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UCC25640X CB TEST REPORT

GEORGE LEE1
Prodigy 20 points
Other Parts Discussed in Thread: UCC256404

We are a power supply manufacturer.
We use UCC256404 to design products, and the product encountered a problem when applying for UL & TUV.
When we provide UCC25640X 62368-1 Certification on TI website for UL & TUV review,
Since Certification has no relevant instructions on the application of the Discharge circuit and the maximum value of X-CAP and HV resistance, UL & TUV cannot confirm whether we meet the UCC256404 application.

We can't just provide the description of UCC256404 Date sheet (page 33), but the application content of UCC256404 62368-1 when obtaining evidence.

So we need UCC25640X 62368-1 CB test report to prove that our application is in line with UCC25640X 62368-1 application circuit and X-CAP & HV resistor value.

Thank you

  • 0
    TI__Guru**** 308311 points
    Hi
    过不了安规测试？ 能否更加具体的说明下？ 另外提供电路看看，说明一下X电容等等。
  • 0 回复 Johnsin Tao
    Prodigy 20 points

    Johnsin您好，

    安规申请中。
    因UCC256404针对62368-1放电有单独认证。
    故我们电源放电测试部分我们是用UCC256404建议线路使用。
    因为是靠IC内建做放电测试，故我们需提供IC UCC256404 62368-1的证书及内容，来让UL和TUV审核单位确认我们应用上没脱离IC当出申请内容。

    我们X-CAP使用0.82uF，高压电组我们使用4.8K欧姆，我们相信是符合UCC25640X 62368-1内容。

    但我们网路上只能取的证书（证书内没有任何物件上限值）
    现在我们需提供UCC25640X 62368-1 CB TEST REPORT，这报告内有UCC25640X申请62368-1时的X-CAP和周边区域零件上限值。 让安全单位通过UL和TUV审核。


    ti ucc256404有个别62368-1放电认证，用意就是希望我们省掉放电电组降低空载损耗，这也是ucc256404的特色。
    我们透过ic代理商向ti要 CB test报告 ，但一直要不到任何资料。 请帮忙。

    谢谢您