Need help identifying a simple circuit - Page 2 - Electronic Circuits Projects Diagrams Free

audioguru · 3rd September 2008, 04:57 PM

The IC protects itself from getting too hot but it doesn't stop the battery from catching on fire.

Pommie · 3rd September 2008, 05:17 PM

The battery is millimeters away from the chip and will shut down long before the battery catches fire.

Mike.

Ubergeek63 · 3rd September 2008, 06:31 PM

Quote:

Originally Posted by JohnnyR

Wow, what a find!
Indeed that seems to be it. It's even got thermal protection

Thanks Pommie!

That is no surprise. Lithiums are so picky they are as likely to become blow torches as they are to charge.

Dan

Sceadwian · 4th September 2008, 02:41 AM

Lithium packs aren't really that picky, you really have to over charge them for a long period of time with a large over voltage potential to get them to go up. Though not ideal, the thermal cutoff of the IC will at least keep gross overchanging from occuring, then again I'm not sure if that's possible from a 5 volt power supply.

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3rd September 2008, 04:57 PM	(permalink)
audioguru	The IC protects itself from getting too hot but it doesn't stop the battery from catching on fire. __________________ Uncle $crooge

3rd September 2008, 05:17 PM	(permalink)
Pommie	The battery is millimeters away from the chip and will shut down long before the battery catches fire. Mike.

4th September 2008, 02:41 AM	(permalink)
Sceadwian	Lithium packs aren't really that picky, you really have to over charge them for a long period of time with a large over voltage potential to get them to go up. Though not ideal, the thermal cutoff of the IC will at least keep gross overchanging from occuring, then again I'm not sure if that's possible from a 5 volt power supply. __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."