TDA7491P datasheet(17/42 Pages) STMICROELECTRONICS

部件名	TDA7491P

功能描述	2 x 10-watt dual BTL class-D audio amplifier

PDF	42 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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17 / 42 page

TDA7491P

Characterization curves

Doc ID 13540 Rev 6

17/42

Figure 13.

Power dissipation and efficiency vs. output power

Figure 14.

Attenuation vs. voltage on pin MUTE

Figure 15.

Current consumption vs. voltage on pin STBY

Power di ssi pat i on & Ef f i ci ency vs Out put power

02468

Out put power per channel ( W)

0. 5

1. 5

2. 5

3. 5

4. 5

Vcc=10V

Rload=4ohm

Gain=30dB

f=1kHz

Test Condition:

Vcc =10V,

RL= 4 ohm,

Rosc = 39k

Ω, Cosc = 100nF,

f = 1kHz,

Gv=30dB,

Tamb=25

℃

Test Condition:

Vcc =10V,

RL= 4 ohm,

Rosc = 39k

Ω, Cosc = 100nF,

0dB@f=1kHz,Po=1w,

Gv=30dB,

Tamb=25

℃

-90

-80

-70

-60

-50

-40

-30

-20

-10

Mute voltage (V)

Vcc=10V

Rload=4ohm

Gain=30dB

0dB@f=1kHz, Po=1w

Test Condition:

Vcc =10V,

RL= 4 ohm,

Rosc = 39k

Ω, Cosc = 100nF,

Vin=0,

Gv=30dB,

Tamb=25

℃

0.5

1.5

2.5

3.5

Standby voltage (V)

Vcc=10V

Rload=4ohm

Gain=30dB

Vin=0

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