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DS33Z41 Quad IMUX Ethernet Mapper
143 of 167
Note 1: Typical power is 145mW.
Note 2: All outputs loaded with rated capacitance; all inputs between VDD and VSS; inputs with pullups connected to V
DD
.
Note 3: RST pin held low, or RST bit set.
Note 4: RST pin held low, or RST bit set. All clocks stopped.
11.1 Thermal Characteristics
Table 11-3. Thermal Characteristics
PARAMETER MIN TYP MAX NOTES
Ambient Temperature
-40°C
+85°C
1
Junction Temperature
+125°C
Theta-JA (θ
JA
) in Still Air for 169-Pin
14mm CSBGA
+52.7°C/W
2
Note 1:
The package is mounted on a four-layer JEDEC standard test board.
Note 2:
Theta-JA (θ
JA
) is the junction to ambient thermal resistance, when the package is mounted on a four-layer JEDEC standard
test board.
Table 11-4. Theta-JA vs. Airflow
AIR FLOW THETA-JA
0m/s
52.7°C/W
1m/s
45.8°C/W
2.5m/s
43.8°C/W