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max17201单独的燃油表电路
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max17201单独的燃油表电路
实现单节电池的便携式设备方面表现在更容易和更从Maxim集成产品max17201安全。的max17201是一个超低功率（消耗9µ静态电流仅18µ在主动模式），单细胞，独立的燃料计IC实现最大modelgauge™M5算法不需要宿主相互作用配置。这一特性使max17201一单节侧燃油表的一个很好的选择
MAX17201 operation overview
Fuel gauging can be difficult because battery voltage varies with temperature and load， while coulomb-counting requires sophisticated compensation to eliminate offset accumulation errors. The MAX17201 provides precision measurements of current， voltage， and temperature. The temperature of the battery pack is measured using an internal temperature measurement and up to two external thermistors supported by ratiometric measurements on auxiliary inputs. The sophisticated ModelGauge m5 algorithm converts these raw measurements into accurate values for state-of-charge （SOC）， absolute capacity （mAh）， time-to-empty， and time-to-full （while charging）; all of which improve the user experience of the host device while enabling maximum run-time. Additionally， the MAX17201 provides for programmable alert functions for voltage， temperature， current， and SOC. A 2-wire I2C interface provides access to this data and to control registers.
Furthermore， the ModelGauge m5 algorithm automatically compensates for cell aging， temperature and discharge rate， and provides accurate SOC in mAh or percentage over a wide range of operating conditions. The algorithm combines the short-term accuracy and linearity of a coulomb-counter with the long-term stability of a voltage-based fuel gauge， along with temperature compensation to provide highly accurate fuel gauge data. Also， the algorithm does not suffer from abrupt corrections that normally occur in coulomb-counter algorithms， since tiny continual corrections are distributed over time.
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