BQ2961
- 2-series, 3-series, and 4-series cell overvoltage protection (OVP)
- Fixed delay timer to trigger FET drive output (3-s, 4-s, 5.5-s, or 6.5-s options)
- Factory programmed OVP threshold (threshold range 3.85V to 4.6V)
- Output options: active high
- High-accuracy overvoltage protection: ±10mV
- Regulated supply output with self-disable and/or external enable/disable control
- Options: 3.3V, 2.5V, and 1.8V (BQ2961)
- Options: 3.3V, 3.15V, 3.0V (BQ2962)
- Low power consumption ICC ~ 4µA (VCELL(ALL) < VPROTECT)
- Extra low power consumption with reg output disabled, ICC ~ 1.2µA
- Low leakage current per cell input < 100nA
- Small package footprint
- 8-Pin WSON (2mm × 2mm)
The BQ296xxx family is a high-accuracy, low-power overvoltage protector with a 2mA regulated output supply for Li-ion battery pack applications.
Each cell in a 2-series to 4-series cell stack is individually monitored for an overvoltage condition. An internally fixed-delay timer is initiated upon detection of an overvoltage condition on any cell. Upon expiration of the delay timer, an output pin is triggered into an active state to indicate that an overvoltage condition has occurred.
The regulated output supply delivers up to 2mA (max) output current to drive always-on circuits, such as a real-time clock (RTC) oscillator. The BQ296xxx family has a self-disable function to turn off the regulated output if any cell voltage falls below a certain threshold, thereby preventing drain on the battery, and provides an external control to enable or disable the regulated output.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | BQ296xxx Overvoltage Protection for 2-Series, 3-Series, and 4-Series Cell Li-Ion Batteries with Regulated Output Supply datasheet (Rev. U) | PDF | HTML | 2024年 10月 2日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
BQ4050EVM-561 — BQ4050 評估板
BQ40Z50EVM-561 — BQ40Z50 評估板
BQ40z50EVM is a complete system useful for evaluating the functionality of the bq40z50 fuel gauge. As described on the BQ40z50 product folder, this gauge is appropriate for applications powered by multi-cell battery systems. The EVM includes one bq40z50 circuit module, a current sense resistor, and (...)
TIDA-00883 — 1 至 4 節串聯鋰離子電池組管理器參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WSON (DSG) | 8 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。