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ISOW7742: Recommendation values for decoupling capacitors

ttd
Mastermind 8600 points
Part Number: ISOW7742
Other Parts Discussed in Thread: ISOW7741, ISOW7741DFMEVM

Tool/software:

Dear Technical Support Team,

I have a question about decoupling capacitors.

For example , decoupling capacitors for VIO/VISOIN are different between Figure 10-1. Isolated Power and SPI for ADC Sensing Application with ISOW7741  and Table 10-1. Design Parameters. 

Which is the correct decoupling capacitors recommendation?  

ISOW7741DFMEVM has 10uF and 1uF + 0.1uF. 

Best Regards,

ttd

  • 0
    TI__Expert 7625 points

    Hi ttd,

    The Table 10-1 infers that 0.1uF Capacitor on VIO/VISOIN is compulsory and should at least be present in the system near to the pins for the functionality of the Device.

    But the Recommended Configuration is always 10uF + 1uF + 0.1uF for the best application performance of the device

    Regards
    Varun