TS4890 ST Microelectronics, Inc., TS4890 Datasheet - Page 9

• Manufacturer Part Number: TS4890
• Description: 1W Mono Audio Amplifier With Standby Active High
• Manufacturer: ST Microelectronics, Inc.

Fig. 19 : Pout @ THD + N = 10% vs Supply
Voltage vs RL
Fig. 21 : Power Dissipation vs Pout
Fig. 23 : Power Dissipation vs Pout
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
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
2.5
0.0
0.0
Vcc=3.3V
F=1kHz
THD+N<1%
Vcc=2.6V
F=1kHz
THD+N<1%
Gv = 2 & 10
Cb = 1 F
F = 1kHz
BW < 125kHz
Tamb = 25 C
3.0
RL=16
0.2
RL=16
0.1
Output Power (W)
Output Power (W)
3.5
4
Vcc (V)
0.4
6
4.0
RL=8
0.2
8
0.6
RL=8
4.5
RL=4
16
32
RL=4
0.3
5.0
0.8
Fig. 20 : Power Dissipation vs Pout
Fig. 22 : Power Dissipation vs Pout
Fig. 24 : Power Derating Curves
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.0
0
0.0
Vcc=5V
F=1kHz
THD+N<1%
Vcc=2.6V
F=1kHz
THD+N<1%
0.2
25
MiniSO8
0.1
Ambiant Temperature (°C)
RL=16
0.4
50
Output Power (W)
Output Power (W)
SO8
0.6
QFN8
75
RL=16
0.2
RL=8
0.8
100
1.0
0.3
RL=4
RL=8
125
RL=4
1.2
TS4890
150
1.4
0.4
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