STC3115

Active

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.

    Key Features

    • 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
    • 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

Sample & Buy

Part Number
Package
Packing Type
Temperature (°C) Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
Order from ST
Order from Distributors
min
max
STC3115AIQT UFDFPN 2X3 10L Tape And Reel -40 85
Active
EAR99 PHILIPPINES 1.26 / 1k Buy now Check Availability

Distributor availability ofSTC3115AIQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 531 1 Order Now
RS COMPONENTS EUROPE 2360 1 Order Now
AVNET AMERICA 12000 0 Order Now
Newark Element14 AMERICA 940 0 Order Now
ARROW AMERICA 4596 1 Order Now
MOUSER WORLDWIDE 3169 1 Order Now

Distributor reported inventory date: 2020-05-28

Distributor Name

DIGIKEY

Stock

531

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2360

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

12000

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

940

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

4596

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

3169

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-05-28

STC3115AIJT Chip Scale Package 0.4mm pitch Tape And Reel -40 85
Active
EAR99 FRANCE 1.176 / 1k Check Availability

Distributor availability ofSTC3115AIJT

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 4855 1 Order Now
ARROW EUROPE 5000 0 Order Now
ARROW AMERICA 143328 1 Order Now
Farnell Element14 EUROPE 459 1 Order Now
ANGLIA Live EUROPE 100 5000 Order Now

Distributor reported inventory date: 2020-05-28

Distributor Name

RS COMPONENTS

Stock

4855

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

143328

Min.Order

1

Region

AMERICA Order Now

Farnell Element14

Stock

459

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

5000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-05-28

STC3115IJT Chip Scale Package 0.4mm pitch Tape And Reel -40 85
Active
EAR99 CHINA Buy now Check Availability

Distributor availability ofSTC3115IJT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 339 1 Order Now
ARROW EUROPE 5000 0 Order Now
Newark Element14 AMERICA 1950 0 Order Now
Farnell Element14 EUROPE 2449 1 Order Now

Distributor reported inventory date: 2020-05-28

Distributor Name

DIGIKEY

Stock

339

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

1950

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

2449

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-05-28

STC3115IQT UFDFPN 2X3 10L Tape And Reel -40 85
Active
EAR99 PHILIPPINES 1.26 / 1k Buy now Check Availability

Distributor availability ofSTC3115IQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1790 1 Order Now
Newark Element14 AMERICA 1098 0 Order Now
MOUSER WORLDWIDE 2801 1 Order Now
Farnell Element14 EUROPE 1020 1 Order Now

Distributor reported inventory date: 2020-05-28

Distributor Name

DIGIKEY

Stock

1790

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

1098

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2801

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1020

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-05-28

STC3115AIQT

Package

UFDFPN 2X3 10L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

1.26 / 1k

Distributor availability ofSTC3115AIQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 531 1 Order Now
RS COMPONENTS EUROPE 2360 1 Order Now
AVNET AMERICA 12000 0 Order Now
Newark Element14 AMERICA 940 0 Order Now
ARROW AMERICA 4596 1 Order Now
MOUSER WORLDWIDE 3169 1 Order Now

Distributor reported inventory date: 2020-05-28

Distributor Name

DIGIKEY

Stock

531

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2360

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

12000

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

940

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

4596

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

3169

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-05-28

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Budgetary Price (US$)* / Qty

1.26 / 1k

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

STC3115AIJT

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

1.176 / 1k

Distributor availability ofSTC3115AIJT

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 4855 1 Order Now
ARROW EUROPE 5000 0 Order Now
ARROW AMERICA 143328 1 Order Now
Farnell Element14 EUROPE 459 1 Order Now
ANGLIA Live EUROPE 100 5000 Order Now

Distributor reported inventory date: 2020-05-28

Distributor Name

RS COMPONENTS

Stock

4855

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

143328

Min.Order

1

Region

AMERICA Order Now

Farnell Element14

Stock

459

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

5000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-05-28

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Budgetary Price (US$)* / Qty

1.176 / 1k

ECCN (US)

EAR99

Country of Origin

FRANCE

STC3115IJT

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

Distributor availability ofSTC3115IJT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 339 1 Order Now
ARROW EUROPE 5000 0 Order Now
Newark Element14 AMERICA 1950 0 Order Now
Farnell Element14 EUROPE 2449 1 Order Now

Distributor reported inventory date: 2020-05-28

Distributor Name

DIGIKEY

Stock

339

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

1950

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

2449

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-05-28

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Budgetary Price (US$)* / Qty

ECCN (US)

EAR99

Country of Origin

CHINA

STC3115IQT

Package

UFDFPN 2X3 10L

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

1.26 / 1k

Distributor availability ofSTC3115IQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1790 1 Order Now
Newark Element14 AMERICA 1098 0 Order Now
MOUSER WORLDWIDE 2801 1 Order Now
Farnell Element14 EUROPE 1020 1 Order Now

Distributor reported inventory date: 2020-05-28

Distributor Name

DIGIKEY

Stock

1790

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

1098

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2801

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1020

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-05-28

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Budgetary Price (US$)* / Qty

1.26 / 1k

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) 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

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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS9300
      Gas gauge IC with alarm output for handheld applications
      9.0
      713.02 KB
      PDF
      DS9300

      Gas gauge IC with alarm output for handheld applications

    • Description Version Size Action
      AN4324
      STC3115 system integration
      2.0
      847.32 KB
      PDF
      AN4324

      STC3115 system integration

    • Description Version Size Action
      UM1836
      STSW-BAT001 open source driver for the STC3115
      1.0
      153.87 KB
      PDF
      UM1836

      STSW-BAT001 open source driver for the STC3115

Presentations & Training Material

    • Description Version Size Action
      Health and Wellness Mobility Cloud computing
      1.32 MB
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      Health and Wellness Mobility Cloud computing

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STC3115AIJT
Active
Chip Scale Package 0.4mm pitch Industrial Ecopack3
STC3115AIQT
Active
UFDFPN 2X3 10L Industrial Ecopack3
STC3115IJT
Active
Chip Scale Package 0.4mm pitch Industrial Ecopack3
STC3115IQT
Active
UFDFPN 2X3 10L Industrial Ecopack3

STC3115AIJT

Package:

Chip Scale Package 0.4mm pitch

Material Declaration**:

PDF XML

Marketing Status

Active

Package

Chip Scale Package 0.4mm pitch

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STC3115AIQT

Package:

UFDFPN 2X3 10L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

UFDFPN 2X3 10L

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STC3115IJT

Package:

Chip Scale Package 0.4mm pitch

Material Declaration**:

PDF XML

Marketing Status

Active

Package

Chip Scale Package 0.4mm pitch

Grade

Industrial

RoHS Compliance Grade

Ecopack3

STC3115IQT

Package:

UFDFPN 2X3 10L

Material Declaration**:

Marketing Status

Active

Package

UFDFPN 2X3 10L

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) 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.