TS4995 datasheet(12/26 Pages) STMICROELECTRONICS

Part #	TS4995

Description	1.2 W fully differential audio power amplifier with selectable standby and 6 dB fixed gain

PDF	26 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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12 / 26 page

Electrical characteristics

TS4995

12/26

Figure 26.

Output power vs. power supply

voltage

Figure 27.

Power derating curves

2,5

3,0

3,5

4,0

4,5

5,0

5,5

0,0

0,2

0,4

0,6

0,8

1,0

1,2

1,4

1,6

1,8

2,0

Cb = 1

μF

F = 1kHz

BW < 125 kHz

Tamb = 25

°C

Vcc (V)

025

100

125

0.0

0.2

0.4

0.6

0.8

1.0

1.2

No Heat sink

Heat sink surface

≈ 100mm

Ambiant Temperature (

°C)

Figure 28.

Output power vs. load resistance

Figure 29.

Power dissipation vs. output power

10 12141618202224 2628 30 32

200

400

600

800

1000

1200

1400

1600

1800

2000

Vcc=5.5V

Vcc=5V

Vcc=4.5V

Vcc=4V

Vcc=3.3V

Load Resistance (

Ω)

THD+N = 1%

F = 1kHz

Cb = 1

μF

BW < 125kHz

Tamb = 25

°C

Vcc=2.6V

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

RL=16

RL=8

Vcc=5V

F=1kHz

THD+N<1%

RL=4

Output Power (W)

Figure 30.

Power dissipation vs. output power Figure 31.

Power dissipation vs. output power

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)

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)

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