Operating parameters, Absolute maximum ratings, Thermal characteristics – Maxim Integrated DS21Q55 User Manual
Page 231: Theta-ja ( θ, Vs airflow
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33. OPERATING PARAMETERS
ABSOLUTE MAXIMUM RATINGS*
Voltage Range on Any Pin Relative to Ground
-1.0V to +6.0V
Operating Temperature Range for DS21Q55
0
°
C to +70
°
C
Operating Temperature Range for DS21Q55N
-40
°
C to +85
°
C
Storage Temperature Range
-55
°
C to +125
°
C
Soldering Temperature
See J-STD-20A
* This is a stress rating only and functional operation of the device at these or any other conditions above
those indicated in the operation sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of time can affect reliability.
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 100-pin LQFP
-
-
2
Theta-JA (
θ
JA
) in Still Air for 10mm
CSBGA pin LQFP
-
-
2
NOTES:
1) The package is mounted on a four- layer JEDEC standard test board.
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.
THETA-JA (
θ
JA
) vs AIRFLOW
FORCED AIR
(meters per second)
THETA-JA (
θ
JA
)
100-PIN LQFP
THETA-JA (
θ
JA
)
10mm CSBGA
0
1
2.5