BQ24123
- Enhanced EMI Performance
- Integrated Power FETs For Up To 2-A Charge
Rate - Suitable For 1-, 2-, or 3-Cell Li-Ion and Li-Polymer
Battery Packs - Synchronous Fixed-Frequency PWM Controller
Operating at 1.1 MHz With 0% to 100% Duty
Cycle - High-Accuracy Voltage and Current Regulation
- Status Outputs For LED or Host Processor
Interface Indicates Charge-In-Progress, Charge
Completion, Fault, and AC-Adapter Present
Conditions - 20-V Absolute Maximum Voltage Rating on IN and
OUT Pins - Accurate High-Side Battery Current Sensing
- Battery Temperature Monitoring
- Automatic Sleep Mode for Low Power
Consumption - Reverse Leakage Protection Prevents Battery
Drainage - Thermal Shutdown and Protection
- Built-In Battery Detection
- Available in 20-pin 3.5-mm × 4.5-mm VQFN
Package
The bqSWITCHER™ series are highly integrated Li-ion and Li-polymer switched-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status, and charge termination, in a small, thermally enhanced QFN package.
The bqSWITCHER charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on user-selectable minimum current level. A programmable charge timer provides a safety backup for charge termination. The bqSWITCHER automatically restarts the charge cycle if the battery voltage falls below an internal threshold. The bqSWITCHER automatically enters sleep mode when VCC supply is removed.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 | |
|---|---|---|---|---|---|---|
| * | 데이터 시트 | bq2412x Single-Chip Switched-Mode, Li-Ion, and Li-Polymer Charge-Management IC With Enhanced EMI Performance (bqSWITCHER™) datasheet (Rev. H) | PDF | HTML | 2015. 11. 30 | ||
| 사용 설명서 | Using the bq24120/3 (bqSwitcher)(TM) (Rev. A) | 2007. 11. 5 | ||||
| 애플리케이션 노트 | Implementations of Battery Charger and Power-Path Mgmt System Using bq241xx | 2006. 6. 6 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
BQ24123EVM-002 — bq24123 평가 모듈
The bq24123EVM-002 provides a convenient method for evaluating the performance of a charge management solution for portable applications using the bq24123. The charger can deliver up to 2 A of continuous output current and is programmed from the factory to deliver 1.33 A of charging (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VQFN (RHL) | 20 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.