Hi Team,
Please help to confirm the thermal information of SN74CB3Q3253PWR. Data sheet doesn't show Θjc.
Also, how to calculate its power dissipation? Please kindly provide the formula.
Thanks
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Hi Team,
Please help to confirm the thermal information of SN74CB3Q3253PWR. Data sheet doesn't show Θjc.
Also, how to calculate its power dissipation? Please kindly provide the formula.
Thanks
Daniel,
Please se the thermal information below.
RGY | DBQ | PW | DGV | ||
Theta Ja | Juntion-to-ambient thermal resistance | 45.7 | 114.3 | 112.7 | 126 |
Theta Jc(top) | Junction-to-case (top) Thermal Resistance | 59.6 | 65.4 | 47.5 | 51.3 |
Theta JB | Junction-to-board thermal resistance | 23.3 | 56.8 | 57.8 | 57.8 |
Psi JT | Junction-to-top characterization parameter | 2.2 | 18.3 | 6 | 5.9 |
Pis JB | Junction-to-board characterization parameter | 23.4 | 56.4 | 57.3 | 57.3 |
Jc(bottom) | Junction-to-case (bottom) thermal resistance | 11.5 | N/A | N/A | N/A |
The formula and excel calculator can be found in the FAQ thread below.
To help my understanding why do you need the thermal information and to calculate the power dissipation? How is this information used in the system design?
Thank you,
Adam