Overview

STPA008

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DocID027887 Rev 2

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Overview

STPA008 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 and a mute pin, an offset detector and, only for the Flexiwatt27

package, a clipping detector and diagnostics output. The amplifier is fully operational down

to a battery voltage of 6 V, without producing pop noise and continuing to play during battery

transitions.

STPA008 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.

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Block diagram and application circuit

Figure 1. Block diagram