STMicroelectronics | STEVAL-ISB009V1

The STEVAL-ISB009V1 is a demonstration board, based on the STC3100. It 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.

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
• I2C 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