TDA7454
Figure 3: QuiescentCurrent vs. Supply Voltage
Figure 4: OutputPower vs. Supply Voltage
Id (mA)
240
Po (W)
45
40
THD= 10 %
200
RL= 4 Ohm
35
Vi = 0
RL = 4 Ohm
f= 1 KHz
30
160
25
120
80
THD= 1 %
20
15
10
5
40
8
10
12
14
16
18
8
9
10 11 12 13 14 15 16 17 18
Vs (V)
Vs (V)
Figure 5: Max. Output Power vs. Supply Voltage
Figure 6: OutputPower vs. Supply Voltage
Po(W)
50
Po (W)
60
55
45
THD= 10 %
50
45
40
RL= 4 Ohm
f= 1 KHz
RL= 2 Ohm
f = 1 KHz
35
40
35
30
25
20
15
10
5
30
THD= 1%
25
20
15
10
5
8
9
10 11 12 13 14 15 16 17 18
Vs (V)
8
9
10
11
12
13
14
15
16
Vs(V)
Figure 7: Max. Output Power vs. Supply Voltage
Figure 8: THD vs. Output Power
THD(%)
10
Po (W)
75
70
65
RL= 4Ohm
RL= 2 Ohm
60
HI-EFFMODE
f= 1 KHz
55
1
0.1
0
f= 10KHz
50
45
40
35
30
25
20
15
f= 1KHz
8
9
10
11
Vs (V)
12
13
14
15
16
0
1
10
Po(W)
6/13
STMICROELECTRONICS [ ST ]
