TDA8929T/N1,118

Overview

The TDA8929T is a controller for a two-chip Class-D audio amplifier system, manufactured by NXP USA Inc. It operates with a supply voltage range of ±15 V to ±30 V and features a fixed gain of 30 dB in Single-Ended (SE) configuration or 36 dB in Bridge-Tied Load (BTL) mode. The device includes differential audio inputs, an internal oscillator with external clock tracking capability, and diagnostic inputs for temperature and current protection. Packaged in a 24-SO plastic small outline package, it supports stereo SE or mono BTL configurations.

Feature Summary

• Controller for high-efficiency Class-D audio power amplifier systems
• Fixed closed-loop voltage gain: 30 dB (SE) or 36 dB (BTL)
• Differential audio inputs for high common-mode rejection
• Diagnostic inputs for short-circuit and temperature protection

Applications

• Television sets
• Home-sound sets
• Multimedia systems
• Car audio boosters

Procurement Notes

Verify the component status as this datasheet is a preliminary specification from December 2001. Confirm compatibility with the intended digital power stage, such as the TDA8926J/ST/TH or TDA8927J/ST/TH, as the TDA8929T functions only as the controller within the two-chip set architecture.

Selection Notes

Select the TDA8929T when designing a compact Class-D amplifier requiring high efficiency and low quiescent current. Ensure the design accommodates the required ±15 V to ±30 V supply rails. For applications requiring multiple synchronized amplifiers, utilize the external clock input on pin OSC to align switching frequencies.

Part Context

The TDA8929T serves as the analog controller chip in a two-chip Class-D audio amplifier system. It must be paired with a digital power stage, specifically the TDA8926 or TDA8927 series, to function. This combination allows for the construction of compact 2x50 W or 2x100 W audio amplifier systems with minimal heat dissipation requirements.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.