SI824X Datasheet, PDF (19/30 Pages) Silicon Laboratories – CLASS D AUDIO DRIVER WITH PRECISION DEAD-TIME GENERATOR

Si824x
Equation 1 and Equation 2 are graphed in Figure 32 where the points along the load line represent the package
dissipation-limited value of CL for the corresponding switching frequency.
1 6 ,0 0 0
1 4 ,0 0 0
1 2 ,0 0 0
1 0 ,0 0 0
8 ,0 0 0
6 ,0 0 0
4 ,0 0 0
2 ,0 0 0
0
0.5A D river (pF )
4A D river (pF )
T_a = 25 °C
Frequency (K hz)
Figure 32. Max Load vs. Switching Frequency
20
C_L = 1000pF
15
10
C_L = 500pF
5
C_L = 200pF
VDD=15V, 25°C
0
0
200
400
600
800
Switching Frequency (kHz)
Figure 33. Switching Frequency vs. Load Current
1000
Rev. 1.0
19