STC3115 STC3115IJT Battery Management Gas gauge IC

Details

Image

FEATURES

OptimGaugeTM algorithm

0.25% accuracy battery voltage monitoring

Coulomb counter and voltage-mode gas gauge operations

Robust initial open-circuit-voltage (OCV)measurement at power up

Programmable low battery alarm

Internal temperature sensor

Battery swap detection

Low power: 45 µA in power-saving mode, 2 µA max in standby mode

Micro-sized packages:

– 1.4 x 2.0 mm 10-bump CSP package

– 2.0 x 3.0 mm DFN10 package

The STC3115 includes the hardware functions required to implement a low-cost gas gauge for battery monitoring. The STC3115 uses current sensing, Coulomb counting and accurate measurements of the battery voltage to estimate the state-of-charge (SOC) of the battery. An internal temperature sensor simplifies implementation of temperature compensation.