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IC data for Ipod Mini

Hello Chieh, I saw that you have opened your Ipod mini. Could yhou please tell me what is the part number (whatever on top of the IC for IC11 (about 1 inch from bottom left as seen from the front of the Ipod) This ic is about 5mm square and have 16 pins, 4 on each sides. Somehow mine was toasted and I need to repair

Sat, 14 May 2005 01:25:16 -0700

Ok, I'll have to take my iPod apart to get you that information. From the picture below, would you circle the IC you need information for with a graphics software? That way I can be sure to get you the right one.

So how did you burn it out?

Attached Image:

iPod mini front.jpg

Chieh Cheng
Sat, 14 May 2005 09:38:51 -0700

Here it is, I found out this morning that the chip should be LTC4055 USB Power Controller and Liion Charger.

Attached Image:


Sun, 15 May 2005 21:15:31 -0700

Here is the photo of it in detail.. Toasted :(

I reckond the cable were shorted out while charging in my car. It was a long trip (6 hours) and the Ipod suddently died, and when I opened it this is what I found.

Attached Image:

ltc4055small .jpg

Sun, 15 May 2005 21:19:24 -0700


It looks like the surrounding components are also fried. Are you going to be able to replace all those parts?

Chieh Cheng
Mon, 16 May 2005 13:42:28 -0700

I am a prototype contract designer/maker I made prototype for ppl with ideas but cannot realize them. I do work with SMD materials often and I have the equipment , so I would not have much trouble in replacing the chip.

The surrounding materials are the standard 0402 size capacitors and resistors. They are not fried, even if they are, I have them in my stock. The one I dont have is the chip. It is just my bad photography that show them as black parts :)

Although I think I know what the part number is, I cannot be sure. Based on the chip size, pin profile and rough tracing of the PCB, I think it is the LTC4055.

Did you open your Ipod? could you please either take a close up photo of the chip for me or if you could just write out the chip number for me please?

Mon, 16 May 2005 18:57:38 -0700

I see. I had the impression that you already know for sure what the chip is. I will take my iPod mini apart tonight and get you a picture and the chip designation.

Chieh Cheng
Mon, 16 May 2005 21:03:58 -0700

Thanks Chieh.

Tue, 17 May 2005 16:42:36 -0700

Parmin, I shot all of the IC's on the board . . . hope they help.

Attached Image:

Crw_9146_rt8 1.jpg

Chieh Cheng
Tue, 17 May 2005 23:40:54 -0700

Attached Image:

Crw_9147_rt8 1.jpg

Chieh Cheng
Tue, 17 May 2005 23:41:55 -0700

This shot is taken with the iPod mini right-side up . . .

Attached Image:

Crw_9149_rt8 1.jpg

Chieh Cheng
Tue, 17 May 2005 23:43:25 -0700

Attached Image:

Crw_9148_rt8 1.jpg

Chieh Cheng
Tue, 17 May 2005 23:44:13 -0700

Attached Image:

Crw_9150_rt8 1.jpg

Chieh Cheng
Tue, 17 May 2005 23:44:59 -0700

Thanks Chieh!!!

It is an LTc4055 chip afterall :)
Great.. now I could hunt for this chip.

Once again Thanks for your help!!
Anything I could do in reply please contact me :) just remove panties before you email :) Spams are really annoying.

[email protected]

Best regards

Wed, 18 May 2005 16:17:46 -0700

Hello Chieh, why my Ipod hot, battery full but I not use battery empty?

Tue, 11 Apr 2006 03:17:17 -0700

did you get 4055

i want one also

Tue, 03 Apr 2007 03:07:14 -0700


Tue, 14 Aug 2007 18:54:21 +0000

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