Si8244 SILABS [Silicon Laboratories], Si8244 Datasheet - Page 19

• Manufacturer Part Number: Si8244
• Description: CLASS D AUDIO DRIVER WITH PRECISION DEAD-TIME GENERATOR
• Manufacturer: SILABS [Silicon Laboratories]

Equation 1 and Equation 2 are graphed in Figure 31 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
20
15
10
5
0
Figure 32. Switching Frequency vs. Load Current
0
Figure 31. Max Load vs. Switching Frequency
200
Switching Frequency (kHz)
400
Rev. 0.2
F re q u e n c y (K h z )
T
a
= 25 °C
VDD=15V, 25°C
600
C
L
= 1000pF
C
C
L
L
= 200pF
= 500pF
800
0 .5 A D r i ve r ( p F )
4 A D r i ve r ( p F )
1000
Si824x
19