Dedmon has had awesome success just modding already 5V external power packs for iPods. They are cheap, and include free USB charging.
Suggestions for 5v batteries and cases
- Thread starter kardjunkie
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Sorry about the bad pic. Taken from an iphone. The parts are at home so I could not take another.
I appreciate it, cybervex - I'm gonna have to go the radio shack route, looks like - TI doesn't seem to like APO addresses
Thanks for the TI site!!! Free is great.
Have you tried doing this more than once.
Maybe I'll have to have my son send for some too.
Have you tried doing this more than once.
Maybe I'll have to have my son send for some too.
Would you attach that regulator to some kind of heatsink to keep the plastic box from melting? I'm just curious as to how hot it gets and if a nicostick type arrangement would survive.
I have not had it get hot enogh to melt the case but I did make a heatsink out of some brass shim stock. I shaped the shim into a coil with a flat area to touch the metal side of the regulator.
From the literature, this one appears to have a 7v minimum input - can anyone verify this, and does it affect operation? IOW, does it still continue to work AFTER the input drops below 7v?
Could you be a bit more specific on which literature you are referring to? Voltage input is stated at 5.45 to 9 volts
Digi-Key - UCC283TDKTTT-5G3-ND (Texas Instruments - UCC283TDKTTT-5G3)
The actual datasheet from TI states on page 3 "VIN=5.15 V to 9 V"
http://focus.ti.com/lit/ds/symlink/ucc383-5.pdf
Cheers
The one I was speaking of was from sparkfun, and linked in my post. Their literature shows a Vmin of 7v, max of 25v.
μA7805C 7 25
With a quantity available of zero, Digikey isn't helping me any more than TI is with not shipping to APO/FPO. Does anyone ELSE carry it?
μA7805C 7 25
With a quantity available of zero, Digikey isn't helping me any more than TI is with not shipping to APO/FPO. Does anyone ELSE carry it?
I sent you a PM, i can spare a few. Noticed after i sent PM you weren't in the states. Let me know how to send them and i will.
I completely misread your post...sorry
If KardJunkie is unable to send you one PM me and I will try to send one. I have 4 more with no immediate intention on build another 5v mod.
Practically all electronic part stores will carry a 7805 5V regulator. They are very, very common. Try jameco.com, allelectronics.com, sparkfun.com. I've gotten 7805's from each of them. They do run hot though, so some heatsinks are advised.
This is my newest unit, running a 510 atomizer with a Texas Instruments 5v regulator. It won't get hot enough to damage the box, but the batteries do get slightly warm with frequent use from being in the enclosed space w/ the regulator so I try not to chong on it nonstop. The regulators are so nice and small, you can fit them in almost anywhere.
Major big thanks to Shreck for the links and advice with the regulator on this one.
Major big thanks to Shreck for the links and advice with the regulator on this one.
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kardjunkie, cybervex - thank you very much - I really appreciate it!
sio2 - since you've used the 7805, can you tell me whether it cuts off below 7v or not?
sio2 - since you've used the 7805, can you tell me whether it cuts off below 7v or not?
I used 3.7v in mine. I did not want to buy an additional charger for the 3v batteries
A question for the pros...
I'd like to build a unit for use in my truck, would this 7805 regulator be what I'd need to reduce 12vdc to 5vdc?
And would there be any fire danger, or possible electrical system consequences?
Thanks, I've got the mod bug bad...
Best Regards
fo
I'd like to build a unit for use in my truck, would this 7805 regulator be what I'd need to reduce 12vdc to 5vdc?
And would there be any fire danger, or possible electrical system consequences?
Thanks, I've got the mod bug bad...
Best Regards
fo
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