BQ29209-Q1
- 2-series cell secondary protection
- Automatic cell imbalance correction with external enable control
- ±30-mV enable, 0-mV disable thresholds typical
- External capacitor-controlled delay timer
- External resistor-controlled cell balance current
- Low power consumption ICC < 3 µA typical (VCELL(ALL) < VPROTECT)
- Internal cell balancing handles current up to 15 mA
- External cell balancing mode supported
- High-accuracy overvoltage protection:
- ±25 mV with TA = 0°C to 60°C
- Fixed overvoltage protection threshold: 4.30 V
- Small 8L DRB package
- Functional Safety-Capable
- Automotive-qualified AEC Q100 grade two
The BQ29209-Q1 device is a secondary overvoltage protection IC for 2-series cell lithium-ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit and automatic cell imbalance correction.
The voltage of each cell in a 2-series cell battery pack is compared to a factory programmed internal reference voltage. If either cell reaches an overvoltage condition, the OUT pin changes from low to high state.
The BQ29209-Q1 can perform automatic voltage-based cell imbalance correction. Balancing can start when the cell voltages are different by nominally 30 mV or more and stops when the difference is nominally 0 mV. Cell balancing is enabled and disabled by the CB_EN pin.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | BQ29209-Q1 Voltage Protection with Automatic Cell Balance for 2-Series Cell Li-I datasheet (Rev. D) | 2020/09/30 | |
| Functional safety information | BQ29209-Q1 Functional Safety FIT Rate, FMD, and Pin FMA | 2020/08/02 |
설계 및 개발
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VSON (DRB) | 8 | 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.