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MAX1873EVKIT
Evaluation Kit for the MAX1873


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Description
FULL DATA SHEET (PDF, 79kB)
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The MAX1873 evaluation kit (EV kit) is a complete, fully assembled and tested PC board that is capable of supplying power to a system load while charging a lithium-ion (Li+) or nickel (Ni)-based battery pack. The EV kit is preset to limit the total source current and the maximum battery-charging current to 3A, and to charge 4-series Li+ cells up to 4.2V each. An analog output voltage proportional to the charging current also permits an ADC or microcontroller to monitor the charging current. The EV kit requires a power source with a minimum output of 18.5V.

The EV kit can be reconfigured to limit the total input current drawn from the power source, the maximum battery-charging current, and the charging cell voltage. The Li+ cell voltage can be set between 4.009V and 4.387V using standard 1% resistors. To charge Li+ battery packs with two or three cells, replace the IC on the EV kit board with one of the ICs listed on the Parts Selection Table.

Key Features   Applications/Uses
  • Input-Current Source Limiting
  • Charges 4 Lithium-Ion Batteries
  • Also Charges Ni-Based Batteries
  • Up to 28V Input
  • 300kHz PWM Operation
  • 16-Pin QSOP Package
  • Surface-Mount Construction
  • Fully Assembled and Tested

 
  • 2-, 3-, or 4-Cell Li+ Battery Pack Chargers
  • 6-, 9-, or 10-Cell Li+ Battery Pack Chargers
  • Desktop Cradle Chargers
  • Handheld Instruments (PDAs, Palmtops)
  • Notebook Computers
  • Portable Desktop Assistants (PDAs)
  • Portable Internet Tablets

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    Document Ref.: 19-2096; Rev 0; 2001-07-01
    This page last modified: 2007-06-29



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