TS4990EKIJT STMICROELECTRONICS [STMicroelectronics], TS4990EKIJT Datasheet - Page 13

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

TS4990
Figure 32. Power dissipation vs. P
Figure 34. Clipping voltage vs. power supply
Figure 36. Clipping voltage vs. power supply
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.0
Vcc=3.3V
F=1kHz
THD+N<1%
Tamb = 25 ° C
Tamb = 25 ° C
voltage and load resistor
voltage and load resistor
2.5
2.5
0.1
RL=16 Ω
0.2
3.0
3.0
Power supply Voltage (V)
Power supply Voltage (V)
Output Power (W)
0.3
3.5
3.5
RL = 4 Ω
RL = 8 Ω
RL = 4 Ω
0.4
RL = 8 Ω
4.0
4.0
0.5
RL = 16 Ω
RL = 16 Ω
RL=8 Ω
out
RL=4 Ω
4.5
4.5
0.6
0.7
5.0
5.0
Figure 33. Power derating curves
Figure 35. Power dissipation vs. P
Figure 37. Current consumption vs. power
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
1.2
1.0
0.8
0.6
0.4
0.2
0.0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.0
0
0
No load
Tamb=25 ° C
Vcc=2.6V
F=1kHz
THD+N<1%
supply voltage
25
No Heat sink
1
0.1
RL=16 Ω
Ambiant Temperature ( C)
Power Supply Voltage (V)
50
Output Power (W)
2
Electrical characteristics
Heat sink surface ≈ 100mm
(See demoboard)
75
0.2
RL=8 Ω
3
100
0.3
out
4
125
RL=4 Ω
2
150
0.4
5
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