UCD9222+UCD7242

guoping Lee

Other Parts Discussed in Thread: TMS320C6678, UCD9222, UCD7242

Hi everyone,

I am using UCD9222+UCD7242 for power supper to TMS320C6678,the power output should be 1v and 0.9v . the configure is just like the UCD9222 configure project in 6678evm.but when I active the power output,the result is wrong.as I know ,the duty cycle should be 1/12.but the result is more than 20%,why?any advise will be nice,thank you .

over 13 years ago

0 Ashokn over 13 years ago

Intellectual 410 points

Hello Guoping Lee,

Where can i get the configuration file for the 6678evm

Thanks

Ashok

0 guoping Lee over 13 years ago in reply to Ashokn

Expert 1010 points

Hi Ashok

you can download the UCD9222 configuration from http://www.advantech.com/Support/TI-EVM/6678le_download3.aspx.

0 Ashokn over 13 years ago in reply to guoping Lee

Intellectual 410 points

Thank you Lee, by the way did you get the UCD9222 issues solvedÉ

Ashok

0 guoping Lee over 13 years ago in reply to Ashokn

Expert 1010 points

not yet .Do you have any idea?

0 Ashokn over 13 years ago in reply to guoping Lee

Intellectual 410 points

Hi Lee,

I am just going to use these ICs on my board which is still in design phase. So i donot have any results now.

Any way from the graphs, not only the duty cycle is strange, even the output voltage is swinging until 2V. Does these graphs depict correctly what you see on your board when you probe it (output voltage and duty cycle)?

Thanks

Ashok

Power management

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UCD9222+UCD7242