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
Budgetary Price (US$)*
Quantity
ECCN (US)
More info
Order from Distributors
Order from ST
min
max
STC3115AIQT UFDFPN 2X3 10L Tape And Reel -40 85
Active
1.26 1000 EAR99
MORE INFO

Country of Origin:

-

Check Availability

Distributor availability ofSTC3115AIQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 12420 1 Order Now
AVNET AMERICA 3000 0 Order Now
Newark Element14 AMERICA 1063 0 Order Now
ARROW AMERICA 11294 1 Order Now
MOUSER WORLDWIDE 5377 1 Order Now
Farnell Element14 EUROPE 4687 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

12420

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

1063

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

11294

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

5377

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4687

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Buy now
STC3115AIJT Chip Scale Package 0.4mm pitch Tape And Reel -40 85
Active
1.176 1000 EAR99
MORE INFO

Country of Origin:

CHINA

Check Availability

Distributor availability ofSTC3115AIJT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 19219 1 Order Now
AVNET AMERICA 10000 0 Order Now
Newark Element14 AMERICA 2000 0 Order Now
ARROW AMERICA 49476 5000 Order Now
MOUSER WORLDWIDE 3610 1 Order Now
Farnell Element14 EUROPE 2520 1 Order Now
ANGLIA Live EUROPE 100 5000 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

19219

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

10000

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

2000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

49476

Min.Order

5000

Region

AMERICA Order Now

MOUSER

Stock

3610

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2520

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

5000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Buy now
STC3115IJT Chip Scale Package 0.4mm pitch Tape And Reel -40 85
Active
- EAR99
MORE INFO

Country of Origin:

CHINA

Check Availability

Distributor availability ofSTC3115IJT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 736 1 Order Now
ARROW EUROPE 5000 0 Order Now
Newark Element14 AMERICA 2000 0 Order Now
ARROW AMERICA 5000 5000 Order Now
MOUSER WORLDWIDE 7131 1 Order Now
Farnell Element14 EUROPE 2800 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

736

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

2000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

5000

Min.Order

5000

Region

AMERICA Order Now

MOUSER

Stock

7131

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2800

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Buy now
STC3115IQT UFDFPN 2X3 10L Tape And Reel -40 85
Active
1.26 1000 EAR99
MORE INFO

Country of Origin:

PHILIPPINES

Check Availability

Distributor availability ofSTC3115IQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2521 1 Order Now
ARROW EUROPE 3000 0 Order Now
Newark Element14 AMERICA 1200 0 Order Now
MOUSER WORLDWIDE 1097 1 Order Now
Farnell Element14 EUROPE 1765 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

2521

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

3000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

1200

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1097

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1765

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Buy now

STC3115AIQT

Package

UFDFPN 2X3 10L

Packing Type

Tape And Reel

Unit Price (US$)

1.26*

Distributor availability ofSTC3115AIQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 12420 1 Order Now
AVNET AMERICA 3000 0 Order Now
Newark Element14 AMERICA 1063 0 Order Now
ARROW AMERICA 11294 1 Order Now
MOUSER WORLDWIDE 5377 1 Order Now
Farnell Element14 EUROPE 4687 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

12420

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

1063

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

11294

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

5377

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4687

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Unit Price (US$)

1.26

Quantity

1000

ECCN (US)

EAR99

Country of Origin

-

STC3115AIJT

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Unit Price (US$)

1.176*

Distributor availability ofSTC3115AIJT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 19219 1 Order Now
AVNET AMERICA 10000 0 Order Now
Newark Element14 AMERICA 2000 0 Order Now
ARROW AMERICA 49476 5000 Order Now
MOUSER WORLDWIDE 3610 1 Order Now
Farnell Element14 EUROPE 2520 1 Order Now
ANGLIA Live EUROPE 100 5000 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

19219

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

10000

Min.Order

0

Region

AMERICA Order Now

Newark Element14

Stock

2000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

49476

Min.Order

5000

Region

AMERICA Order Now

MOUSER

Stock

3610

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2520

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

100

Min.Order

5000

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Unit Price (US$)

1.176

Quantity

1000

ECCN (US)

EAR99

Country of Origin

CHINA

STC3115IJT

Package

Chip Scale Package 0.4mm pitch

Packing Type

Tape And Reel

Unit Price (US$)

*

Distributor availability ofSTC3115IJT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 736 1 Order Now
ARROW EUROPE 5000 0 Order Now
Newark Element14 AMERICA 2000 0 Order Now
ARROW AMERICA 5000 5000 Order Now
MOUSER WORLDWIDE 7131 1 Order Now
Farnell Element14 EUROPE 2800 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

736

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

2000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

5000

Min.Order

5000

Region

AMERICA Order Now

MOUSER

Stock

7131

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2800

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Unit Price (US$)

-

Quantity

-

ECCN (US)

EAR99

Country of Origin

CHINA

STC3115IQT

Package

UFDFPN 2X3 10L

Packing Type

Tape And Reel

Unit Price (US$)

1.26*

Distributor availability ofSTC3115IQT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2521 1 Order Now
ARROW EUROPE 3000 0 Order Now
Newark Element14 AMERICA 1200 0 Order Now
MOUSER WORLDWIDE 1097 1 Order Now
Farnell Element14 EUROPE 1765 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

2521

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

3000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

1200

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1097

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1765

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Unit Price (US$)

1.26

Quantity

1000

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
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      DS9300

      Gas gauge IC with alarm output for handheld applications

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      STC3115 system integration
      2.0
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      STSW-BAT001 open source driver for the STC3115
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      STSW-BAT001 open source driver for the STC3115

Presentations & Training Material

    • Description Version Size Action
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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**:

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.