MSC8103M1100 Motorola / Freescale Semiconductor, MSC8103M1100 Datasheet - Page 109

• Manufacturer Part Number: MSC8103M1100
• Description: Network Processor, Networking Digital Signal Processor
• Manufacturer: Motorola / Freescale Semiconductor

Chapter 4
Design
Considerations
4.1 Thermal Design Considerations
The average chip-junction temperature
Equation 1: T
where
The user should set T
T
J
is too high, the user should either lower the ambient temperature or the power dissipation of the chip.
J
= T
A
and P
A
+ (P
T
P
P
P
A
D
INT
I/O
JA
D
= ambient temperature C
= P
D
such that T
= package thermal resistance
= power dissipation on output pins in W—user determined
= I
•
INT
DD
JA
+ P
,
T
)
V
I/O
J
,
DD
J
in C can be obtained from the following:
does not exceed the maximum operating conditions. In case
in W
in W—chip internal power
,
junction to ambient
,
C/W
4-1