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SN74LVTH245A: θ junction-to-case needed for three part numbers

high speed guy
Expert 3125 points
Part Number: SN74LVTH245A
Other Parts Discussed in Thread: SN74LVTH244A, SN74LVTH125

Hello,

I need for the following  products θ junction-to-case.

SN74LVTH245A                   TSSOP-20, PW package

SN74LVTH244A                   TSSOP-20, PW package

SN74LVTH125                    TSSOP-14, PW package

Thank you,
HSG 

  • 0
    TI__Guru* 96591 points

    Hello HSG,

    Here's the thermals for the SN74LVTH125PWR

    Result- Theta JA-High K (standard datasheet value)

    		 119.0

    Result-Theta JC, top (standard datasheet value)

    54.0

    Result-Theta JB (standard datasheet value)

    60.8

    Result- Psi JT (standard datasheet value)

    9.6

    Result- Psi JB (standard datasheet value)

    60.3

    Result-Theta JC, bottom (standard datasheet value)

    n/a

    The other 2 I have to submit for thermal modelling. We can expect an answer within 2 weeks.

  • 0 in reply to Emrys Maier
    TI__Guru* 96591 points

    Hi HSG,

    I have the data you requested:

    SN74LVTH245A PW SN74LVTH244A PW
    Result- Theta JA-High K (standard datasheet value): 100.6 103.3 C/W
    Result-Theta JC, top (standard datasheet value): 34.5 36.8 C/W
    Result-Theta JB (standard datasheet value): 52.5 55.3 C/W
    Result- Psi JT (standard datasheet value): 3.1 3.5 C/W
    Result- Psi JB (standard datasheet value): 51.8 54.6 C/W
    Result-Theta JC, bottom (standard datasheet value): n/a n/a C/W