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Home » NEWEST Products » New by Manufacturer » STMicroelectronics » STC3115 Gas Gauge IC - STMicroelectronics
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STMicroelectronics STC3115 Gas Gauge IC

STMicroelectronics STC3115 Gas Gauge IC

STMicroelectronics STC3115 Gas Gauge IC is designed to provide the hardware functions required to implement a low-cost gas gauge for battery monitoring. The STC3115 uses current sensing, Coulomb counting and accurate measurements of the battery voltage 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. STM's STC3115 is an ideal choice for designer who require the advanced features to ensure high performance gas gauging in all application conditions.

  • OptimGauge™ algorithm
  • 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 2.0mm 10-bump CSP package

  • Mobile phones, multimedia players, digital cameras
  • Portable medical equipment
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Block Diagram
  • STMicroelectronics