Description

The TDA8929T is a two-chip set for a high efficiency class-D audio power amplifier system. The system consists of the TDA8929T analog controller chip and the TDA8926J/ST/TH or TDA8927J/ST/TH digital power stage chip. The TDA8929T is available in a SO24 package.

Specifications and features

• Operating voltage: ±15 to ±30 V
• Very low quiescent current
• Low distortion
• Fixed gain of 30 dB Single-Ended (SE) or 36 dB Bridge-Tied Load (BTL)
• Good ripple rejection
• Internal switching frequency can be overruled by an external clock
• No switch-on or switch-off plop noise
• Diagnostic input for short-circuit and temperature protection
• Usable as a stereo Single-Ended (SE) amplifier or as a mono amplifier in Bridge-Tied Load (BTL)
• Start-up safety test, to protect for short-circuits at the output of the power stage to supply lines
• Electrostatic discharge protection (pin to pin)

Application Scenarios

The TDA8929T can be used in various audio power amplifier applications, including stereo Single-Ended (SE) amplifiers or mono amplifiers in Bridge-Tied Load (BTL) configurations. It is suitable for high efficiency and low distortion audio systems.

Comparison

• High efficiency
• Low distortion
• Good ripple rejection
• Internal switching frequency can be overruled by an external clock
• No switch-on or switch-off plop noise
• Diagnostic input for short-circuit and temperature protection
• Electrostatic discharge protection

• Requires external power stage chip
• Limited operating voltage range