TS4890IST View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TS4890IST

RAIL TO RAIL OUTPUT 1W AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE LOW

STMicroelectronics 

Fig. 19 : Pout @ THD + N = 10% vs Supply

Voltage vs RL

2.0

Gv = 2 & 10

1.8 Cb = 1µF

1.6 F = 1kHz

1.4

BW < 125kHz

Tamb = 25°C

1.2

1.0

0.8

0.6

0.4

0.2

0.0

2.5

3.0

8Ω

6Ω

4Ω

16Ω

3.5

4.0

Vcc (V)

32Ω

4.5

5.0

Fig. 21 : 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

0.2

0.4

0.6

0.8

Output Power (W)

Fig. 23 : Power Dissipation vs Pout

0.40

Vcc=2.6V

0.35 F=1kHz

THD+N<1%

0.30

0.25

RL=4Ω

0.20

0.15

RL=8Ω

0.10

0.05

RL=16Ω

0.00

0.0

0.1

0.2

0.3

Output Power (W)

TS4890

Fig. 20 : 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

Output Power (W)

Fig. 22 : Power Dissipation vs Pout

0.40

Vcc=2.6V

0.35 F=1kHz

THD+N<1%

0.30

0.25

RL=4Ω

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. 24 : Power Derating Curves

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

0

QFN8

SO8

MiniSO8

25

50

75

100

125

150

Ambiant Temperature (°C)

9/32

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