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Battery monitoring solution with alarm output based on STC3115 for gas meter applications

STEVAL-ISB014V2

Overview

The STEVAL-ISB014V2 product evaluation board is based on the STC3115. This device includes the hardware functions required to implement a low-cost gas gauge for battery monitoring. It uses current sensing, Coulomb counting and accurate battery voltage measurements to estimate the state-of-charge (SOC) of the battery. An internal temperature sensor simplifies implementation of temperature compensation.

An alarm output signals a low SOC condition and can also indicate low battery voltage. The alarm threshold levels are programmable.
The STC3115 offers advanced features to ensure high performance gas measurement in all application conditions.
The STEVAL-ISB014V2 evaluation board is suitable for portable medical equipment, mobile phones, multimedia players and digital cameras.

Main features

0.25% accuracy battery voltage monitoring
Coulomb counter and voltage-mode gas gauge operations
Robust initial open-circuit-voltage (OCV) measurement at power-up with debounce delay
Low battery level alarm output with programmable thresholds
Internal temperature sensor
Battery swap detection
Low power
- 45 μA in power-saving mode
- 2 μA max in standby mode
1.4 x 2.0 mm 10-bump CSP package
RoHS compliant

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-23 13:00:27

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