TPS4H160-Q1: The test for EMC with Zener diode.

Kengo.Y

Part Number: TPS4H160-Q1

Hi team,

Could you give me your advice about the test for EMC with Zener diode?

My customer applied 10V/0.15MHz to OUTpin.

The STpin was detected when the Zener diode was put in all OUTpin.
If there is no diode, no error will be detected.
All of these have no input.

Why is the STpin detected?

Sincerely.
Kengo.

over 3 years ago

0 Kalin Burnside over 3 years ago

TI__Genius 13260 points

Hello Yoshikawa-san,

I am looking into this and am going to try to reproduce it. Please give me until EOD Tuesday.

Regards,

Kalin Burnside

0 Kalin Burnside over 3 years ago in reply to Kalin Burnside

TI__Genius 13260 points

Hello Yoshikawa-san,

Could you please provide a schematic around the TPS4H160 device? Could you also please give more details on the test you're running? Is it a standard test such as ISO 7637 or is it an application specific EMC test?

Regards,

Kalin Burnside

0 Kengo.Y over 3 years ago in reply to Kalin Burnside

Guru 10385 points

Hi Burnside-san,

Thank you for your reply.

This is a schematic that focuses on adding the diode.

This test is the customer's original test.
If you need more detail, I'll check my customer.
But I want to share more detail in private messages.
I'll request a friendship with you.

Sincerely.
Kengo.
.

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TPS4H160-Q1: The test for EMC with Zener diode.