TDA7491LP13TR Datasheet, PDF (16/37 Pages) STMicroelectronics – 2 x 5-watt dual BTL class-D audio amplifier

Characterization curves
Figure 11. Power supply rejection ratio vs. frequency
PSRR (dB)
Test Condition :
Vcc = 6.6V,
RL = 4 ohm,
Rosc =39kΩ, Cosc =100nF,
Vin=0,
Gv =30dB,
Tamb =25°C
Vr = 500mVrms
Fr = 100Hz
TDA7491LP
Frequency (Hz)
Figure 12. Power dissipation and efficiency vs. output power
Test Condition :
Vcc = 6.6V,
RL = 4 ohm,
Rosc =39kΩ, Cosc =100nF,
Gv =30dB,
Tamb =25°C
90
80
70
60
50
40
30
20
10
0
0
1
2
3
4
Po per channel (W)
2
1. 8
1. 6
1. 4
1. 2
1
0. 8
0. 6
0. 4
0. 2
0
5
16/37
Doc ID 13541 Rev 5