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LM7800: Theta JA of TO-220

Noriyuki Takahashi
Genius 11250 points
Part Number: LM7800
Other Parts Discussed in Thread: LM341,

Tool/software:

Hi team

Could you tell what the Theta JA of TO-220 is? 

I am not sure which is ture, 22.6 degree C/W or 54 degree C/W as below figure. I want to confirm this value not only for LM7800, but also other TO-220 devices like LM341.

Regards,

Noriyuki Takahashi

  • 0
    TI__Expert 6990 points

    Hi Takahashi-san,

    The correct figure is 23.9'C/W and applies to all NDE package OPNS found at the end of the datasheet. The table is more authoritative, and the footnote is wrong.

    It seems that the footnote was copied over from an earlier version (SNOSBT0J) and remained unchanged. Thank you for bringing it to our attention, it has now been logged for correction.

    Best,

    Gregory Thompson