You are here

CY8C5287AXI LP095 broken for serveral time | Cypress Semiconductor

CY8C5287AXI LP095 broken for serveral time

Summary: 7 Replies, Latest post by hli on 23 Nov 2016 06:34 AM PST
Verified Answers: 1
Last post
Log in to post new comments.
awais khan's picture
User
4 posts

CY8C5287AXI  LP095 Broken while operating for more than 3 times, I try to find the reasons for the chip burning. I'm using the Chip with servo motors. Once it burns EEPROM, I have to check it with the oscilloscope if there is a glitch on the circuit, I found there is a small glitch on the circuit, It can be the reason for the chip break down?

 

user_1377889's picture
User
9596 posts

A voltage of 11V on any input pin will successfully blow the PSoC chip!

 

Bob

awais khan's picture
User
4 posts

There is a voltage regulator for the circuit. The glitch is between I2C and servo motors. 

hli
user_78878863's picture
User
2575 posts

If the I2C lines with the 11V on it are connected to the PSoC, then this will kill the PSoC. Bob said "on any input pin" - this problem is not limited to the power inputs.

awais khan's picture
User
4 posts

we have 5v for I2C not 11v. 

hli
user_78878863's picture
User
2575 posts

Well, then what are the traces on the scope in your photo show? The assumption until now is that these are the I2C lines. If they are, then even when they are nominally 5V, 11V there will kill your PSoC. If these aren't I2C lines, what are they?

user_1377889's picture
User
9596 posts

The glitch shows a 11V p-p. Did you see a soft glowing of the pins?

 

Bob

awais khan's picture
User
4 posts

I still didn't understand anything but will find some other ways of it. 

 

 

Log in to post new comments.