BQ2013H
- Accurate measurement of available charge in rechargeable batteries
- Accurate measurement of available charge in rechargeable batteries
- Designed for electric assist bicycles and other applications
- Measures a wide dynamic current range
- Supports NiCd,NiMH or lead acid
- Designed for battery pack integration
- 120µA typical standby current (self-discharge estimation mode)
- Small size enables implementations in as little as 1/2 square inch of PCB
- Direct drive of LEDs for capacity display
- Automatic charge and selfdischarge compensation using internal temperature sensor
- Simple single-wire serial communications port for subassembly testing
- 16-pin narrow SOIC
The bq2013H Gas Gauge IC is intended for battery-pack installation to maintain an accurate record of a batterys available charge. The IC monitors a voltage drop across a sense resistor connected in series between the negative battery terminal and ground to determine charge and discharge activity of the battery. The bq2013H is designed for high cpaacity battery packs used in high-discharge rate systems.
Battery self-discharge is estimated based on an internal timer and temperature sensor. Compensations for battery temperature, rate of charge, and self-discharge are applied to the charge counter to provide available capacity information across a wide range of operating conditions. Initial battery capacity, self-discharge rate, display mode, and charge compensation are set using the PROG1-6 pins. Actual battery capacity is automatically "learned" in the course of a discharge cycle from full to empty.
Nominal available charge may be directly indicated using a five-segment LED display. These segments are used to graphically indicate nominal available charge.
The bq2013H supports a simple single-line bi-directional serial link to an external processor (common ground). The bq2013H outputs battery information in response to external commands over the serial link. To support battery pack testing, the outputs may also be controlled by command. The external processor may also overwrite some of the bq2013H gas gauge data registers.
The bq2013H may operate directly from four nickel cells or three lead acid. With the REF output and an external transistor, a simple, inexpensive regulator can be built to provide VCC from a greater number of cells.
Internal registers include available charge, temperature, capacity, battery ID, and battery status.
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技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | Gas Gauge IC for Power-Assist Applications, BQ2013H datasheet (Rev. B) | 2013年 12月 11日 | |
Application note | HDQ Communication Basics (Rev. A) | 2008年 9月 18日 | ||
Application note | HDQ Communication Basics for TI Battery Monitor ICs | 2001年 5月 16日 | ||
User guide | EV2200-13H Evaluation System User's Guide (Rev. A) | 2000年 3月 8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 |
---|---|---|
SOIC (D) | 16 | 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