ST Life.augmented

STC3115

Gas gauge IC with alarm output for handheld applications
  • active Active

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.

pdf Please read
Errata Sheet
pdf Download
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
  • 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

Design Resources

Top

Technical Documentation

Product Specifications

Description Version Size
pdf
DS9300: Gas gauge IC with alarm output for handheld applications
7.0 838 KB

Application Notes

Description Version Size
pdf
AN4324: STC3115 system integration
2.0 847 KB

User Manual

Description Version Size
pdf
UM1836: STSW-BAT001 open source driver for the STC3115
1.0 154 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STSW-BAT001 STC3115 Open source driver
STEVAL-ISB014V2 Battery monitoring with alarm output for gas gauge applications based on the STC3115

Sample & Buy

Top
Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STC3115AIJTNRNDFlip-Chip 400uTape And Reel-4085_-.95Distributor reported inventory date: 2015-04-20
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA50005000
AVNETOrder NowAMERICA50200
P&SOrder NowASIA/PACIFIC501
DIGIKEYOrder NowWORLDWIDE46961
MOUSEROrder NowWORLDWIDE26001
Ecopack2PDF
XML
STC3115AIQTNRNDUFDFPN 2X3 10LTape And Reel-4085_-1.04Distributor reported inventory date: 2015-04-20
Distributor NameRegionStockMin. order
DIGIKEYOrder NowWORLDWIDE25561
MOUSEROrder NowWORLDWIDE30001
Ecopack2-
STC3115IJTNRNDFlip-Chip 400uTape And Reel-4085_-.95Distributor reported inventory date: 2015-04-20
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA50005000
P&SOrder NowASIA/PACIFIC451
DIGIKEYOrder NowWORLDWIDE56011
MOUSEROrder NowWORLDWIDE223471
Ecopack2PDF
XML
STC3115IQTNRNDUFDFPN 2X3 10LTape And Reel-4085_-1.04Distributor reported inventory date: 2015-04-20
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA30003000
DIGIKEYOrder NowWORLDWIDE29271
MOUSEROrder NowWORLDWIDE30001
Ecopack2-

(*) 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.
Feedback Form
Customer Feedback