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 × 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
Applications
- Flat panel television sets
- Flat panel monitors
- Multimedia systems
- Wireless speakers
- Micro systems
Circuit Diagram
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| 20W power amplifier TDA8931 circuit diagram |
