BQ2962
- 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
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | BQ296xxx Overvoltage Protection for 2-Series, 3-Series, and 4-Series Cell Li-Ion Batteries with Regulated Output Supply datasheet (Rev. V) | PDF | HTML | 2025/9/17 |
設計與開發
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BQ40Z50EVM-561 — BQ40Z50 評估板
BQ40z50EVM 是用於評估 bq40z50 電量計功能的完整系統。如 BQ40z50 產品資料夾所述，此電量計適用於由多芯電池系統供電的應用。此 EVM 包括一個 bq40z50 電路模組、一個電流感測電阻器和四個熱敏電阻。
| 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
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。