TDA7491P STMicroelectronics, TDA7491P Datasheet - Page 12

• Manufacturer Part Number: TDA7491P
• Description: IC, AMP, AUDIO, CLASS D, 36POWERSO
• Manufacturer: STMicroelectronics

Specifications of TDA7491P

• Amplifier Class: D
• No. Of Channels: 2
• Output Power: 10W
• Supply Voltage Range: 5V To 18V
• Thd + N: 0.1% @ 1W, 6ohm, VCC=11V
• Load Impedance: 8ohm
• Operating Temperature Range: 0°C To +70°C
• Rohs Compliant: Yes

Characterization curves
4
4.1
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Characterization curves
The following characterization curves were made using the TDA7491P demo board. The
LC filter for the 4-Ω load uses components of 15 µH and 470 nF, whilst that for the 6-Ω load
uses 22 µH and 220 nF and that for the 8-Ω load uses 33 µH and 220 nF.
All other test conditions are given along side the corresponding curves.
With 4-Ω load at V
Figure 3.
Figure 4.
THD vs output power (1 kHz)
THD vs output power (100 Hz)
Test Condition:
Vcc=10V,
RL=4 ohm,
Rosc=39kΩ, Cosc=100nF,
f =1kHz,
Gv=30dB,
Tamb=25℃
Test Condition:
Vcc=10V,
Rosc=39kΩ, Cosc=100nF,
f =100Hz,
Gv=30dB,
Tamb=25℃
Specification Limit:
Typical:
10W @ THD=10%
Specification Limit:
Typical:
Po=10W @ THD=10%
RL=4 ohm,
CC
Doc ID 13540 Rev 4
= 10 V
0.005
0.05
0.02
0.01
0.05
0.02
0.01
0.5
0.2
0.1
0.5
0.2
0.1
10
100m
10
100m
5
2
1
THD (%)
5
2
1
THD (%)
200m
200m
500m
500m
Output Power (W)
Output Power (W)
1
1
2
2
5
5
10
10
TDA7491P