STC3105 Battery monitor IC with alarm output for gas gauge applications
The STC3105 battery monitor includes the hardware functions required to implement a low-cost gas gauge for battery monitoring. The STC3105 uses accurate measurements of the battery voltage to estimate a battery’s state-of-charge (SOC). It uses a low cost sense resistor to precisely sense the charge or discharge states, detect light-load conditions without ambiguity for voltage measurements, and accurate SOC calculation. The coulomb counter method is used for SOC tracking in high-load conditions.
An alarm output signals a low SOC condition, and can also indicate low battery voltage. The alarm threshold levels are programmable.
The device is programmable through an I²C interface
技术特性
- 0.5% accuracy battery voltage monitoring
- Low battery alarm output with programmable thresholds
- Low power: 60 μA in power-saving mode, 2 μA max in standby mode
- Ideal for implementation of robust gas gauge systems using open-circuit voltage and coulomb counter methods
- Small 3x2 mm package
应用领域
- Mobile phones, multimedia players, digital
cameras
- Portable medical equipment
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管脚定义图
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STC3105 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| STC3105IQT |
Active |
|
1000 |
TDFN 3.0X2.0X0.75 8L PITCH 0.65 |
Tape And Reel |
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DATASHEET
| 描述 |
版本 |
大小 |
| STC3105 : DS8643: Battery monitor IC with alarm output for gas gauge applications |
1 |
321KB |
APPLICATION NOTES
| 描述 |
版本 |
大小 |
| AN3395: Sensing resistor selection and usage in STC310x battery monitoring applications |
1 |
105KB |
USER MANUALS
| 描述 |
版本 |
大小 |
| UM1481: STEVAL-ISB012V1 Li-Ion battery monitor and gas-gauge based on the STC3105 |
1 |
5356KB |
| UM1054: STEVAL-ISB013v1 demonstration board based on the STC3105 battery monitor IC with alarm output for gas gauge applications |
1 |
306KB |
BOARDS AND TOOLS
| 型号 |
描述 |
| STEVAL-ISB012V1 |
Battery monitoring system demonstration board based on the STC3105 |
| STEVAL-ISB013V1 |
Battery monitor demonstration board with alarm output for gas gauge applications based on the STC3105 |
