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MAX17320 - 2S-4S ModelGauge m5 EZ Fuel Gauge

General Description

The MAX17320 is a 38μA IQ stand-alone pack-side fuel gauge IC with protector, battery internal self-discharge detection, and optional SHA-256 authentication for 2 to 4 series lithium-ion/polymer batteries.

Key Features

  • Battery Health + Programmable Safety/Protection.
  • Overvoltage (Temperature Dependent).
  • Overcharge/Overdischarge/Short-Circuit Current.
  • Over/Undertemperature.
  • Undervoltage + SmartEmpty.
  • Battery Internal Self-Discharge Detection.
  • Ideal Diode Discharge During Charge Fault.
  • Charging Prescriptions (JEITA).
  • Prequal Charge Control with CHG FET.
  • ModelGauge m5 EZ Algorithm.
  • Percent, Capacity, Time-to-Empty/Full, Ag.

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Full PDF Text Transcription (Reference)

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EVALUATION KIT AVAILABLE MAX17320 2S-4S ModelGauge m5 EZ Fuel Gauge with Protector, Internal Self-Discharge Detection, and SHA-256 Authentication General Description The MAX17320 is a 38μA IQ stand-alone pack-side fuel gauge IC with protector, battery internal self-discharge detection, and optional SHA-256 authentication for 2 to 4 series lithium-ion/polymer batteries. The IC monitors the voltage, current, temperature and state of the battery to provide protection 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 battery operates under safe conditions, thereby prolonging the life of the battery.