TPA3128D2DAP

Audio Amplifiers Overview

The TPA3128D2DAP is a stereo Class-D audio amplifier from Texas Instruments, housed in a 32-pin HTSSOP package. It delivers 30 W per channel into an 8 Ω load at 24 V supply voltage. The device operates on a single power supply ranging from 4.5 V to 26 V. Key electrical parameters include a gain of 36 dB, a slew rate of 10 V/ms, and a total harmonic distortion plus noise (THD+N) of 0.1%. Quiescent current is less than 23 uA with recommended LC filters. Operating temperature ranges from -40 °C to +85 °C.

Audio Amplifiers Feature Summary

• High-efficiency D-class architecture exceeding 90% power conversion efficiency, eliminating the need for external heat sinks in typical applications.
• Integrated adaptive modulation mechanism that reduces requirements for RC buffers based on output power levels.
• Comprehensive self-protection circuitry featuring overvoltage, undervoltage, thermal shutdown, DC detection, and short-circuit protection with fault reporting capabilities.

Audio Amplifiers Applications

• Bluetooth speakers
• Wireless audio systems
• Portable battery-powered audio devices

Audio Amplifiers Procurement Notes

Verify the specific suffix 'DAP' against the manufacturer datasheet to confirm the exact tape-and-reel or tube packaging configuration. Ensure the component matches the required operating temperature range and pinout compatibility for your PCB layout. Cross-reference the ordering part number with official distributor catalogs to avoid substitutions with different package variants.

Audio Amplifiers Selection Notes

Select this component when high power density and low static power consumption are critical for portable designs. The wide 4.5 V to 26 V input range supports various battery configurations and fixed adapters. Consider the integrated protection features for robust system reliability without complex external monitoring circuits.

Audio Amplifiers Part Context

This device belongs to the TPA3128D2 series of efficient stereo digital amplifiers. It utilizes SpeakerGuard technology and supports parallel bridge-tied load (PBTL) modes for higher mono power outputs. The family is designed for applications requiring high fidelity and minimal thermal management overhead.

Audio Amplifiers Replacement Considerations

Consult the manufacturer's cross-reference guide for verified substitutes. Ensure any replacement maintains the same 32-pin HTSSOP footprint and compatible control interface specifications.