SI824X Datasheet, PDF (15/30 Pages) Silicon Laboratories – CLASS D AUDIO DRIVER WITH PRECISION DEAD-TIME GENERATOR

Si824x
3.2. Typical Performance Characteristics (4.0 Amp)
The typical performance characteristics depicted in Figures 20 through 31 are for information purposes only. Refer
to Table 1 on page 5 for actual specification limits.
10
8
Tfall
6
Trise
4
2
VDD=12V, 25°C
C_L = 100 pF
0
9
12
15
18
21
24
VDDA Supply (V)
Figure 20. Rise/Fall Time vs. Supply Voltage
30
25
L-H
20
15
10
9
H-L
VDD=12V, 25°C
C_L = 100 pF
12
15
18
21
24
VDDA Supply (V)
Figure 21. Propagation Delay vs. Supply
Voltage
14 Duty Cycle = 50%
12
C_L = 0 pF
1 Channel Switching
10
1MHz
8
500kHz
6
4
2
0
9
14
19
VDDA Supply Voltage (V)
100kHz
50 kHz
24
Figure 22. Supply Current vs. Supply Voltage
14 _{Duty Cycle = 50%}
12 ^CL ^{= 100 pF}
1 Channel Switching
10
8
1MHz
500kHz
6
4
100kHz
2
50 kHz
0
9
14
19
24
VDDA Supply Voltage (V)
Figure 23. Supply Current vs. Supply Voltage
10
8
6
4
2
0
-50
VDDA = 15V,
f = 250kHz, C_L = 0 pF
Duty Cycle = 50%
2 Channels Switching
0
50
100
Temperature (°C)
Figure 24. Supply Current vs. Temperature
40
35
30
Trise
25
20
Tfall
15
10
5
VDD=12V, 25°C
0
0 1 2 3 4 5 6 7 8 9 10
Load (nF)
Figure 25. Rise/Fall Time vs. Load
Rev. 1.0
15