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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技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | Gas Gauge IC for Power-Assist Applications, BQ2013H 数据表 (Rev. B) | 2013年 12月 11日 | |||
选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
应用手册 | HDQ Communication Basics (Rev. A) | 2008年 9月 18日 | ||||
应用手册 | HDQ Communication Basics for TI Battery Monitor ICs | 2001年 5月 16日 | ||||
用户指南 | EV2200-13H Evaluation System User's Guide (Rev. A) | 2000年 3月 8日 |
设计和开发
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订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点