BQ24780S
- Industrial Innovative Charge Controller With Hybrid Power Boost Mode
- Adapter and Battery Provides Power to System Together for Intel® CPU Turbo Mode
- Ultra-Fast Transient Response of 150 µs to Enter Boost Mode
- Hybrid Power Boost Mode from 4.5- to 24-V System
- Charge 1- to 4-Cell Battery Pack from 4.5- to 24-V Adapter
- High Accuracy Power and Current Monitoring for CPU Throttling
- Comprehensive PROCHOT Profile
- ± 2% Current Monitor Accuracy
- ± 5% System Power Monitor Accuracy (PMON)
- Automatic NMOS Power Source Selection from Adapter or Battery
- ACFET Fast Turn on in 100 µs
- Programmable Input Current, Charge Voltage, Charge and Discharge Current Limit
- ±0.4% Charge Voltage (16-mV step)
- ±2% Input Current (128-mA/step)
- ±2% Charge Current (64-mA/step)
- ±2% Discharge Current (512-mA/step)
- High Integration
- Battery LEARN Function
- Battery Present Monitor
- Boost Mode Indicator
- Loop Compensation
- BTST Diode
- Enhanced Safety Features for Overvoltage Protection, Overcurrent Protection, Battery, Inductor, and MOSFET Short-Circuit Protection
- Switching Frequency: 600 kHz, 800 kHz, and
1 MHz - Realtime System Control on ILIM Pin to Limit Charge and Discharge Current
- 0.65 mA Adapter Standby Quiescent Current for Energy Star
The bq24780S device is a high-efficiency, synchronous battery charger, offering low component count for space-constrained, multi-chemistry battery charging applications.
The bq24780S device supports hybrid power boost mode (previously called "turbo boost mode"). It allows battery discharge energy to system when system power demand is temporarily higher than adapter maximum power level. Therefore, adapter does not crash.
The bq24780S device uses two charge pumps to separately drive N-channel MOSFETs (ACFET, RBFET, and BATFET) for automatic system power source selection.
Through SMBus, system power management microcontroller programs input current, charge current, discharge current, and charge voltage DACs with high regulation accuracies.
The bq24780S device monitors adapter current (IADP), battery discharge current (IDCHG), and system power (PMON) for host to throttle back CPU speed or reduce system power when needed.
The bq24780S device charges 1-, 2-, 3-, or 4-series Li+ cells.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | bq24780S 1- to 4-Cell Hybrid Power Boost Mode Battery Charge Controller With Power and Processor Hot Monitoring datasheet (Rev. C) | PDF | HTML | 2017/03/20 |
Application note | Autonomous Smart Battery Guide | PDF | HTML | 2021/10/15 | |
EVM User's guide | bq24780S EVM User's Guide | 2015/04/08 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
BQ24780SEVM-583 — 1-4 셀 하이브리드 전원 부스트 모드 배터리 충전 컨트롤러 평가 모듈
The bq24780S evaluation module (EVM) is a complete charger module for evaluating the high-efficiency, synchronous, 1-4 cell turbo boost mode battery charge controller with power monitoring and /PROCHOT for CPU throttling, charges one, two, three or four series Li-ion and Li-polymer cells used in (...)
BQSTUDIO — bqStudio(Battery Management Studio) 소프트웨어
bq20xxx 및 bq30xxx와 같은 (...)
TIDA-00657 — SMBus 1~4셀 하이브리드 전원 부스트 모드 배터리 충전 컨트롤러 레퍼런스 디자인
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
WQFN (RUY) | 28 | 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.