TDA7491LP Datasheet, PDF (19/37 Pages) STMicroelectronics – 2 x 5-watt dual BTL class-D audio amplifier

TDA7491LP
Characterization curves
4.2
With 8-Ω load at V_CC = 9 V
Figure 16. Output power vs. supply voltage
Test Condition :
Vcc = 5~9V,
RL = 8 ohm,
Rosc =39kΩ, Cosc =100nF,
f =1kHz,
Gv =30dB,
Tamb =25°C
Specification Limit:
Typical:
Vs =9V,Rl = 8 ohm
Po =5W @THD =10%
Po =4W @THD =1%
6
5. 5
5
4. 5
4
3. 5
3
2. 5
2
1. 5
1
0. 5
0
5
Rl =8 ohm
f =1kHz
THD =10%
THD =1%
6
7
8
9
Supply voltage (V)
Figure 17. THD vs. output power (1 kHz)
Test Condition:
Vcc =9V,
RL= 8 ohm,
Rosc =39kΩ, Cosc =100nF,
f =1kHz,
Gv =30dB,
Tamb =25°C
Specification Limit:
Typical:
Po =5W @ THD =10%
THD (%)
10
5
2
1
0.5
0.2
0.1
0.05
0.02
0.01
100m
200m 300m 400m 600m 800m 1
2
Output Power (W)
3
4 56
Doc ID 13541 Rev 5
19/37