Tuesday, September 9, 2014

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TDA8927 TDA8929 Audio Amplifier 2x80W

TDA8927/TDA8929 general description:

The TDA8927 is the switching power stage of a two-chip set for a high efficiency class-D audio power amplifier system. The system is split into two chips:
TDA8927J/ST/TH; a digital power stage in a DBS17P,
RDBS17P or HSOP24 power package
TDA8929T; the analog controller chip in a SO24package.

With this chip set a compact 2 × 80 W audio amplifier system can be built, operating with high efficiency and very low dissipation. No heatsink is required, or depending on supply voltage and load, a very small one. The system operates over a wide supply voltage range from ±15 up to ±30 V and consumes a very low quiescentcurrent.

TDA8927/TDA8929 features:

  • High efficiency (>94%)
  • Operating voltage from ±15 to ±30 V
  • Very low quiescent current
  • High output power
  • Short-circuit proof across the load, only in combination with controller TDA8929T
  • Diagnostic output
  • Usable as a stereo Single-Ended (SE) amplifier or as a mono amplifier in Bridge-Tied Load (BTL)
  •  Electrostatic discharge protection (pin to pin)
  • Thermally protected, only in combination with controller TDA8929T.

TDA8927/TDA8929 applications:

  • Television sets
  • Home-sound sets
  • Multimedia systems
  • All mains fed audio systems
  • Car audio (boosters).

TDA8927/TDA8929 circuit diagram:


TDA8927/TDA8929 layout and pcb:





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