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AMC1200: How to verify the surge capability

Vincent Chen64988
Expert 4480 points
Part Number: AMC1200
Other Parts Discussed in Thread: AMC1301, ISO7741

Hi Team,

My customer is surveying AMC1200 and the component engineer has a question. In the datasheet, it shows the capability of part's surge immunity(IEC61000-4-5) can be up to +-6KV and he has to verify it's performance. He has no idea how to verify it on device but not on system and think TI should has document to test this device's performance. So, do team have such materials can be shared to my customer?

Thanks a lot.

Vincent Chen

  • 0
    TI__Guru**** 181021 points
    Hi Vincent,

    The document to verify the AMC1200 actually is the IEC61000-4-5 which defines the waveforms and voltage levels applied to the AMC1200 device. There are specialized testers available which can generate the waveforms used in the testing - Teseq/Ametec makes a tester, EMC Partners makes a tester, there are others as well.
  • 0 in reply to Tom Hendrick
    TI__Expert 4480 points
    Hi Tom,

    Thanks a lot for prompt response.
    I apologize I didn't describe the question well. We know IEC61000-4-5 is a system level test item, end equipment will add R, C, TVS ... to achieve this test criteria. Due to AMC1200 datasheet shows it can pass IEC61000-4-5 without any notice of test conditions that cause customer think this device can withstand surge via pins directly. So, I want to confirm with you is customer's thought correct? If not, how we guarantee it and what is the test condition? Is there any circuit can be referenced?

    Best Regards,
    Vincent Chen
  • 0 in reply to Vincent Chen64988
    TI__Guru**** 181021 points

    Hi Vincent,

    Page 12, section 7.3.2 provides the test conditions under which every production device is tested.  The 1.2/50 and 8/20 wave-forms are described in the IEC document.  Each DUT is placed in a socket and tested directly across the isolation barrier via the pins.  You can also review this document if you like - it's related to the reinforced isolation of the AMC1301 so the voltage levels are higher, but the test method is the same with the AMC1200:

  • 0 in reply to Tom Hendrick
    TI__Expert 4480 points

    Hi Tom,

    Thanks very much for providing the answer. I would like to ask another question, why only AMC1200 shows it is compliant with IEC61000-4-5 but others don't(like ISO7741, it's test method is IEC60065). 

    Best Regards,

    Vincent

  • 0 in reply to Vincent Chen64988
    TI__Guru**** 181021 points
    Hi Vincent,

    The IEC 60065 is an end product standard for Audio, Video and other similar equipment. I do not know specifically why that document was called out in the ISO7741 datasheet, but the reference to the 1.2/50uS waveform would relate back to the IEC 61000 document. It's the same test.
  • 0 in reply to Tom Hendrick
    TI__Expert 4480 points
    Hi Tom,

    Got it, many thanks for your support.

    Best Regards,
    Vincent Chen