Page 17
TPSi1085 User Guide
Rev 11/29
Technical Notes
Output Current (A) vs Cold Plate Temperature (°C)
with Cold Wall Mounting
Cold Plate Temperature (°C)
Output Current (A)
Cold Wall Conduction
To increase the performance of the TPSi1085 and minimize temperature deration, a sealed cold wall
can be applied to the top surface of the power module. This signiicantly optimizes the TPSi1085’s
performance when experiencing extreme temperatures as seen by the graph below. For more
information on how to implement this effective cooling solution, please contact our Professional
Services Team at +1.604.945.9565 or visit http://www.tri-m.com/support/proservices.html.
TPSi1085 Side View with Cold Wall Mounting
PCB
Power Module
Cold Wall
Note
Calculations are
estimates with
a 12V input and
transverse airlow
47.2mm
26.2mm
33.32mm
18.19mm
Thermal block screws:
3.8mm deep M3 thread
Height above PCB: 12.7mm
Location of thermal block holes
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
18
17.5
17
16.5
16
15.5
15
14.5
14
13.5
13
