TS4972 datasheet(9/30 Pages) STMICROELECTRONICS

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Electrical Characteristics

TS4972

9/30

Figure 19: Power Dissipation vs Pout

Figure 20: Power Derating Curves

Figure 21: THD + N 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

Ω

RL=8

Ω

Vcc=3.3V

F=1kHz

THD+N<1%

RL=16

Ω

Output Power (W)

100

125

150

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

No Heat sink

Heat sink surface = 125mm

(See demoboard)

Ambiant Temperature ( C)

1E-3

0.01

0.1

0.01

0.1

RL = 4

Ω

Vcc = 5V

Gv = 2

Cb = Cin = 1

µF

BW < 125kHz

Tamb = 25

°C

20kHz

20Hz

1kHz

Output Power (W)

Figure 22: THD + N vs Output Power

Figure 23: THD + N vs Output Power

Figure 24: THD + N vs Output Power

1E-3

0.01

0.1

0.01

0.1

RL = 4

Ω, Vcc = 3.3V

Gv = 2

Cb = Cin = 1

µF

BW < 125kHz

Tamb = 25

°C

20kHz

20Hz

1kHz

Output Power (W)

1E-3

0.01

0.1

0.01

0.1

RL = 4

Ω, Vcc = 2.6V

Gv = 2

Cb = Cin = 1

µF

BW < 125kHz

Tamb = 25

°C

20kHz

20Hz

1kHz

Output Power (W)

1E-3

0.01

0.1

0.01

0.1

RL = 4

Ω, Vcc = 5V

Gv = 10

Cb = Cin = 1

µF

BW < 125kHz, Tamb = 25

°C

20kHz

20Hz

1kHz

Output Power (W)

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