TS4972(2003) 데이터 시트보기 (PDF) - STMicroelectronics
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TS4972 Datasheet PDF : 28 Pages
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TS4972
Fig. 15 : Pout @ THD + N = 1% vs Supply
Voltage vs RL
1.6
Gv = 2 & 10
1.4 Cb = 1µF
F = 1kHz
1.2 BW < 125kHz
Tamb = 25°C
1.0
8Ω
6Ω
4Ω
0.8
16 Ω
0.6
0.4
0.2
0.0
2.5
32 Ω
3.0
3.5
4.0
4.5
5.0
Power Supply (V)
Fig. 17 : Power Dissipation vs Pout
1.4
Vcc=5V
1.2 F=1kHz
THD+N<1%
1.0
RL=4Ω
0.8
0.6
0.4
RL=8Ω
0.2
RL=16Ω
0.0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
Output Power (W)
Fig. 19 : Power Dissipation vs Pout
0.40
Vcc=2.6V
0.35 F=1kHz
THD+N<1%
0.30
RL=4Ω
0.25
0.20
0.15
RL=8Ω
0.10
0.05
RL=16Ω
0.00
0.0
0.1
0.2
0.3
0.4
Output Power (W)
Fig. 16 : Pout @ THD + N = 10% vs Supply
Voltage vs RL
2.0
Gv = 2 & 10
1.8 Cb = 1µF
1.6 F = 1kHz
BW < 125kHz
1.4 Tamb = 25°C
1.2
1.0
0.8
0.6
0.4
0.2
0.0
2.5
3.0
8Ω
6Ω
4Ω
16 Ω
3.5
4.0
Power Supply (V)
32 Ω
4.5
5.0
Fig. 18 : Power Dissipation vs Pout
0.6
Vcc=3.3V
F=1kHz
0.5 THD+N<1%
0.4
RL=4Ω
0.3
0.2
RL=8Ω
0.1
RL=16Ω
0.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
Output Power (W)
Fig. 20 : Power Derating Curves
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
Heat sink surface = 125mm2
(See demoboard)
No Heat sink
25
50
75
100
125
150
Ambiant Temperature ( C)
8/28
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