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UCC27212: Propagation delay drift over temp vs inter part skew

SimonF
Expert 3100 points
Part Number: UCC27212
Other Parts Discussed in Thread: LM5107

Hi Team,

my customer is using multiple UCC27212 on his board and he would like to know what is the biggest difference in propagation delay between those parts. All parts have the same temperature so the temperature drift should not change the propagation delay difference between the parts.

Does he need to calculate with 20ns difference between the parts or are the parts closer together if they are on the same temperature?

If you have the same information for LM5107 I would need that as well.

Thank you for your time!

Best regards,

Simon

  • 0
    TI__Genius 12990 points

    Hi Simon,

    Thanks for asking about the data for UCC27212 (data for LM5107 is not available). Since the data you are referring to is not in the datasheet TI does not guarantee any value thats not in the datasheet. 

    Looking at the char data across temp the largest standard deviation from the tested mean is at 125C in which there is less than 5ns six sigma spread from the mean. As this value is not guaranteed, it is calculated from the prop delay which is production tested therefore we are highly confident of this value.

    I hope this answers your question as 20ns would not reflect the part to part skew (with identical operating conditions) but the prop delay spread across temp, please reach out to me and we can take this offline so I can help to answer the customers questions fully.

    Thanks,