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  Tiny, Accurate Battery Gas Gauges with Easy-to-Use I2C Interface and Optional Integrated Precision Sense Resistors &mdash LT Journal
  PDF, 732 Kb, 档案已发布: Apr 1, 2010
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  Tiny, Accurate Battery Gas Gauges with Easy-to-Use I2C
  Interface and Optional Integrated Precision Sense Resistors
  Christoph Schwoerer, Axel Klein and Bernhard Engl Imagine your daughter is catching her first wave on a
  surfboard and your video camera shuts down because the
  battery—reading half full when you started filming a few
  minutes ago—is suddenly empty. The problem is inaccurate
  battery gas gauging. Inaccurate fuel gauging is a common
  nuisance as many portable devices derive remaining
  battery capacity directly from battery voltage. This method
  is cheap but inaccurate since the relationship between
  battery voltage and capacity has a complex dependency
  on temperature, load conditions and usage history.
  More accurate battery gauging can be
  achieved by monitoring not only the
  battery voltage but also by tracking the
  charge that goes in and out of the battery. For applications requiring accurate
  battery gas gauging, the LTC2941 and
  LTC2942 coulomb counters are tiny and
  easy-to-use solutions. These feature-rich
  devices are small and integrated enough to
  fit easily into the latest handheld gadgets.
  The LTC2941 is a battery gas gauge device
  designed for use with single Li-Ion cells …

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制造商分类

• Power Management > Battery Management > Coulomb Counter (Battery Fuel Gauge)
• Monitor, Control and Protection > Temperature Monitors > Digital Temperature Measurement Systems

其他名称:

LTC2942IDCBPBF, LTC2942IDCB PBF