Chip heats up when I plug in iphone(5S) to MintyBoost v3

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LateefB2
 
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Joined: Fri May 02, 2014 9:37 pm

Chip heats up when I plug in iphone(5S) to MintyBoost v3

Post by LateefB2 »

Hi ,,

i have a problem with my MintyBoost that i just arrived yesterday ..

After i plug in my iphone to the MintyBoost it start heating up then i
checked it , it was the 5V boost converter LT1302CN8-5 ..

see attached pics please and look if i did something

now if plug in my iphone it charge for less then mints then it says
"This accessory may not be supported " ! whats wrong ??

Image
Image

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adafruit_support_bill
 
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Re: Chip heats up when I plug in iphone(5S) to MintyBoost v3

Post by adafruit_support_bill »

Getting warm is perfectly normal. The chip has to work pretty hard to boost the voltage. You are using rechargeables which have a lower voltage to start, so it has to work even harder. Make sure that your batteries are fresh and fully charged.

https://learn.adafruit.com/minty-boost/f-dot-a-q
When I use the kit, the chip/batteries seems warm or hot...Is this OK?
It's normal for the chip and batteries to be warm or hot, especially when charging a device that is nearly drained. The chip should not get hot or very warm when nothing is plugged in.

The maximum temperature for the mintyboost chip is over 100 degrees C, that is hotter than boiling water. If you are worried, lick your finger (a little) and touch the tip of your finger to the top of the LT1302 chip. If you don't hear a sizzle (of the water boiling away), it's just fine.

However, if the batteries are so hot that its painful to touch, start to smoke, burn or melt or leak fluid....something is wrong! Unplug it immediately and remove the batteries if it is safe to do so.

But it's really hot and I'm worried!
Yes, this is normal. When the chip is working to charge your gadget, it's going to get hot. Normally you never get to see or touch the chips in your chargers so you don't realize how hot electronics get.

Really, it's normal for the Mintyboost to get hot!

If you're concerned, you can always do the finger test above. If it's too hot, it will sizzle, otherwise, it's OK.

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LateefB2
 
Posts: 3
Joined: Fri May 02, 2014 9:37 pm

Re: Chip heats up when I plug in iphone(5S) to MintyBoost v3

Post by LateefB2 »

Ok, i will try the Ultimate Lithium AA Batteries .

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