4
2011-07-08
SparkFun
<p>
<b>Description:</b> If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The USB LiPo Charger is a basic charging circuit that allows you to charge 3.7V LiPo cells at a rate of 500mA or 100mA per hour. It is designed to charge single-cell Li-Ion or Li-Polymer batteries. Check the datasheet below to see if it will work with your battery.</p>
<p>
The board incorporates a charging circuit, status LED, selectable solder jumper for 500mA or 100mA charging current, external LED footprint, USB input, mounting holes, and various holes for your own connectors. We include a single JST-tpye connector which connects directly to our LiPo batteries. The connector comes unsoldered, so you can use it or not.</p>
<p>
There is also a 'SYS OUT' which allows you to connect the charging circuit directly to your project so you don't need to disconnect the charger each time you want to use it.</p>
<p>
<b>Documents:</b></p>
<ul>
<li>
<a href="http://www.sparkfun.com/datasheets/Prototyping/Batteries/LiPo-USB-Charger-v21(2).pdf" target="_blank">Schematic</a></li>
<li>
<a href="http://www.sparkfun.com/datasheets/Prototyping/Batteries/LiPo-USB-Charger-v21(2).zip">Eagle Files</a></li>
<li>
<a href="http://www.sparkfun.com/datasheets/Prototyping/Batteries/MCP73831T.pdf" target="_blank">Datasheet</a> (MCP73831T)</li>
</ul>
<p>
<strong>Replaces:</strong> <a href="http://www.sparkfun.com/products/726" target="_blank">PRT-00726</a></p>
USB LiPoly Charger
http://www.sparkfun.com/products/10161
Charger
LiPo
LiPoly
Battery
Charger
GND
VBAT
GND
VBAT