• ADuM3471

    I will use the ADuM3471 in a new design. Can I use the output VOD to monitoring
    the voltage VISO? If there is a problem with the transformer then I have no
    VISO (VDD2 unpowered), what is the state of VOD?

     

    If VDD2 is 0V because VISO is 0V, then…

  • RE: ADuM3471, light load question.

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
  • 关于ADuM3471在CN0292中的VDD2输入/输出配置

    在CN0292中,ADuM3471的pin18(VDD2)在原理图中默认连接到了外部LDO的输出端,但是在R13(0R)连到外部+15v的情况下,ADuM3471的VDD2此时应该是5VLDO的输出,而不是输入——至少相关的文档没有提到该如何选择是使用外部的LDO输入5v电压,还是使用ADuM3471的内部LDO在pin18上的输出5v电压。

    请ADI专家解疑一下。

    另外,由于-V_ISO是没有稳压调整的,不太清楚在后边的LDO稳压到5v的情况下会怎样的一个稳定状况。

    多谢!

  • ADuM3471: using primary power 3.3V AND 5V ?

    Hello,

    we use ADuM3471 in a isolating design to interface a DAC to the CPU and generate the needed 12V for the analogue output circuit.

    Our implementation is like the reference design (datasheet, Fig.38).

    VDD1 ( 5V ) is connected to ADuM (VDDA) and…

  • Question for ref. design of ADuM3471

    Dear Sir/Madam,

    Our customer asked as following question.

    Why does your table-18 of datasheet ADuM3471 show a coil JA4631-Bl (1:2 turns ratio) for Fig-38?

    We will make VDD1=5V and Viso=15V.

    If so, we should choice a coil JA4650-Bl(1:3 turns ratio…

  • RE: PWB design data for ADuM3471 and ADuM1300 EVALboards

    Kevin: I sent the files to your arrow email account.

    Regards, Brian

  • ADuM3471 Design Support package

    Hi,

    I am working on this CftL project which includes ADuM3471 as my isolator.  Due to time constraints, i would like to ask for your help if you can provide me a design support for the eval board EVAL-ADuM3471EBZ.

    i would like to review the schematic…

  • how to use the adum3471 in dual supply mode

    The Eval pcb datasheet advises the use of a 1:5 ratio transformer when designing dual output (+15/-15V) outputs.

    With a 5V input, The transformer generates aprx 25V VPk in Open loop mode with a 5V input.

    When i follwed the instructions in the eval unit…

  • Generating 3 Voltages with ADuM347x

    Is it possible to draw 5(10)mA on VDD2 (5V)?
    What is the max. current that can be drawn on VDD2?

     

    Per the datasheet, table 4, the max current on VDD2 is 50mA, but this total
    includes the internal current to supply the side 2 channels at the data…