Lithium Ion Help!


Old 07-01-08, 12:32 AM
Thread Starter
Join Date: Jul 2008
Posts: 1
Received 0 Votes on 0 Posts
Lithium Ion Help!


I am having some problems with a project of mine. I have a space that is 16mm by 50mm by 4mm (LxWxH) that I need to fit a charging circuit in. I am having problems finding a charging circuit for 2 3.7v 400mah li-ion cells in series. they by no means need to be high current, just enough to charge. This Charger has to fit in the above space. My maximum input voltage woulf be about 5.5v.
I have been looking at this one but I can't tell if I need any other components for the actual circuit.

Oh, and everything is in DC by the way.

Please help me!
Sponsored Links
Old 07-01-08, 06:24 AM
waterwelldude's Avatar
Join Date: Jun 2008
Location: S.E. Texas
Posts: 1,042
Received 0 Votes on 0 Posts
These pepole should be able to help you with your project.
Old 07-01-08, 07:42 AM
Join Date: Jun 2008
Location: Maryland
Posts: 298
Received 0 Votes on 0 Posts
Also the online version of "Electronic Design" has a circuit archive.
At charge rates of C/20 or C/100 it shouldn't be difficult, but I only worked with Nicads.
You need to find charging protocols for this type of chemistry.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: