TS4972IJT STMicroelectronics, TS4972IJT Datasheet - Page 8

• Manufacturer Part Number: TS4972IJT
• Description: 1.2W POWER AUDIO AMPLIFIER WITH STANDBY MODE ACTI
• Manufacturer: STMicroelectronics

TS4972
Fig. 15 : Pout @ THD + N = 1% vs Supply
Voltage vs RL
Fig. 17 : Power Dissipation vs Pout
Fig. 19 : Power Dissipation vs Pout
8/28
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
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.0
2.5
0.0
Vcc=5V
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
0.2
3.0
0.4
0.1
RL=16
Power Supply (V)
0.6
3.5
Output Power (W)
Output Power (W)
RL=16
4
0.8
0.2
4.0
6
RL=8
1.0
8
RL=8
RL=4
1.2
0.3
4.5
16
32
RL=4
1.4
5.0
1.6
0.4
Fig. 16 : Pout @ THD + N = 10% vs Supply
Voltage vs RL
Fig. 18 : Power Dissipation vs Pout
Fig. 20 : Power Derating Curves
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
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
0.0
2.5
Vcc=3.3V
F=1kHz
THD+N<1%
Gv = 2 & 10
Cb = 1 F
F = 1kHz
BW < 125kHz
Tamb = 25 C
0.1
25
No Heat sink
3.0
RL=16
Ambiant Temperature ( C)
0.2
50
Power Supply (V)
3.5
Output Power (W)
4
0.3
Heat sink surface = 125mm
(See demoboard)
75
6
0.4
4.0
100
8
0.5
RL=8
4.5
16
RL=4
125
0.6
32
2
0.7
5.0
150