ST STC3115AIQT

电池监控器-40°C ~ 85°C（TA）

Overview

The STC3115AIQT includes the hardware functions required to implement a low-cost gas gauge for battery monitoring. The STC3115AIQT 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. An alarm output signals a low SOC condition and can also indicate low battery voltage. The alarm threshold levels are programmable. The STC3115AIQT offers advanced features to ensure high performance gas gauging in all application conditions.

– 2.0 x 3.0 mm DFN10 package

Features

• Programmable low battery alarm

• Internal temperature sensor

• Battery swap detection

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

• OptimGauge? 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

Applications

• Portable medical equipment

• Mobile phones, multimedia players, digital cameras