STC3115AIQT datasheet(1/31 Pages) STMICROELECTRONICS

部品番号	STC3115AIQT

部品情報	Gas gauge IC with alarm output for handheld applications

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メーカー	STMICROELECTRONICS [STMicroelectronics]

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This is information on a product in full production.

January 2014

DocID023755 Rev 4

1/31

STC3115

Gas gauge IC with alarm output for handheld applications

Datasheet

- production data

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 with debounce

delay

• Low battery level alarm output with

programmable thresholds

• Internal temperature sensor

• Battery swap detection

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

max in standby mode

• 1.4 x 2.0 mm 10-bump CSP package

Applications

• Mobile phones, multimedia players, digital

cameras

• Portable medical equipment

Description

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.

An alarm output signals a low SOC condition and

can also indicate low battery voltage. The alarm

threshold levels are programmable.

The STC3115 offers advanced features to ensure

high performance gas gauging in all application

conditions.

CSP (1.4 x 2.0 mm)

www.st.com

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