Средства разработки интегральных схем (ИС) управления питанием STEVAL-ISB014V2

EVA BOARD , BATTERY MONITOR, GAS GAUGE

Battery monitor with alarm output for gas gauge applications 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.

• 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 ( 45µA in power-saving mode, 2µA max in standby mode)
• 1.4 x 2mm 10-bump CSP package