MAX17261METD+T

MAX17261METD+T is a 5.1μA multi-cell fuel gauge with ModelGauge m5 EZ. It is an ultra-low power fuel gauge IC that implements the ModelGauge™ m5 algorithm. The IC monitors a multiple-series cell battery pack with an external resistor divider. The IC provides precision measurements of current, voltage, and temperature. The temperature of the battery pack is measured using an internal temperature sensor or external thermistor. The ModelGauge m5 EZ algorithm makes fuel gauge implementation easy by eliminating battery characterization requirements and simplifying host software interaction. The algorithm provides tolerance against battery diversity for most lithium batteries and applications. Typical applications are tablets, 2-in-1 laptops, digital still, video, and action cameras, medical devices, handheld computers and terminals, financial terminals, mobile printers, augmented/virtual reality devices, robots, E-bikes, battery backups, wireless speakers.

• No characterization is required for EZ performance, robust against battery variation
• Eliminates error near empty voltage, eliminates coulomb counter drift
• Compensates for age, current, and temperature, does not require empty, full, or idle states
• Low 5.1μA operating current, monitors multiple-cell battery pack
• PCB metal sensing + temperature compensation, supports Li+ and variants including LiFePO4
• Thermistor or ±1°C internal temperature, no calibration required
• Dynamic power estimates power capability during discharge
• Time-to-Empty and Time-to-Full estimation, predicts remaining capacity under theoretical load
• 14-pin TDFN-EP package
• Temperature rating range from -40°C to +85°C

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