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BQ2019
- Multifunction Monitoring IC Designed to Work With an Intelligent Host Controller
- Provides State-of-Charge Information for Rechargeable Batteries
- Enhances Charge Termination
- Ideal for Single-Cell Li-Ion or 3-Cell NiMH Applications
- High-Accuracy Coulometric Charge and Discharge Current Integration With Offset Calibration
- 32 Bytes of General-Purpose RAM
- 96 Bytes of Flash (Including 32 Bytes of Shadow Flash)
- 8 Bytes of ID ROM
- Internal Temperature Sensor Eliminates the Need for an External Thermistor
- Multifunction Digital Output Port
- High-Accuracy Internal Timebase Eliminates External Crystal Oscillator
- Low Power Consumption
- Operating: <80 µA
- Sleep: <1.5 µA
- Single-Wire HDQ Serial Interface
- Packaging: 8-Lead TSSOP
The bq2019 advanced battery-monitoring IC accurately measures the charge and discharge currents in a rechargeable battery pack. In pack integration, the bq2019 is the basis of a comprehensive battery-capacity management system in portable applications such as cellular phones, PDAs, or other portable products.
The bq2019 works with the host controller in the portable system to implement the battery management system. The host controller interprets the bq2019 data and communicates meaningful battery data to the end-user or power-management system.
The bq2019 provides 64 bytes of general-purpose flash memory, 8 bytes of ID ROM, and 32 bytes of flash-backed RAM for data storage. The nonvolatile memory can maintain formatted battery-monitor information, identification codes, warranty information, or other critical battery parameters when the battery is temporarily shorted or deeply discharged.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | bq2019: Advanced Battery Monitor IC datasheet (Rev. E) | 2003年 2月 18日 | |
| Application note | HDQ Compatibility Between OMAP and BQ Products | 2004年 6月 17日 | ||
| Application note | Gas Gauging Basics Using TI Battery Monitor ICs (Rev. A) | 2003年 10月 17日 | ||
| Application note | Advanced Gas Gauge Firmware Flowchart for TI Battery Monitor ICs | 2002年 8月 28日 | ||
| Application note | Advanced Gas Gauge Host Firmware for TI Battery Monitor ICs | 2001年 5月 16日 | ||
| Application note | HDQ Communication Basics for TI Battery Monitor ICs | 2001年 5月 16日 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TSSOP (PW) | 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