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Consumer Electronics by S. P. Bali

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SMALL HIGH-POWER AMPLIFIER INCORPORATING IC-TDA2030

The TDA2030 is a complete amplifier contained in a single IC with a five pin-pentawatt package. Its class AB output stage can provide a power of 14 W into 4 Ω at a supply voltage of + 14 V

The amplifier has a built-in short circuit and overload protection and also a thermal shutdown. This means that it is not so easy to destroy the IC as long as the supply voltage is kept below the absolute maximum of + 14 V.

Combining two 2030s with a few inexpensive power transistors can form an amplifier that can drive quite a lot of power into a load of 2 to 4 Ω. As illustrated in Fig. 20.16 the circuit is a standard ‘bridge’ amplifier. Each half of the bridge consists of a TDA2030 driving two complementary ...

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