TPS92691-Q1: CISPR25 test result

Vincent Chen64988

Part Number: TPS92691-Q1
Other Parts Discussed in Thread: TPS92691

Hi Team,

My customer is surveying TPS92691-Q1 and found there is a EMI plot of conducted EMI based on CISPR 25 showed in user guide. Customer wants to know if there are test report of RE/CE of CISPR25 (0.15~1000MHz) for TPS92691 SEPIC LED driver evaluation board can be shared with them?

Thanks very much.

Vincent Chen

over 8 years ago

0 Clinton Jensen over 8 years ago

TI__Mastermind 25500 points

Hello Vincent,

There is a scan in the user's guide for 150kHz to 30MHz. I will check with the systems engineer and see if he did a scan any further out and let you know.

Regards,

Clint

0 Clinton Jensen over 8 years ago

TI__Mastermind 25500 points

Hello Vincent,

I checked on this and the answer is that it was only taken to 30MHz because it doesn't have common mode filtering (CM choke, ferrite beads, etc...) so it would likely not pass as is. This isn't totally unusual since the CM depends so much on the load. So we don't have that information saved at the time.

Regards,

Clint

0 Vincent Chen64988 over 8 years ago in reply to Clinton Jensen

TI__Expert 4480 points

Hi Clint,

Understood, thanks very much for your prompt response. I have informed customer and will keep you updated if any feedback from customer.

Best Regards,
Vincent Chen

0 Vincent Chen64988 over 8 years ago in reply to Vincent Chen64988

TI__Expert 4480 points

Hi Clint,

Do you have materials that related to EMI/EMC design guide(especially for CISPR25) can be shared with customer?

Thanks very much.
Vincent Chen

0 Clinton Jensen over 8 years ago in reply to Vincent Chen64988

TI__Mastermind 25500 points

Hello Vincent,

Do you mean how to design for EMI/EMC? If so I believe we have app notes on the web for this.

Or do you mean the actual CISPR 25 specification? If so then no, I just have all of the levels for conducted set up on our spectrum analyzer we use to take the shots for user's guides.

Regards,

Clint

Power management

Power management forum

TPS92691-Q1: CISPR25 test result