BQ2947
- 2-, 3-, and 4-series cell overvoltage protection
- External capacitor-programmed delay timer
- Factory programmed OVP threshold (threshold range 3.85V to 4.6V)
- Output options: active high or open drain active low
- High-accuracy overvoltage protection: ±10mV
- Low power consumption ICC ≈ 1µA (VCELL(ALL) < VPROTECT)
- Low leakage current per cell input < 100nA
- Small package footprint
- 8-pin WSON (2.00mm × 2.00mm)
The BQ2947 family is an overvoltage monitor and protector for Li-Ion battery pack systems. Each cell is monitored independently for an overvoltage condition.
In the BQ2947 device, an external delay timer is initiated upon detection of an overvoltage condition on any cell. Upon expiration of the delay timer, the output is triggered into the active state (either high or low, depending on the configuration). The external delay timer feature also includes the ability to detect an open or shorted delay capacitor on the CD pin, which similarly triggers the output driver in an overvoltage condition.
For quicker production-line testing, the BQ2947 device provides a customer test mode with 67 reduced delay time.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | BQ2947 Overvoltage Protection for 2-Series to 4-Series Cell Li-Ion Batteries With External Delay Capacitor datasheet (Rev. K) | PDF | HTML | 2026. 6. 5 |
설계 및 개발
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TIDA-00553 — 충전, 게이지, 인증 및 보호가 통합된 멀티 셀 배터리 관리자 장치
The Texas Instruments bq40z60 device is a Battery Pack Manager that integrates battery charging control output, gas gauging, and protection for completely autonomous operation of 2-series to 4-series cell Li-Ion and Li-Polymer battery packs. The architecture enables internal communication between (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WSON (DSG) | 8 | Ultra Librarian |
주문 및 품질
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