BQ2971
- Input voltage range pack+: VSS – 0.3V to 12V
- FET drive:
- CHG and DSG FET drive output
- Voltage sensing across external FETs for overcurrent protection (OCP) is within ±5mV (typical)
- Fault detection
- Overcharge detection (OVP)
- Over-discharge detection (UVP)
- Charge overcurrent detection (OCC)
- Discharge overcurrent detection (OCD)
- Load short-circuit detection (SCP)
- Zero voltage charging for depleted battery
- Factory programmed fault protection thresholds
- Fault detection voltage thresholds
- Fault trigger timers
- Fault recovery timers
- Modes of operation without battery charger enabled
- NORMAL mode ICC = 4µA
- Shutdown Iq = 100nA
- Operating temperature range TA = –40°C to +85°C
- Package:
- 6-pin DSE (1.50mm × 1.50mm × 0.75mm)
The BQ2970 battery cell protection device provides an accurate monitor and trigger threshold for overcurrent protection during high discharge/charge current operation or battery overcharge conditions.
The BQ2970 device provides the protection functions for Li-ion/Li-polymer cells, and monitors across the external power FETs for protection due to high charge or discharge currents. In addition, there is overcharge and depleted battery monitoring and protection. These features are implemented with low current consumption in NORMAL mode operation.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | BQ297xx Cost-Effective Voltage and Current Protection Integrated Circuit for Single-Cell Li-Ion and Li-Polymer Batteries datasheet (Rev. I) | PDF | HTML | 2024年 8月 2日 |
| Technical article | Overcoming common design challenges in an UV sterilization box system | PDF | HTML | 2020年 7月 27日 | |
| Technical article | Accelerate your electric mask design | PDF | HTML | 2020年 7月 1日 | |
| Technical article | Get smart: How intelligent battery gauges improve battery life in continuous gluco | PDF | HTML | 2019年 4月 19日 | |
| Technical article | Battery-charging tips for video doorbell applications | PDF | HTML | 2019年 4月 15日 | |
| Application brief | Benefits of Battery Gauges and Protectors in Medical Applications | PDF | HTML | 2018年 7月 2日 | |
| EVM User's guide | bq29700 EVM User’s Guide | 2014年 3月 4日 |
設計與開發
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BQ29700EVM-610 — 單節電池防護 IC 評估模組
The bq29700EVM is a complete evaluation system for the bq297xx family of single cell battery protection ICs. The EVM includes one bq29700-based circuit module.The bq29700-based circuit module is a complete and compact example solution of a bq29700 single cell battery protection IC. The circuit (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WSON (DSE) | 6 | 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