MAX17302

EVALUATION KIT AVAILABLE Click here to ask about the production status of specific part numbers. MAX17300-MAX17303/ 1-Cell ModelGauge m5 EZ Fuel Gauge with MAX17310-MAX17313 Protector, Internal Self-Discharge Detection and SHA-256 Authentication General Description The MAX17300-MAX17303/ MAX17310-MAX17313 is a 24μA IQ stand-alone pack-side fuel gauge IC with protector, optional battery internal self-discharge detection and optional SHA-256 authentication for 1-cell lithium-ion/polymer batteries. The IC monitors the voltage, current, temperature, and state of the battery to provide against over/undervoltage, overcurrent, short-circuit, over/undertemperature, overcharge, and internal self-discharge conditions using external high-side N-FETs, and provides charging prescription to ensure that the lithium-ion/polymer battery operates under safe conditions prolonging the life of the battery. To prevent battery pack cloning, the IC integrates SHA-256 authentication with a 160-bit secret key. Each IC incorporates a unique 64-bit ID. The fuel gauge uses ModelGauge m5 algorithm that combines the short-term accuracy and linearity of a coulomb counter with the long-term stability of a voltage-based fuel gauge to provide industry-leading fuel-gauge accuracy. The IC automatically compensates for cell aging, temperature, and discharge rate, and provides accurate state-ofcharge (SOC) in milliampere-hours (mAh) or percentage (%) over a wide range of operating conditions. Dynamic power ...