data brief for further information contact your local stmicroelectronics sales office. november 2011 doc id 022472 rev 1 1/6 6 STEVAL-ISB012V1 battery monitoring system demonstration board based on the stc3105 features the stc3105 device uses the coulomb counter method to track state-of-charge (soc) or to track when the battery is charging or discharging accurate measurements of the battery voltage to estimate the battery state-of-charge battery parameters are sent to the pc via usb using a virtual com port and can be observed using hyperterminal as well as a gui the board can also display parameters on the lcd charging and discharging status is displayed by the + and - sign respectively on both the lcd and led the board also shows low voltage and soc alarms the board can monitor a battery with a capacity up to +/-10950 mah rohs compliant description the STEVAL-ISB012V1 demonstration board provides a simple, compact solution to monitor voltage, current, and capacity of single cell li-ion batteries using the stc3105, which has a highly efficient gas gauge. the STEVAL-ISB012V1 demonstration board has an internal charger in order to charge the battery and can be powered through a usb port or by using a dc adaptor. www.st.com
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STEVAL-ISB012V1 ci rcuit schematic doc id 022472 rev 1 3/6 figure 2. circuit schematic (2 of 3) ! - v
circuit schematic STEVAL-ISB012V1 4/6 doc id 022472 rev 1 figure 3. circuit schematic (3 of 3) ! - v
STEVAL-ISB012V1 revision history doc id 022472 rev 1 5/6 2 revision history table 1. document revision history date revision changes 23-nov-2011 1 initial release.
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