Battery fuel gauge power electronics for portable handheld devices introduced by Mouser

MANSFIELD, Texas, 22 June 2016. Electronics distributor Mouser Electronics Inc. in Mansfield, Texas, is introducing the MAX1720x and MAX1721x ModelGauge m5 battery fuel gauge power electronics devices from Maxim Integrated.

By Mil & Aero staff
By Mil & Aero staff

MANSFIELD, Texas, 22 June 2016. Electronics distributor Mouser Electronics Inc. in Mansfield, Texas, is introducing the MAX1720x and MAX1721x ModelGauge m5 battery fuel gauge power electronics devices from Maxim Integrated.

These power electronics devices are for pack-side battery fuel gauges in smart phones, tablets, portable medical devices, e-readers, and other handheld devices.

The ultra-low power, stand-alone fuel gauge ICs have low quiescent currents and programmable alert functions for voltage, temperature, current, and state of charge (SOC). The ICs implement the Maxim ModelGauge m5 algorithm without requiring host interaction for configuration.

As handheld devices become thinner, batteries are becoming smaller and capacity is increasing. These accurate battery fuel gauge ICs track battery usage to make efficient use of all available cell energy, extending battery life.

Maxim MAX1720x and MAX1721x ModelGauge m5 battery fuel gauges, available from Mouser Electronics, determine the amount of charge remaining in a battery and how much longer the battery can continue to provide useful power under the current load.

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The ModelGauge m5 algorithm combines the short-term accuracy and linearity, long-term stability, and temperature compensation to provide fuel gauge accuracy.

The ICs automatically compensate for cell aging, temperature, and discharge rate, and provides accurate state of charge (SOC) in milliampere-hours (mAh) or percentage over a wide range of operating conditions. As the battery approaches the critical region near empty, the ModelGauge m5 algorithm invokes a special error-correction mechanism that eliminates any error.

The MAX17201 and MAX17211 ICs are designed to monitor one-cell pack while consuming just 18 microamps in active mode. The MAX17205 and MAX17215 ICs can monitor individual cells of a two-cell (2S) or three-cell (3S) pack or the entire stack voltage of any number of multiple-series cells, with an active-mode consumption of only 25 microamps.

The ICs are available in a lead-free 3-by-3-millimeter 14-pin TDFN package, and are supported by assembled and tested evaluation kits. For more information contact Mouser online at www.mouser.com.

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