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  1. #1
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    Is series resistor to IC is required.

    Click image for larger version. 

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    Friend please refer the image.
    In this circuit I added an series resistor to the controller across VDD and MCLR pins...
    Is this good practice or their is no need to put an series resistor across VDD and MCLR..?

    •   Alt13th September 2017, 11:41

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  2. #2
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    Re: Is series resistor to IC is required.

    Hi,

    the second time you show a schematic with a series resistor in VCC or VDD line. Why?
    As before: It still is no good idea.

    An electrolytic capacitor is not suitable to stabilize VDD.

    If you want a delayed MCLR, then your circuit simply is wrong.

    Just reading the datasheet will give you the answer to both VDD and MCLR questions.

    Klaus



    •   Alt13th September 2017, 11:52

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  3. #3
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    Re: Is series resistor to IC is required.

    Hello venkates2218,
    I have to agree with KlausST 100%.
    C11 should be a non-polarized cap of 0.1uF placed as close to the IC itself when producing
    the PCB pattern.
    R2 should not be in-circuit at all, as with C10 and R1, as the MCLR needs +5V to operate
    correctly.
    Regards,
    Relayer



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