at9173eg

Manufacturer Part Numberat9173eg
DescriptionBus Termination Regulator
ManufacturerAME, Inc.
at9173eg datasheet
 


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AME, Inc.
AT9173
n Thermal issue
AT9173 has a internal thermal protection to protect the device at any overload conditions. For safety reason
the operation junction temperature should not exceed 125 ℃. The dissipation of the device is
P
(
V
V
)
xI
D
IN
OUT
OUT
And also the maximum power dissipation is
P
(
T
T
/ )
D
,
MAX
J
,
MAX
A
Where Tj,max is the maximum operation junction 125 degree C, Ta is the ambient temperature and the is
the junction to ambient thermal resistance. The junction to ambient thermal resistance is 70 ℃ /W for exposed
pad SOP-8 package. It can be dramatically reduced by placing a large area PCB trace under exposed pad to
emit heat generated by the die attached to the exposed pad.
8
JA
Bus Termination Regulator
JA
Rev. C.05