STC3115

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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
Approximate Price (US$)* / Qty
Order from ST
Order from Distributors
min
max
STC3115AIQT UFDFPN 2X3 10L Tape And Reel -40 85
Active
EAR99 - 2.80 / 1k Buy now Check Availability

Distributor availability ofSTC3115AIQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1335 1 Order Now
RS COMPONENTS EUROPE 2485 1 Order Now
AVNET AMERICA 12000 0 Order Now
Newark Element14 AMERICA 1000 0 Order Now
ARROW AMERICA 469 1 Order Now
MOUSER WORLDWIDE 4191 1 Order Now
Farnell Element14 EUROPE 4035 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

DIGIKEY

Stock

1335

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2485

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

12000

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

1000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

469

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

4191

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4035

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

STC3115AIJT Chip Scale Package 0.4mm pitch Tape And Reel -40 85
Active
EAR99 CHINA 1.67 / 1k Buy now Check Availability

Distributor availability ofSTC3115AIJT

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 4890 1 Order Now
AVNET AMERICA 5000 0 Order Now
ARROW EUROPE 5000 0 Order Now
ARROW AMERICA 50488 5000 Order Now
MOUSER WORLDWIDE 7326 1 Order Now
Farnell Element14 EUROPE 651 1 Order Now
ANGLIA Live EUROPE 100 5000 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

RS COMPONENTS

Stock

4890

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

50488

Min.Order

5000

Region

AMERICA Order Now

MOUSER

Stock

7326

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

651

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

5000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

STC3115IJT Chip Scale Package 0.4mm pitch Tape And Reel -40 85
Active
EAR99 CHINA 1.44 Buy now Check Availability

Distributor availability ofSTC3115IJT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 599 1 Order Now
ARROW EUROPE 5000 0 Order Now
Newark Element14 AMERICA 1950 0 Order Now
Farnell Element14 EUROPE 2474 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

DIGIKEY

Stock

599

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

2474

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

STC3115IQT UFDFPN 2X3 10L Tape And Reel -40 85
Active
EAR99 PHILIPPINES 2.80 / 1k Buy now Check Availability

Distributor availability ofSTC3115IQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1863 1 Order Now
Newark Element14 AMERICA 1098 0 Order Now
MOUSER WORLDWIDE 2829 1 Order Now
Farnell Element14 EUROPE 1020 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

DIGIKEY

Stock

1863

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

1098

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2829

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1020

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

STC3115AIQT

Package

UFDFPN 2X3 10L

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

2.80 / 1k

Distributor availability ofSTC3115AIQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1335 1 Order Now
RS COMPONENTS EUROPE 2485 1 Order Now
AVNET AMERICA 12000 0 Order Now
Newark Element14 AMERICA 1000 0 Order Now
ARROW AMERICA 469 1 Order Now
MOUSER WORLDWIDE 4191 1 Order Now
Farnell Element14 EUROPE 4035 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

DIGIKEY

Stock

1335

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2485

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

12000

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

1000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

469

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

4191

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4035

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Budgetary Price (US$)* / Qty

2.80 / 1k

ECCN (US)

EAR99

Country of Origin

-

STC3115AIJT

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

1.67 / 1k

Distributor availability ofSTC3115AIJT

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 4890 1 Order Now
AVNET AMERICA 5000 0 Order Now
ARROW EUROPE 5000 0 Order Now
ARROW AMERICA 50488 5000 Order Now
MOUSER WORLDWIDE 7326 1 Order Now
Farnell Element14 EUROPE 651 1 Order Now
ANGLIA Live EUROPE 100 5000 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

RS COMPONENTS

Stock

4890

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

50488

Min.Order

5000

Region

AMERICA Order Now

MOUSER

Stock

7326

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

651

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

5000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Budgetary Price (US$)* / Qty

1.67 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

STC3115IJT

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

1.44

Distributor availability ofSTC3115IJT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 599 1 Order Now
ARROW EUROPE 5000 0 Order Now
Newark Element14 AMERICA 1950 0 Order Now
Farnell Element14 EUROPE 2474 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

DIGIKEY

Stock

599

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

2474

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Budgetary Price (US$)* / Qty

1.44

ECCN (US)

EAR99

Country of Origin

CHINA

STC3115IQT

Package

UFDFPN 2X3 10L

Packing Type

Tape And Reel

Approximate Price (US$)* / Qty

2.80 / 1k

Distributor availability ofSTC3115IQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1863 1 Order Now
Newark Element14 AMERICA 1098 0 Order Now
MOUSER WORLDWIDE 2829 1 Order Now
Farnell Element14 EUROPE 1020 1 Order Now

Distributor reported inventory date: 2020-03-30

Distributor Name

DIGIKEY

Stock

1863

Min.Order

1

Region

WORLDWIDE Order Now

Newark Element14

Stock

1098

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2829

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1020

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-03-30

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Budgetary Price (US$)* / Qty

2.80 / 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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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

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      AN4324
      STC3115 system integration
      2.0
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      STC3115 system integration

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      UM1836
      STSW-BAT001 open source driver for the STC3115
      1.0
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      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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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.

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