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UCC27324 1 and 8 pin connection.

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Genius 4220 points
Other Parts Discussed in Thread: UCC27324, UCC27524, UCC27424

Hi,

In  UCC27324 D/S P5 Pin description, Pin1 and 8 must connect to GND

General understanding, the N/C（No Connection） pin means there is no electrical connection between N/C pin and internal circuit.

So , in the case of UCC27324,  there are some electrical connection between UCC27324 1 and 8pin and internal circuit?

Thanks,

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  • 0
    TI__Intellectual 1050 points

    Hello,

     

    Pin 1 and 8 of UCC27324 is not connected to internal silicon.

    In general it is a good practice to connect these pins to GND, but it is acceptable to also leave these pins in floating condition.

    If pins #1,8 are connected to ground, then the IC footprint will not be able to accept other product options such as UCC27524 or UCC27424, where pins 1 & are ENABLE pins.

  • 0 in reply to Ramanan Natarajan
    Genius 4220 points

    Hi, Ramanan

    Thanks for your reply.

    If we leave the Pin 1 and 8 in floating condition,  Will it be a possible cause of lower noise tolerance?

    because UCC27324 D/S P5 Pin description said that we MUST connected the Pin1 and 8 to GND...

    Thanks

    Go