EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX17263 Single/Multi-Cell Fuel Gauge with ModelGauge
m5 EZ and Integrated LED Control General Description Benefits and Features The MAX17263 is an ultra-low power fuel-gauge IC which
implements the Maxim ModelGauge™ m5 algorithm. The
IC monitors either a single cell battery pack or 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. ● ModelGauge m5 EZ
• 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 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. ● Monitors Single-Cell or Multiple-Cell Battery Packs
● Integrated LED Control with Push-Button Input
• Drives 3 to 12 LEDs, Automatically Counted 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 industry-leading fuel-gauge accuracy. The IC automatically compensates for cell-aging, temperature, and discharge rate, and provides accurate stateof-charge (SOC) in percentage (%) and remaining capacity in milliampere-hours (mAh) over a wide range of operating conditions. As the battery approaches the critical region near empty, the algorithm invokes a special correction mechanism that eliminates any error. The IC provides
accurate estimation of time-to-empty and time-to-full and
provides three methods for reporting the age of the battery: reduction in capacity, increase in battery resistance,
and cycle odometer.
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. A 2-wire I2C interface provides access
to data and control registers. The IC is available in a 3mm …