SI824X Datasheet, PDF (13/30 Pages) Silicon Laboratories – CLASS D AUDIO DRIVER WITH PRECISION DEAD-TIME GENERATOR

Si824x
3.1. Typical Performance Characteristics (0.5 Amp)
The typical performance characteristics depicted in Figures 8 through 19 are for information purposes only. Refer
to Table 1 on page 5 for actual specification limits.
10
8
Tfall
6
4
Trise
2
VDD=12V, 25°C
C_L = 100 pF
0
9
12
15
18
21
24
VDDA Supply (V)
Figure 8. Rise/Fall Time vs. Supply Voltage
7
Duty Cycle = 50%
6 _{CL = 100 pF}
5 ^{1 Channel Switching}
4
1MHz
500kHz
3
100kHz
2
1
50 kHz
0
9
14
19
24
VDDA Supply Voltage (V)
Figure 11. Supply Current vs. Supply Voltage
30
25
H-L
20
15
10
9
L-H
VDD=12V, 25°C
C_L = 100 pF
12
15
18
21
24
VDDA Supply (V)
Figure 9. Propagation Delay vs. Supply Voltage
4
Duty Cycle = 50%
3.5 ^CL ^{= 0 pF}
1 Channel Switching
3
2.5
1MHz
500kHz
2
1.5
1
9
100kHz
50 kHz
14
19
24
VDDA Supply Voltage (V)
Figure 10. Supply Current vs. Supply Voltage
5
4
3
2
1
-50
VDDA = 15V,
f = 250kHz, C_L = 0 pF
Duty Cycle = 50%
2 Channels Switching
0
50
100
Temperature (°C)
Figure 12. Supply Current vs. Temperature
40
35
30
25
20
15
10
5
0
0.0
Trise
Tfall
VDD=12V, 25°C
0.5
1.0
1.5
2.0
Load (nF)
Figure 13. Rise/Fall Time vs. Load
Rev. 1.0
13