Analog Devices MAX17303 Product Info

• Battery Health + Programmable Safety/Protection
  • Overvoltage (Temperature Dependent)
  • Overcharge Current 
  • Over/Undertemperature
  • Battery Internal Self-Discharge Detection (MAX17300/10 Only)
  • Ideal Diode Discharge During Charge Fault
  • Charging Prescriptions (JEITA)
  • Zero-Volt Charging Option
  • Undervoltage + SmartEmpty
  • Overdischarge/Short-Circuit 
• Nonvolatile Memory for Stand-Alone Operation
  • ​History Logging, User Data (122 Bytes)
• Low Quiescent Current
  • FETs Enabled: 24µA Active, 18µA Hibernate
  • FETs Disabled: 5µA Ship, 0.5µA/0.02µA DeepShip
• Parallel Battery Management (MAX17300/10 Only)
• Pushbutton Wakeup—Eliminates System Consumption Until Button Press
• ModelGauge m5 EZ Algorithm
  • Percent, Capacity,Time-to-Empty/Full, Age
  • Cycle+™ Age Forecast
• Dynamic Power—Estimates Power Capability
• Precision Measurement Without Calibration
  • ​Current, Voltage, Power, Time, Cycles
  • Die Temperature​/Thermistor

The MAX17300–MAX17303/MAX17310–MAX17313 is a 24μA I_Q stand-alone pack-side fuel gauge IC with protector 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 and overcharge conditions protection 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-of-charge (SOC) in milliampere-hours (mAh) or percentage (%) over a wide range of operating conditions.

Dynamic power functionality provides the instantaneous maximum battery output power which can be delivered to the system without violating the minimum system input voltage.

A Maxim 1-Wire^® or 2-wire I²C interface provides access to data and control registers. The IC is available in a lead-free, 3mm x 3mm 14-pin TDFN and 1.7mm x 2.5mm 15-bump 0.5mm pitch WLP packages.

Applications

• Smartphones, Tablets, and 2-in-1 Laptops
• Smartwatches and Wearables
• Medical Devices, Health and Fitness Monitors
• Digital Still, Video, and Action Cameras
• Handheld Computers and Terminals