TS4990EKIJT STMICROELECTRONICS [STMicroelectronics], TS4990EKIJT Datasheet - Page 12

• Manufacturer Part Number: TS4990EKIJT
• Description: 1.2 W audio power amplifier with active low standby mode
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical characteristics
12/32
Figure 26. Output power vs. power supply
Figure 28. Output power vs. load resistor
Figure 30. Output power vs. load resistor
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.6
0.5
0.4
0.3
0.2
0.1
0.0
1.0
0.8
0.6
0.4
0.2
0.0
4
RL = 16 Ω
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
2.5
voltage
8
8
THD+N=1%
THD+N=1%
3.0
12
Load Resistance ( )
Load Resistance ( )
THD+N=10%
3.5
THD+N=10%
THD+N=10%
16
16
Vcc (V)
4.0
20
THD+N=1%
4.5
24
24
Vcc = 3.3V
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
Vcc = 2.6V
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
5.0
28
5.5
32
32
Figure 27. Output power vs. load resistor
Figure 29. Output power vs. power supply
Figure 31. Power dissipation vs. P
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.6
0.5
0.4
0.3
0.2
0.1
0.0
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.0
4
RL = 32 Ω
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
Vcc=5V
F=1kHz
THD+N<1%
2.5
voltage
0.2
8
THD+N=1%
3.0
0.4
12
Load Resistance ( )
THD+N=10%
0.6
3.5
Output Power (W)
THD+N=10%
16
RL=16 Ω
Vcc (V)
0.8
4.0
20
1.0
THD+N=1%
4.5
RL=8 Ω
24
RL=4 Ω
1.2
Vcc = 5V
F = 1kHz
BW < 125kHz
Tamb = 25 ° C
out
5.0
28
1.4
TS4990
5.5
1.6
32