STC3105
Features
- 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
Applications
- Mobile phones, multimedia players, digital cameras
- Portable medical equipment
Description
The STC3105 battery monitor includes the hardware functions required to implement a lowcost gas gauge for battery monitoring. The STC3105 uses accurate measurements of the battery voltage to estimate a battery’s state-ofcharge (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...
