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SN74AHCT541: Others thermal value

Part Number: SN74AHCT541

Tool/software:

HI, Staff

The following is stated in SN74AHCT541 datasheet (SCLS269Q) 9 Revision History.

• Updated RθJA values: PW = 83 to 116.8, DB = 70 to 87.2, DW = 58 to 81.1; Updated PW, DB, and DW
packages for RθJC(top), RθJB, ψJT, ψJB, and RθJC(bot), all values in °C/W ................................................ 4

Page 4 4.4 Thermal Information only lists the RΘJA value.
What are the values ​​of RθJC(top), RθJB, ψJT, ψJB, and RθJC(bot)?

best regards
cafain

  • Hi Cafain,

    Please see below: 

    Result-Theta JC, top (standard datasheet value) 51.4
    Result-Theta JB (standard datasheet value) 64.4
    Result- Psi JT (standard datasheet value) 6.7
    Result- Psi JB (standard datasheet value) 63.8
    Result-Theta JC, bottom (standard datasheet value) n/a