DS3105 Maxim Integrated Products, DS3105 Datasheet - Page 107

• Manufacturer Part Number: DS3105
• Description: Line Card Timing IC
• Manufacturer: Maxim Integrated Products

Table 12-1. LQFP Thermal Properties, Natural Convection
Note 1: The package is mounted on a four - layer JEDEC standard test board with no airflow and dissipating maximum power.
Note 2: Theta - JA (θ
Table 12-2. LQFP Theta-JA (θ
Ambient Temperature (Note 1)
Junction Temperature
Theta-JA (θ
Psi-JB
Psi-JT
FORCED AIR (METERS PER SECOND)
Confidential. Document Issued Under Non-Disclosure Agreement. Confidential. Document Issued Under Non-Disclosure Agreement.
with no airflow and dissipating maximum power.
JA
), Still Air (Note 2)
JA
) is the junction to ambient thermal resistance, when the package is mounted on a four - layer JEDEC standard test board
PARAMETER
2.5
0
1
JA
) vs. Airflow
Preliminary. Subject to Change Without Notice.
THETA-JA (θ
107 of 110
TBD °C/W
TBD °C/W
TBD °C/W
-40°C
-40°C
MIN
JA
)
TBD °C/W
TBD °C/W
TBD °C/W
TYP
—
—
+125°C
+85°C
MAX
DS3105