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Original question:

CC2564MODA: Declaration of maximum capacitance and inductance, including tolerances and voltage enhancement circuits.

CC3120MOD: Declaration of maximum capacitance and inductance, including tolerances and voltage enhancement circuits.

Steve Chancey
Prodigy 175 points
Part Number: CC3120MOD
Other Parts Discussed in Thread: CC2564C, CC3120

In support of IEC 60079-11, this device's maximum capacitance and inductance, including tolerances and any voltage enhancement circuits need to be disclosed.  Who or which group can I contact to further discuss obtaining a declaration of such?  A Certified Body contact can be provided for disclosure purposes if needed.  Thanks!

  • 0
    TI__Mastermind 34330 points

    Hi Steve,

    I will look into this and get back to you.

    BR,

    Seong

  • 0
    TI__Mastermind 34330 points

    Steve,

    I will close your other thread as it is the same request.

    We do not have this declaration you are looking for. Can you please clarify if you are looking for all the capacitance added up per our BOM (same for Inductor), or just the maximum value of inductance/capacitance per our BOM. 

    BR,

    Seong

  • 0 in reply to Seong Kim
    Prodigy 175 points

    Hi, the clarification is the lumped total capacitance and inductance, including tolerances, respectively.  For the voltage enhancing circuits, the issue is the possibility of generating higher voltages under fault.  Charge pump circuits are less of a concern than inductive switchers and knowing the type, if used, is needed.  A statement of possible voltage levels generated under fault would be ideal.

  • 0 in reply to Steve Chancey
    Prodigy 175 points

    Hi.  I have an update on my request for a declaration.  Further review of IEC 60079-11 concerning embedded voltage converters indicates that if the embedded voltage converter is fully integrated within the device (no external pin connections or connections to external components that are part of the converter design), the converter is considered safe and no declaration concerning the embedded voltage converter is needed.  I believe this is the case for the referenced devices.

    If so, the issue is then only total or lumped capacitance and inductance.  Since the referenced devices are ICs and not modules, those lumped values are possibly of no concern as there is practically no difference between them and a microprocessor or other integrated IC in the design which don't require declarations.

    The lumped passives will be further reviewed this week and if updated status is determined, I will reply accordingly.  Please confirm the fully embedded aspect of any voltage converter in the respective devices.

    Thanks.

  • 0 in reply to Steve Chancey
    TI__Mastermind 34330 points

    Hi Steve,

    Both the CC2564C and CC3120 contain DC-DC converters to accommodate lower voltage requirements of the system. They also require external components that are a part of the converter design.

    BR,

    Seong