TS4990 datasheet(13/32 Pages) STMICROELECTRONICS

13 / 32 page

TS4990

Electrical characteristics

13/32

Figure 32.

Power dissipation vs. Pout

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

RL=8

Vcc=3.3V

F=1kHz

THD+N<1%

RL=16

Output Power (W)

100

125

150

0.0

0.2

0.4

0.6

0.8

1.0

1.2

No Heat sink

Heat sink surface

≈ 100mm

(See demoboard)

Ambiant Temperature ( C)

Figure 34.

Clipping voltage vs. power supply

voltage and load resistor

Figure 35.

Power dissipation vs. Pout

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 = 16

RL = 8

RL = 4

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

RL=8

Vcc=2.6V

F=1kHz

THD+N<1%

RL=16

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

RL = 8

RL = 4

Power supply Voltage (V)

012

345

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

No load

Tamb=25

°C

Power Supply Voltage (V)

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