Datasheet

TS4990 Electrical characteristics
Doc ID 9309 Rev 13 13/33
Figure 32. Power dissipation vs. P
out
Figure 33. Power derating curves
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
0.0
0.1
0.2
0.3
0.4
0.5
0.6
RL=4 Ω
RL=8 Ω
Vcc=3.3V
F=1kHz
THD+N<1%
RL=16 Ω
Power Dissipation (W)
Output Power (W)
0 25 50 75 100 125 150
0.0
0.2
0.4
0.6
0.8
1.0
1.2
No Heat sink
Heat sink surface ≈ 100mm
2
(See demoboard)
Flip-Chip Package Power Dissipation (W)
Ambiant Temperature ( C)
Figure 34. Clipping voltage vs. power supply
voltage and load resistor
Figure 35. Power dissipation vs. P
out
2.5 3.0 3.5 4.0 4.5 5.0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Tamb = 25°C
RL = 16Ω
RL = 8Ω
RL = 4Ω
Vout1 & Vout2
Clipping Voltage Low side (V)
Power supply Voltage (V)
0.0 0.1 0.2 0.3 0.4
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
RL=4 Ω
RL=8 Ω
Vcc=2.6V
F=1kHz
THD+N<1%
RL=16 Ω
Power Dissipation (W)
Output Power (W)
Figure 36. Clipping voltage vs. power supply
voltage and load resistor
Figure 37. Current consumption vs. power
supply voltage
2.5 3.0 3.5 4.0 4.5 5.0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Tamb = 25 ° C
RL = 16 Ω
RL = 8 Ω
RL = 4 Ω
Vout1 & Vout2
Clipping Voltage High side (V)
Power supply Voltage (V)
012345
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
No load
Tamb=25°C
Current Consumption (mA)
Power Supply Voltage (V)