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TDA7491MV Folha de dados(PDF) 11 Page - STMicroelectronics

Nome de Peças TDA7491MV
Descrição Electrónicos  25 W mono BTL class-D audio amplifier
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7491MV Folha de dados(HTML) 11 Page - STMicroelectronics

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TDA7491MV
Characterization curves
Doc ID 14576 Rev 2
11/28
4
Characterization curves
The following characterization curves were made using the TDA7491MV demo board. The
LC filter for the 8-
Ω load uses components of 33 µH and 220 nF.
All other test conditions are given along side the corresponding curves.
Figure 3.
Output power vs supply voltage
Figure 4.
THD vs output power (1 kHz)
Test Condition :
Vcc = 5~18V,
RL = 8 ohm,
Rosc =39kO, Cosc =100nF,
f =1kHz,
Gv =30dB,
Tamb =25
℃
Specification Limit:
Typical:
Vs =18V,Rl = 8 ohm
Po =20W @THD =10%
Po =16W @THD =1%
Output Power vs. Supply Voltage(8 ohm)
0
2
4
6
8
10
12
14
16
18
20
22
5 6
7 8
9 10 1112 1314 1516 1718
Supply Voltage (V)
Output Power vs. Supply Voltage(8 ohm)
0
2
4
6
8
10
12
14
16
18
20
22
5 6
7 8
9 10 1112 1314 1516 1718
Supply Voltage (V)
THD =10%
Rl =8 ohm
f =1kHz
THD =1%
THD (%)
Output Power (W)
0.005
10
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
100m
30
200m
500m
1
2
5
10
20
Test Condition:
Vcc =18V,
RL= 8 ohm,
Rosc =39k
Ω, Cosc =100nF,
f =1kHz,
Gv =30dB,
Tamb =25
℃
Specification Limit:
Typical:
Po =20W @ THD =10%


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