TDA7490LSA Datasheet, PDF (7/13 Pages) STMicroelectronics – 15W +15W Stereo Class-D Amplifier

TDA7490LSA
2 Electrical characteristcs
Figure 5. output power vs supply voltage
(single)
Pout (W) ¹⁶
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
+14
Rload=6ohm
f = 1KHz
THD =10%
THD =1%
+16 +18 +20 +22 +24 +26
Vsupply (V)
+28 +30
Figure 7. output power vs supply voltage
Pout
16
(W₁) ₅
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
+14
Rload=4 ohm
f = 1KHz
+15 +16
+17 +18
Vsupply (V)
THD=10%
THD=1%
+19 +20 +21 +22
Figure 9. dissipated power vs output power
Pd(W) ₄
3.5
Vcc=28V
3
2.5
Vcc=24V
Vcc=22V
2
Vcc=20V _Rload=8ohm
1.5
Vcc=18V
f = 1KHz
1
0 1 2 3 4 5 6 7 8 9 10 11 12 13
2XPout (W)
Figure 6. dissipated power vs output power
Pd (W) _5.5
5
Vcc=29V
4.5
4
Vcc=27V
3.5
Vcc=24V
3
2.5
Vcc=20V
2
Vcc=18V
Rload=6 ohm
1.5
Vcc=16V
f = 1KHz
1
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
2 X Pout (W)
Figure 8. dissipated power vs output power
Pd (W) ₄
3.5
Vcc=20V
3
Vcc=18V
2.5
Vcc=16V
2
Vcc=14V
1.5
Rload=4 ohm
f = 1KHz
1
0 1 2 3 4 5 6 7 8 9 10
2 X Pout (W)
Figure 10. quiescent current vs supply voltage
Iq(mA)
70
65
60
55
50
45
40
7
Rl = No load
No LC filter
8 9 10 11 12 13 14 15
Vs=(+/-V)
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