ST Life.augmented

STC3115

Gas gauge IC with alarm output for handheld applications
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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.

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Errata Sheet
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Datasheet

Key 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

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS9300: Gas gauge IC with alarm output for handheld applications
4.0 641 KB

Application Notes

Description Version Size
pdf
AN4324: STC3115 system integration
1.0 964 KB

Presentations & Training Material

Presentations

Description Version Size
pdf
ST offering in Wearable - Analog and Mixed Signal Portfolio
1,508 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STEVAL-ISB014V2 Battery monitoring with alarm output for gas gauge applications based on the STC3115

Publications and Collaterals

Brochure

Description Version Size
pdf
Analog ICs for wearable devices
981 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STC3115AIJTActiveFlip-Chip 400uTape And Reel-4085_Free Samples.95Distributor reported inventory date: 2014-10-20
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA50005000
AVNETOrder NowAMERICA8800
DIGIKEYOrder NowWORLDWIDE17621
MOUSEROrder NowWORLDWIDE52071
Ecopack2PDF
XML
STC3115AIQTActiveUFDFPN 2X3 10LTape And Reel-4085_-1.04No availability reported, please contact our Sales officeEcopack2-
STC3115IJTActiveFlip-Chip 400uTape And Reel-4085_Free Samples.95Distributor reported inventory date: 2014-10-20
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA50005000
DIGIKEYOrder NowWORLDWIDE27781
FUTUREOrder NowWORLDWIDE50005000
MOUSEROrder NowWORLDWIDE247291
Ecopack2PDF
XML
STC3115IQTActiveUFDFPN 2X3 10LTape And Reel-4085_-1.04No availability reported, please contact our Sales officeEcopack2-

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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