TS68882MF1B/C20 E2V, TS68882MF1B/C20 Datasheet - Page 9

• Manufacturer Part Number: TS68882MF1B/C20
• Manufacturer: E2V

Specifications of TS68882MF1B/C20

• Operating Temperature (max): 125C
• Operating Temperature Classification: Military
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

5. Thermal Characteristics
Table 5-1.
6. Power Considerations
6.1
e2v semiconductors SAS 2007
Package
PGA 68
CQFP
Mechanical and Environmental
Symbol
JA
JC
JA
JC
The average chip-junction temperature, T
T
T
P
P
P
For most applications P
An Approximate relationship between P
P
Solving equations (1) and (2) for K gives
K = P
where K is constant pertaining to the particular part K can be determined from the equation (3) by mea-
suring PD (at equilibrium) for a known T
by solving equations (1) and (2) iteratively for any value of T
The total thermal resistance of a package (
resenting the barrier to heat flow from the semiconductor junction to the package (case), surface (
and from the case to the outside ambient (
minimized by such thermal management techniques as heat sinks, ambient air cooling and thermal con-
vection. Thus, good thermal management on the part of the user can significantly reduce
approximately equals
junction temperature.
The microcircuits shall meet all mechanical environmental requirements of either MIL-STD-883 for class
B devices.
A
JA
JA
JA
J
D
INT
I/O
D
= Ambient Temperature, °C
= T
= P
= K: (T
= Package Thermal Resistance, Junction-to-Ambient, °C/W
=
is device related and cannot be influenced by the user. However,
= Power Dissipation on Input and Output Pins - User Determined
= I
D
A
Parameter
Thermal Resistance - Ceramic Junction To Ambient
Thermal Resistance - Ceramic Junction To Case
Thermal Resistance - Ceramic Junction To Ambient
Thermal Resistance - Ceramic Junction To Case
INT
. (T
JC
CC
+ (P
+
+ P
A
x V
J
+ 273)
+ 273) +
D
CA
I/O
CC,
+
Watts - Chip Internal Power
JA
)
JA
I/O
JC.
· P
< P
Substitution of
D
2
INT
and can be neglected.
D
A
. Using this value of K, the values of P
J,
and T
JC
in °C can be obtained from:
CA
JA
for
) can be separated into two components,
). These terms are related by the equation:
J
(if P
JA
I/O
in equation (1) will result in a lower semiconductor
(1)
(2)
(3)
(4)
is neglected) is:
A
.
CA
is user dependent and can be
D
0852B–HIREL–06/07
and T
Value
33
33
4
3
J
can be obtained
JC
TS68882
CA
and
so that
Rating
°C/W
°C/W
°C/W
°C/W
CA
, rep-
JC
JA
9
)