BUF08821 Datasheet, PDF (19/27 Pages) Texas Instruments – Programmable Gamma-Voltage Generator and VCOM Calibrator with Integrated Two-Bank Memory

www.ti.com ................................................................................................................................................. SBOS438C – AUGUST 2008 – REVISED AUGUST 2009
DIE
Side View (a)
DIE
End View (b)
Thermal
Pad
Bottom View (c)
Figure 19. Views of Thermally-Enhanced PWP Package
For a given θ_JA (listed in the Electrical Characteristics
table), the maximum power dissipation is shown in
Figure 20, and is calculated by Equation 2:
( ) ^{PD =}
T
MAX
-
T_A
q_JA
(2)
Where:
P_D = maximum power dissipation (W)
T_MAX = absolute maximum junction temperature
(+125°C)
T_A = free-ambient air temperature (°C)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
-40 -20
0
20
40
60
80
100
T_A, Free-Air Temperature (°C)
Figure 20. Maximum Power Dissipation
vs Free-Air Temperature
(with PowerPAD soldered down)
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