BQ2980
- Voltage protection:
- Overvoltage (OV): ±10 mV
- Undervoltage (UV): ±20 mV
- Current protection:
- Overcurrent in charge (OCC): ±1 mV
- Overcurrent in discharge (OCD): ±1 mV
- Short circuit in discharge (SCD): ±5 mV
- Temperature protection:
- Overtemperature (OT)
- Additional features:
- Supports as low as a 1-mΩ sense resistor (RSNS)
- High-side protection
- High Vgs FET drive
- 0-V charging (only BQ2980)
- CTR pin for FET override control for system reset/shutdown
- Configure CTR for second OT protection through an external PTC thermistor
- Current consumption:
- NORMAL mode: 4 µA
- SHUTDOWN mode: 0.1-µA maximum
- Package:
- 8-pin X2QFN: 1.50 × 1.50 × 0.37 mm
The BQ298xyz family of devices, featuring integrated charge-pump FET drivers, provides high-side primary battery cell protection for 1-series Li-ion and Li-polymer batteries, enabling consistent Rdson across cell voltages. For better system thermal performance, the BQ298x device’s accuracy enables the use of a sense resistor as low as 1 mΩ.
The CTR pin in the BQ298x device can be configured to override the FET driver by host control to create a system reset or shutdown function. Alternatively, the CTR pin can be configured to connect an external Positive Temperature Coefficient (PTC) thermistor for FET OT protection in addition to the internal die temperature sensor. The BQ2980xy devices support zero-volt (0-V) charging, while the BQ2982xy devices have this disabled.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | BQ298xyz Voltage, Current, Temperature Protectors with an Integrated High-Side NFET Driver for Fast/Flash Charging Single-Cell Li-Ion and Li-Polymer Batteries datasheet (Rev. J) | PDF | HTML | 2022年 12月 19日 |
| White paper | Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) | PDF | HTML | 2024年 4月 30日 | |
| EVM User's guide | BQ2980EVM-883 Evaluation Module for BQ2980 High-Side Driver | 2017年 5月 11日 |
設計與開發
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BQ2980EVM-883 — bq2980 單節電池高壓側保護器評估模組
The BQ2980EVM-883 evaluation module (EVM) is to evaluate the BQ2980 family of high-side protectors. The BQ2980EVM-883 demonstrates the performance of the BQ2980 family in fast charging and high current application as high as 8 A of continuous current. The BQ2980EVM-883 is ideal for evaluation in (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| X2QFN (RUG) | 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。