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LM5113

Part Number: LM5113

 The CMTI ability of LM5113 is unkown in datasheet.

In some cases, there is not an isolator between the buck/LLC controller and the LM5113 driver, but there is an isolator there in cases where an microcontroller, such as PIC microcontrollers, is used.

I'm not sure whether there is a need to place an isolator between the microcontroller and the LM5113! Can anyone give a reasonalbe explanation!

  • Hi Bizheng,

    the CMTI capability of  the LM5113 is 50 V/ns, and is described under the recommended operating conditions table under "HS Slew rate" (see picture below).

    As long at you don't exceed those levels, you will not need any isolator between the controller and the LM5113.

    If this answer your question, please click the verify answer button.

    Best regards,

    Alberto

  • In reply to Alberto Doronzo:

    Thanks very much!

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