640 uses NVDC power path management, regulating the system slightly above the battery voltage without dropping below a configurable minimum system voltage. The low impedance power path optimizes efficiency, reduces battery charging time and extends battery life during discharging phase, and the ultra-low 0.15µA ship mode current extends battery shelf life.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | BQ25640 I2 C Controlled Single Cell 5A Buck Charger with USB-C Detection datasheet | PDF | HTML | 2026. 3. 6 | |
| 애플리케이션 노트 | Capturing Maximum Power from Weak Sources with API Mode Battery Chargers | PDF | HTML | 2026. 6. 24 | ||
| 애플리케이션 노트 | Single Cell Battery Charger Applications with Dual Sources | PDF | HTML | 2025. 8. 11 | ||
| Application brief | Battery Detection Using Single Cell Charger (Rev. A) | PDF | HTML | 2025. 6. 20 | ||
| 애플리케이션 노트 | Solar MPPT with Single Cell Battery Charger | PDF | HTML | 2024. 10. 16 | ||
| 애플리케이션 노트 | Measuring Efficiency for a Switch-Mode Battery Charger | PDF | HTML | 2024. 10. 9 | ||
| 아날로그 디자인 학술지 | Optimize your application with a power path battery charger | PDF | HTML | 2023. 6. 19 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
BQ25640EVM — BQ25640 평가 모듈
BQ25640EVM 평가 모듈(EVM)은 3.9V~18V의 입력 범위와 NVDC 전원 경로 관리를 지원하는 WQFN 패키지의 스위치 모드 벅 단일 셀 배터리 충전기인 BQ25640 IC를 위한 완전한 평가 시스템입니다.
BQ25640EVM은 최대 동작 입력 전압이 18V이고 최대 충전 전류는 5A입니다.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WQFN-FCRLF (VDL) | 23 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.