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Datasheet

TDA8931
(Preliminary Specification)
14-Jan-05, 31 pages, 165 kB

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Power comparator 1x20 W

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General description

The TDA8931 is a switching power stage for high efficiency class-D audio power amplifier systems.

It contains a Single-Ended (SE) power stage, drive logic, protection control logic, a full differential input comparator and a HVP charger to charge the SE capacitor. With this amplifier a compact 1 x 20 W closed loop self-oscillating digital amplifier system can be built. The TDA8931 has a high efficiency so that a heat sink is not required up to 20 W (RMS). The system operates on an asymmetrical and a symmetrical supply voltage.

Features

  • High efficiency
  • Operating voltage asymmetrical from 12 V to 35 V
  • Operating voltage symmetrical from +-6 V to +-17.5 V
  • Thermally protected
  • No heat sink required
  • Charger for single-ended capacitor
  • No pop sound

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