Comments on: LiPoly charging with MCP73833

By: Alex (not the wirter)

Alex (not the wirter) — Sun, 19 Jun 2011 21:21:05 +0000

Hello I am trying to find where i can buy this chip? do you remember where you got yours

By: Alex (not the wirter)

Alex (not the wirter) — Sun, 19 Jun 2011 16:10:42 +0000

Yes after i posted this comment i found the graph that states what resistors.

By: Alex

Alex — Sun, 19 Jun 2011 12:32:54 +0000

The resistor is used to adapt the charging current. Take a look at the datasheet on how to calculate it.

By: Alex (not the wirter)

Alex (not the wirter) — Sun, 19 Jun 2011 00:32:45 +0000

Hi i was wondering what changing the resistor does to the Mah output. Please respond asap.

By: Cory

Cory — Fri, 28 Jan 2011 07:32:56 +0000

Great project!

I’m toying with the idea of trying a few of these in paralllel to charge at higher amperages, but I’m very new to electronics. Any words of warning or advice about wether this would work?

By: Alex

Alex — Wed, 19 Jan 2011 07:17:02 +0000

Yes, it is.

By: Rocko

Rocko — Sun, 16 Jan 2011 19:47:32 +0000

Alex,
This looks great. Is this the same as what you have available at batchpcb.com?

Thanks,
-Rocko

By: Alex

Alex — Sat, 25 Dec 2010 07:06:28 +0000

You should use a 10k NTC thermistor for this pin. If you don’t have one, take a 10k resistor. For more details take a look at the datasheet.
Cheers,
Alex

By: Bruno

Bruno — Sat, 25 Dec 2010 05:59:59 +0000

Hey Alex, is this 10K (R3) pulling THERM to GND obligatory ? What happen if i leave it floating ? Thank’s

By: Chris

Chris — Sun, 31 Oct 2010 18:33:16 +0000

What Version of the MCP73833 Did you Use? There seems to be quite a few options to chose from (ie MCP73833-AMI/UN-ND)