MAX17263LETD+

MAX17263LETD+ is a single/multi-cell fuel gauge with ModelGauge m5 EZ and integrated LED control. It is an ultra-low power fuel-gauge IC which implements the ModelGauge™ m5 algorithm. The IC monitors either a single-cell battery pack or a multiple-series cell battery pack with an external resistor divider. The IC drives 3 to 12 automatically-counted LEDs to indicate battery state-of-charge on a push-button press, or any other system status using I2C commands. The ModelGauge m5 EZ algorithm makes fuel gauge implementation easy by eliminating battery characterization requirements and simplifying host software interaction. 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. Typical applications are wireless speakers, medical devices, drones, power tools, E-bikes, headlamps and torches, battery backup, toys, home and building automation, sensors.

• No characterization 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
• Integrated LED control with push-button input, drives 3 to 12 LEDs, automatically counted
• Custom pattern LED control using I2C commands, accurate current sensing
• PCB metal sensing + temperature compensation, supports Li+ and variants including LiFePO4
• Thermistor or ±1°C internal temperature, time-to-empty and time-to-full estimation
• Dynamic power estimates power capability during discharge
• Predicts remaining capacity under theoretical load, no calibration required
• 14-TDFN-EP package, -40°C to +85°C temperature range

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party