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| BUF12800 Datasheet, PDF (16/20 Pages) Burr-Brown (TI) – REFERENCE VOLTAGE GENERATOR for LCD GAMMA CORRECTION | |||
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BUF12800
SBOS315 â DECEMBER 2004
For a given qJA, the maximum power dissipation is
shown in Figure 18, and is calculated by the following
formula:
Ç Ç PD +
TMAX * TA
qJA
Where:
PD = maximum power dissipation (W)
TMAX = absolute maximum junction temperature (125°C)
TA = free-ambient air temperature (°C)
qJA = qJC + qCA
qJC = thermal coefficient from junction to case (°C/W)
qCA = thermal coefficient from case-to-ambient air (°C/W)
www.ti.com
6
5
4
3
2
1
0
â40 â20
0
20
40
60
80
100
TA, FreeâAir Temperature (_C)
Figure 18. Maximum Power Dissipation vs Free-
Air Temperature (with PowerPAD soldered down)
16
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