Datasheet

TMS320F28027, TMS320F28026, TMS320F28023, TMS320F28022
TMS320F28021, TMS320F28020, TMS320F280200
www.ti.com SPRS523J –NOVEMBER 2008–REVISED OCTOBER 2013
7 Thermal/Mechanical Data
Table 7-1 and Table 7-2 show the thermal data. See Section 6.5 for more information on thermal design
considerations.
The mechanical package diagrams that follow the tables reflect the most current released mechanical data
available for the designated devices.
Table 7-1. Thermal Model 38-Pin DA Results
AIR FLOW
PARAMETER 0 lfm 150 lfm 250 lfm 500 lfm
θ
JA
[°C/W] High k PCB 70.1 56.4 53.9 50.2
Ψ
JT
[°C/W] 0.34 0.61 0.74 0.98
Ψ
JB
32.5 32.1 31.7 31.1
θ
JC
12.8
θ
JB
33
Table 7-2. Thermal Model 48-Pin PT Results
AIR FLOW
PARAMETER 0 lfm 150 lfm 250 lfm 500 lfm
θ
JA
[°C/W] High k PCB 64 50.4 48.2 45
Ψ
JT
[°C/W] 0.56 0.94 1.1 1.38
Ψ
JB
30.1 28.7 28.4 28
θ
JC
13.6
θ
JB
30.6
Copyright © 2008–2013, Texas Instruments Incorporated Thermal/Mechanical Data 123
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