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Questions about DCV010512

Pokkun
Genius 4695 points
Other Parts Discussed in Thread: DCV010512

Hi,

My customer has a question about DCV010512.
Could you tell me about question?

[Question]
If you have to 'H' logic of SYNCIN terminal voltage,
what kind of phenomenon happens ?

Best regards,

Masumi Sekiguchi

  • 0
    TI__Mastermind 38230 points

    DCV01 series and other DCR/DCP series converters with sync.-in  pins must not have an logic high applied at any time. The logic high will overstress  and likely damage  the converter by forcing the internal switching frequency to be out of operational limits .

    The sync.-in pin has to be controlled by either a open drain in  on off function   or oscillator circuit  or open circuit  as shown in SBAA035 external sync./on/off   application note attached.

    Tom

    External Synchronization of the DCx series sbaa035b.pdf