max17201單獨(dú)的燃油表電路

　　max17201單獨(dú)的燃油表電路

　　實(shí)現(xiàn)單節(jié)電池的便攜式設(shè)備方面表現(xiàn)在更容易和更從Maxim集成產(chǎn)品max17201安全。的max17201是一個(gè)超低功率（消耗9μ靜態(tài)電流僅18μ在主動(dòng)模式），單細(xì)胞，獨(dú)立的燃料計(jì)IC實(shí)現(xiàn)最大modelgauge?M5算法不需要宿主相互作用配置。這一特性使max17201一單節(jié)側(cè)燃油表的一個(gè)很好的選擇

　　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.