STC3115 Datasheet, PDF (1/31 Pages) STMicroelectronics – Gas gauge IC with alarm output for handheld applications

STC3115
Gas gauge IC with alarm output for handheld applications
CSP (1.4 x 2.0 mm)
Features
• OptimGauge^TM 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
Datasheet - production data
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.
January 2014
This is information on a product in full production.
DocID023755 Rev 4
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