UM1481 Datasheet, PDF (1/55 Pages) STMicroelectronics – This document describes an easy and compact solution

UM1481
User manual
STEVAL-ISB012V1 Li-Ion battery monitor and gas-gauge
based on the STC3105
Introduction
This document describes an easy and compact solution to monitor voltage, current, and
capacity of single cell Li-Ion batteries using the STC3105, which has a highly efficient gas-
gauge. In addition, the board has an internal charger in order to charge the battery. Battery
charging can be done through the USB port or by using a DC adaptor.
The board contains the following devices:
■ Battery monitoring device STC3105
■ Microcontroller STM32F102C8
■ Voltage regulator LD1117AXX33
■ Li-Ion battery charger STC4054
■ Step-up converter L6920
Figure 1. STEVAL-ISB012V1 single cell Li-Ion battery monitor and gas-gauge
based on the STC3105
August 2012
Doc ID 022389 Rev 1
1/55
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