TPS1210-Q1: EMC INTERFERENCE

Ryker She

Part Number: TPS1210-Q1

Tool/software:

Hi expert,

My customer has found the Fault signal of TPS1210-Q1 would be triggered when doing EMC test, could you help to give some advises to enhance the anti-interference capability of TPS1210-Q1 and avoid triggering short-circuit fault, charge pump UVLO, input UVLO and during SCP comparator diagnosis in EMC test? Thanks.

Best Regards,

Ryker

7 months ago

0 Sarah Raines 7 months ago

TI__Expert 8670 points

Hello Ryker,

Which customer are you working with on this?

Which EMC test are you performing and seeing issues with?

Thank you,

Sarah

0 Ryker She 7 months ago in reply to Sarah Raines

TI__Expert 4410 points

Hi Sarah,

My customer is CosMx. They are doing RI test for their own board and found the Fault signal of TPS1210-Q1 would be triggered.

Best Regards,

Ryker

0 Sarah Raines 7 months ago in reply to Ryker She

TI__Expert 8670 points

Hi Ryker,

I see.

Lets start with a schematic review
Can you please share more information about what frequencies you are seeing an issue at?
Do you have any scope shots to diagnosis what the FLT is indicating ?
What are your loading conditions?

Thank you,

Sarah

Power management

Power management forum

TPS1210-Q1: EMC INTERFERENCE