BQ24041
- Charging
- 1% Charge voltage accuracy
- 10% Charge current accuracy
- Pin selectable USB 100 mA and 500 mA maximum input current limit
- Programmable termination and precharge threshold, BQ24040 and BQ24045
- High voltage (4.35 V) chemistry support with BQ24045
- Protection
- 30V Input rating; with 6.6 V or 7.1 V input overvoltage protection
- Input voltage dynamic power management
- 125°C thermal regulation; 150°C thermal shutdown protection
- OUT Short-circuit protection and ISET short detection
- Operation over JEITA range via battery NTC – 1/2 fast-charge-current at Cold, 4.06V at Hot, BQ24040 and BQ24045
- Fixed 10 hour safety timer, BQ24040 and BQ24045
- System
- Automatic termination and timer disable mode (TTDM) for absent battery pack with thermistor, BQ24040 and BQ24045
- Status indication – charging and done
- Available in small 2 × 2 mm2 DFN-10 package
- Integrated auto start function for production line testing, BQ24041
- Functional Safety-Capable (BQ24040)
- Safety-Related Certifications:
- IEC 62368-1 CB Certification (BQ24040, BQ24045)
The BQ2404x series of devices are highly integrated Li-Ion and Li-Pol linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.
The BQ2404x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer.
The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.
The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed through an external resistor on the BQ24040 and BQ24045. The fast charge current value is also programmable through an external resistor.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | BQ2404x 1A, Single-Input, Single Cell Li-Ion and Li-Pol Battery Charger datasheet (Rev. H) | 2021/02/01 | |
| Application note | BQ2404x, BQ2405x, and BQ2409x Frequently Asked Questions | 2019/02/25 | ||
| Application note | Building your own Battery Simulator | 2013/10/14 | ||
| User guide | 1-A Single-Input, Single-Cell Li-Ion Battery Charger | 2012/12/31 | ||
| Application note | Selecting the Best bq2404x/5x/9x Single Cell Battery Charger for your Applicatio | 2012/11/29 | ||
| User guide | 0.8-A, Single-Input Single-Cell Li-Ion Battery Charger UG | 2009/09/29 |
설계 및 개발
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BQ24041EVM — BQ24041 평가 모듈: 1A 단일 입력, 싱글 셀 리튬 이온 배터리 충전기
The bq2404x series of devices are highly integrated Li-ion linear charger devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter.The bq2404x has a single power output that charges the battery. A system load can be placed in parallel with (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WSON (DSQ) | 10 | 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.