Package Thermal Specifications - Intel 80C186EB Manual

80C186EB 80C188EB 80L186EB 80L188EB
PACKAGE THERMAL
SPECIFICATIONS
The 80C186EB 80L186EB is specified for operation
when T (the case temperature) is within the range
C
of 40 C to 100 C (PLCC package) or
b a
114 C (QFP package) T
a
any environment to determine whether the proces-
sor is within the specified operating range The case
temperature must be measured at the center of the
top surface
Table 10 Thermal Resistance (i
i
CA
i
CA
i
CA
22
40 C to
b
may be measured in
C
CA
Airflow Linear ft min (m sec)
0 200
(0) (1 01) (2 03) (3 04) (4 06) (5 07)
(PLCC) 30 24
(QFP) 58 47
(SQFP) 70 TBD
T (the ambient temperature) can be calculated
A
from i (thermal resistance from the case to ambi-
CA
ent) with the following equation
T T
e
A C
Typical values for i at various airflows are given
CA
in Table 10 P (the maximum power consumption
specified in watts) is calculated by using the maxi-
mum ICC as tabulated in the DC specifications and
V of 5 5V
CC
) at Various Airflows (in C Watt)
400 600 800 1000
21 19 17 16 5
43 40 38 36
TBD TBD TBD TBD
P i
b
CA