Li-Ion battery monitoring and gas gauge evaluation board based on STC3100

The STEVAL-ISB009V1 demonstration board, based on the STC3100, is able to monitor the critical parameters of a single-cell Li-Ion battery (voltage, temperature, and current) and includes hardware functions to implement a gas-gauge for battery charge monitoring, based on a programmable 12-bit to 14-bit A/D converter.

The battery current can be up to 2.5 A and the accumulator system provides a capacity up to +/-7000 mAh with a resolution of 0.2 mAh.

The device is programmable through an I2C interface.

Key Features

  • Accurate battery voltage measurement
  • Coulomb counter to keep track of the battery’s state-of-charge
  • Internal temperature sensor
  • Internal or external 32 kHz time base
  • I2 C interface for battery monitoring and device control
  • 0.5 % battery voltage accuracy
  • 1 % Coulomb counter accuracy using an external RTC signal (3.5 % using the internal time base).
  • Low power consumption: 100 μA in operating conditions, 2 μA in stand-by mode
  • RoHS compliant




Technical Documentation

Product Specifications
Description Version Size
DB1160 DB1160: Li-Ion battery monitoring and gas-gauge demonstration board based on the STC3100 1.1 87 KB
Application Notes
Description Version Size
AN3075 AN3075: Demonstration board user guidelines for the STC3100 battery monitor for gas gauge applications 1.3 411 KB

Hardware Resources

Board Manufacturing Specifications
Description Version Size
Gerber files for STEVAL-ISB009V1 board 1.0 17 KB
Bill of Materials
Description Version Size
BOM for STEVAL-ISB009V1 board 1.0 7 KB
Schematic Pack
Description Version Size
Board schematics for STEVAL-ISB009V1 board 1.0 13 KB


License Agreement
Description Version Size
Evaluation products license agreement 1.4 128 KB
Support & Community

Sample & Buy

Part Number Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors

(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEVAL-ISB009V1 ActiveCARDIndustrialEcopack2

(**) The Material Declaration forms available on 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.