STEVAL-ISQ008V1 Datasheet, PDF (1/7 Pages) STMicroelectronics – Fuel gauge implementation based on the STM32F103x

STEVAL-ISQ008V1
Fuel gauge implementation based on the STM32F103x
Data brief
Features
■ Single-cell Li-Ion battery fuel gauge technology
■ Dual selectable power input source:
– USB connection or external DC power
source 5 V
■ Battery fuel capacity monitoring by on-chip 12-
bit ADC
■ Based on the Micro STM32 (ARM Cortex™-M3
core) family
■ RoHS compliant
Description
Fuel gauge technology is a smart system which
monitors battery capacity, predicting the
remaining capacity and displaying its status. The
basic unit of measurement used for battery
capacity is Coulomb counting, in which the
current flowing through the battery is continuously
monitored and integrated to calculate the
capacity.
Current measurement is done when the battery is
both discharging and charging. Therefore, both
the IN and OUT current are used to calculate the
remaining capacity of the battery.
Battery capacity is measured in mAh.
STEVAL-ISQ008V1
January 2011
Doc ID 18364 Rev 1
For further information contact your local STMicroelectronics sales office.
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