Data Sheet Rev. 3
CN | JP 1 View All

Overview

Features and Benefits

  • Charges One to Four Li-Ion Cells
  • Low Heat/High Efficiency
  • 300kHz PWM Operation
  • 0.75% Overall Accuracy over Temperature
  • 6V to 24V Input Voltage Range
  • Proven PC Board Layout
  • Fully Assembled and Tested

Product Details

The MAX745 evaluation kit (EV kit) is an assembled and tested PC board that implements a step-down, switching power supply designed for charging lithium-ion (Li- Ion) batteries. The output voltage can be set for one to four cells. The cell voltage can be set between 4.0V and 4.4V, with 0.75% accuracy, using standard 1% resistors. Two LEDs indicate the charging status.

The MAX745 should be used to charge only Li-Ion battery packs. To charge other types of batteries, use the MAX1648 or the MAX712/MAX713. To charge SMBus™ smart-battery packs, use the MAX1645/MAX1647/ MAX1667.

Applications

  • Cell Phones
  • Desktop Cradle Chargers
  • Handheld Instruments (PDAs, Palmtops)
  • Li+ Battery Packs
  • Notebook Computers

Documentation & Resources

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  • Data Sheet (1)
  • Video (1)
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