5.8.1 Package Thermal Characteristics
Table 5-14 provides the thermal resistance characteristics for the package used on this device.
NOTE
Power dissipation of 4.14 W and an ambient temperature of 65ºC is assumed for ABF package.
Table 5-14 Thermal Resistance Characteristics
NO. |
PARAMETER |
DESCRIPTION |
°C/W(1)
|
AIR FLOW (m/s)(2)
|
T1 |
RΘJC
|
Junction-to-case |
1.41 |
N/A |
T2 |
RΘJB
|
Junction-to-board |
5.96 |
N/A |
T3 |
RΘJA
|
Junction-to-free air |
15.4 |
0 |
T4 |
Junction-to-moving air |
13.1 |
1 |
T5 |
12.2 |
2 |
T6 |
11.6 |
3 |
T7 |
ΨJT
|
Junction-to-free air |
0.94 |
0 |
T8 |
Junction-to-package top |
0.94 |
1 |
T9 |
0.94 |
2 |
T10 |
0.94 |
3 |
T11 |
ΨJB
|
Junction-to-free air |
5.12 |
0 |
T12 |
Junction-to-board |
4.78 |
1 |
T13 |
4.63 |
2 |
T14 |
4.52 |
3 |
- These values are based on a JEDEC defined 2S2P system (with the exception of the Theta JC [RΘJC] value, which is based on a JEDEC defined 1S0P system) and will change based on environment as well as application. For more information, see these EIA/JEDEC standards:
- JESD51-2, Integrated Circuits Thermal Test Method Environment Conditions - Natural Convection (Still Air)
- JESD51-3, Low Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages
- JESD51-6, Integrated Circuit Thermal Test Method Environmental Conditions - Forced Convection (Moving Air)
- JESD51-7, High Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages
- JESD51-9, Test Boards for Area Array Surface Mount Packages
- m/s = meters per second