BQ24381
- Input Overvoltage Protection
- Accurate Battery Overvoltage Protection
- Output Short-Circuit Protection
- Soft-Start to Prevent Inrush Currents
- Soft-Stop to Prevent Voltage Spikes
- Maximum Input Voltage of 30 V
- Supports up to 1.7-A Load Current
- Thermal Shutdown
- Enable Function
- Fault Status Indication
- Small 2 mm × 2 mm 8-Pin WSON Package
The bq2438x family of devices are charger front-end integrated circuits (ICs) designed to provide protection to Li-ion batteries from failures of the charging circuit. The device continuously monitors the input voltage and battery voltage. The device operates like a linear regulator, maintaining a 5.5-V (bq24380) or 5-V (bq24381, bq24382) output with input voltages up to the Input overvoltage threshold. During input overvoltage conditions, the device immediately turns off the internal pass FET disconnecting the charging circuit from the damaging input source. Additionally, if the battery voltage rises to unsafe levels while charging, power is removed from the system. The device checks for short-circuit or overload conditions at its output when turning the pass FET on, and if it finds unsafe conditions, it switches off and then rechecks the conditions. Additionally, the device also monitors its die temperature and switches off if it exceeds 140°C.
When the device is controlled by a processor, the device provides status information about fault conditions to the host.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | bq2438x Overvoltage and Overcurrent Protection IC and Li+ Charger Front-End Protection IC With LDO Mode datasheet (Rev. C) | PDF | HTML | 2015/08/28 |
| EVM User's guide | bq2430x/1x DSG EVM (HPA245) for Li+ Charger Front End Protection IC (Rev. B) | 2016/11/04 |
설계 및 개발
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BQ24381EVM — BQ24381 평가 모듈
The bq2430x/1x/8x evaluation module is a complete charger module for evaluating a charger front-end protection and charger solution using the bq2430x/1x/8x and bq24080 devices. This user’s guide presents test summary information, printed-circuit board layout guidelines, bill of materials, (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| WSON (DSG) | 8 | 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