MAX17330X22+ Standalone 1-Cell Charger, Fuel Gauge, and Protector

MAX17330X22+ Standalone 1-Cell Charger, Fuel Gauge, and Protector

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Maxim’s highly integrated charger, fuel gauge, protector, and battery internal self-discharge detection IC for 1-cell lithium-ion/polymer batteries

Maxim’s MAX17330 regulates charge voltage, current, and FET temperature with stand-alone charging supported by flexible configuration in nonvolatile memory. The IC supports the following applications: low-power charging including 1 mA to 500 mA directly from universal 5 V USB, high-power parallel packs (>1000 mA), and protection and charging control, pack or host side.

The MAX17330 ideal diode circuit supports a quick response to system transients and adapter removal with a low voltage drop across the CHG FET.

The IC uses the ModelGauge™ m5 EZ 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 accuracy. The IC automatically compensates for cell aging, temperature, and discharge rate while providing accurate state-of-charge (SOC) in milliampere-hours or percentage over a wide range of operating conditions.

The IC monitors the voltage, current, temperature, and state of the battery to protect against over/undervoltage, overcurrent, short-circuit, over/undertemperature and overcharge conditions, and internal self-discharge protection using external high-side N-FETs to ensure that the lithium-ion/polymer battery operates under safe conditions which prolong the life of the battery.

Features

  • Nonvolatile programmable stand-alone AccuCharge charger
    • Battery health and programmable safety/protection
    • Overvoltage/overcharge-current
    • Overcharge/discharge/short-circuit current
    • Over/under temperature
  • ModelGauge m5 EZ algorithm
    • Percent, capacity, time-to-empty/full, and age
    • Cycle+™ age forecast
  • Precision measurement without calibration
  • History logging and user data
  • Low quiescent current
  • SHA-256 Authentication to prevent cloning
  • 1.9 mm x 2.5 mm 15-bump 0.5 mm pitch WLP
  • Pushbutton wakeup/factory ship mode (0.5 μA)

Application Circuit

more information: https://www.maximintegrated.com/en/products/power/battery-management/MAX17330.html

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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