BQ24050
- 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
- Protection
- 30-V Input Rating; With 6.6-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 through battery NTC - ½ fast-charge-current at cold, 4.06 V at hot
- Fixed 10-hour safety timer
- System
- Auto input source detection (D+, D– pins)
- No device transceiver required
- USB Friendly
- Automatic termination and timer disable mode (TTDM) for absent battery pack with thermistor
- Status indication – charging/done
- Available in small 2-mm × 2-mm package
- Auto input source detection (D+, D– pins)
The BQ2405x 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 BQ2405x 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 precharge current and termination current threshold are programmed through an external resistor. The fast charge current value is also programmable through an external resistor.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | BQ2405x 1-A, Single-Cell Li-Ion and Li-Pol Battery Charger With Automatic Adaptor and USB Detection datasheet (Rev. D) | PDF | HTML | 2021/05/26 |
| Application note | BQ2404x, BQ2405x, and BQ2409x Frequently Asked Questions | 2019/02/25 | ||
| Application note | Selecting the Best bq2404x/5x/9x Single Cell Battery Charger for your Applicatio | 2012/11/29 | ||
| Analog Design Journal | 2Q 2012 Issue Analog Applications Journal | 2012/04/26 | ||
| Analog Design Journal | Charging a three-cell nickel-based battery pack with a Li-Ion charger | 2012/04/26 | ||
| More literature | Журнал по применению аналоговых компонентов 1 кв. 2010 | 2010/09/23 | ||
| Analog Design Journal | Li-ion battery-charger solutions for JEITA compliance | 2010/01/29 | ||
| User guide | 0.8-A, Single-Input, Single-Cell Li-Ion Battery Charger UG | 2009/09/29 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
BQ24050EVM — BQ24050 평가 모듈: 0.8A, 단일 입력, 단일 셀 리튬 이온 배터리 충전기
0.8-A, Single-Input, Single-Cell Li-Ion Battery Charger
The bq2405x series of devices are highly integrated Li-ion linear chargers devices targeted atspace-limited portable applications. The devices operate from either a USB port or AC adapter.The bq2405x has a single power output that charges the (...)
PMP5722 — 단일 셀 배터리 전원 솔루션 레퍼런스 디자인
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| WSON (DSQ) | 10 | 옵션 보기 |
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.