DocID024368 Rev 3

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STPA002

Overview

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1

Overview

The STPA002 is a complementary quad audio power amplifier. It is available in two different

packages, Flexiwatt25 and Flexiwatt27. It embeds four independent amplifiers working in

class AB, a standby, a mute pin and an offset detector output. In the Flexiwatt27 package

also a clipping detection pin with diagnostics information is available. The amplifier is fully

operational down to a battery voltage of 6 V, without producing pop noise and continuing to

play during battery transitions.

The STPA002 can drive 2 ohm loads and has a very high immunity to disturbs without need

of external components or compensation. It is protected against any kind of short or open

circuit, over-voltage and over-temperature.

1.1

Block diagram

Figure 1. Block diagram