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SN6505B: customer need SN6505 design considerations

Part Number: SN6505B

Dear TI support teams.

customer's product designed by SN6505BDBVT had MP three years. but current batchs occur bad issue, customer had Done FA, but TI said its EOS issue.

so customer need to know designed consideration and some of test report such as failure report;

attachment is customer test report for your reference.

thank for your support.SN6505芯片损坏问题信息.pptxTI沟通SN6505BDBVT 测试-20220712.pdf

  • Hi Cickey,

    Thanks for reaching out and for sharing customer test reports. Do you happen to have the test reports in English?

    One of the key factors to consider while designing SN6505 based solution is the transformer design. The transformer needs to meet the minimum Vxt product (shown below) and the minimum turns-ratio (shown below).

    Section 9.2.2 of SN6505 datasheet describes the detailed design procedure that includes selection of LDO, diodes and transformer. It also lists many example transformers that can be used with SN6505.

    Customer can also use a software tool from SN6505 product page to design their transformer. I have provided below the direct link to this tool. Thanks.

    https://www.ti.com/product/SN6505B#software-development


    Regards,
    Koteshwar Rao