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WEBENCH® Tools/LM5002: Will WEBENCH support negative input/positive output converters?

Part Number: LM5002

Tool/software: WEBENCH® Design Tools

I have selected the LM5002 for a telecom power conversion design.  The input will be -8V to -48V and the output will be +5.0V, 100mA.  I am using a current mirror circuit to provide the voltage feedback signal to the LM5002.  I have attempted to use WEBENCH to provide a design that I can cross check with my own.  Either I am incorrectly entering the input parameters, or the WEBENCH tool will not do this type of design.  If anyone else has been successful in using WEBENCH for a negative input/positive output converter, I'd like to hear how you succeeded.

Thanks,

Frank

  • Hi Frank,

    LM5002 Webench model doesn't support the negative input and positive output design. You can download LM5002 TINA model and simulate it using TINA.

    Regards,
    Zack

    Regards,
    Zack Liu
    Boost Converter Solution

  • In reply to Zack Liu:

    Zack,

    Thanks for the reply.  I suspected that WEBENCH lacked the described capability.

    Frank

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