New Product Introduction

Maxim MAX1730x/31x 1-Cell modelgauge m5 EZ fuel gauge

Industry's Lowest IQ Stand-Alone Fuel Gauge with Protector

Maxim MAX1730x31x product image

Industry's Lowest IQ Stand-Alone Fuel Gauge with Protector.

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.

Key features

  • Battery Health + Programmable Safety / Protection
  • Nonvolatile Memory for Stand-Alone Operation
  • Low Quiescent Current
  • ModelGauge m5 EZ Algorithm


Additional features:

  • Battery Health + Programmable Safety/Protection
    • Overvoltage (Temperature Dependent) 
    • Overcharge Current 
    • Over/Undertemperature
    • 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: 24 µA Active, 18 µA Hibernate
    • FETs Disabled: 7 µA Ship, µA DeepShip, 0.1 µA UV-Shutdown
  • 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


  • 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
  • Handheld Radios
  • Home and Building Automation, Sensors
  • Smart Batteries


Available tools






Maxim MAX1730x/31x 1-cell m5 EZ fuel gauge | EBV Elektronik

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Related parts

Buy online and see datasheets:

  • MAX17301X+T
  • MAX17301XEVKIT#
  • MAX17302X+T
  • MAX17302XEVKIT#

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