Author Topic: Light Sensitive Design  (Read 1973 times)

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Offline rbarkochTopic starter

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Light Sensitive Design
« on: February 09, 2015, 12:08:33 am »
I just saw over at the Raspberry Pi forums that the new Raspberry Pi 2 may have some crashing issues when it's exposed to a flash from a camera. Is this a type of problem that's been seen before and worth spending extra effort to designing around when designing a circuit/PCB? I've never heard of anything like this before.

Forum link: http://www.raspberrypi.org/forums/viewtopic.php?f=28&t=99042
 

Offline edavid

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Re: Light Sensitive Design
« Reply #1 on: February 09, 2015, 03:06:52 am »
The actual problem chip is said to be an On Semi NCP6343 in CSP.

This link (found on Hackaday) explains the problem with CSPs: http://www.silabs.com/Support%20Documents/TechnicalDocs/AN0878.pdf
 

Offline SeanB

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Re: Light Sensitive Design
« Reply #2 on: February 09, 2015, 04:50:09 am »
Old problem, especially with diodes used for protection in high impedance circuits which would not work with the lid off.
 


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