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TDA7482: Single Chip 25 Watt Mono Class-D Audio Power Amplif

2015-03-22 22:16  
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This class-D audio power amplifier is suitable for TV and home stereo set. TDA7882 IC chip provides class-D audio power amplifier solution. Since this chip has only mono channel, you need two pieces of this circuit for stereo application. The power supply voltage is flexible, accept ( -)10V to ( -)25V. This circuit needs a split supply (symmetric power supply). Here are the main features of this class-D amplifier:

 

25W OUTPUT POWER: RL = 8 ohm/4 ohm; THD = 10%HIGH EFFICIENCYWIDE SUPPLY VOLTAGE RANGE (UP TO ±25V)SPLIT SUPPLYOVER-VOLTAGE PROTECTIONST-BY AND MUTE FEATURESSHORT CIRCUIT PROTECTIONTHERMAL OVERLOAD PROTECTION

Here is the schematic diagram of this class-D amplifier circuit:

25w class d amplifier circuit schematic

[Circuit's schematic diagram source: ST MicroelectronicsTDA7482 Data Sheet]



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