TAS5614PHDR

Overview

The TAS5614PHDR is a high-performance Class D audio power amplifier from Texas Instruments, housed in a 64-pin HTQFP package. It delivers up to 150W per channel in stereo BTL mode into 4Ω loads and up to 300W per channel in PBTL mode into 2Ω loads. The device operates with a PVDD supply range of 18V to 38V and features PurePath HD integrated closed-loop feedback technology. Key electrical specifications include an ultralow THD+N of 0.03% at 1W into 4Ω and a signal-to-noise ratio exceeding 100dB.

Feature Summary

• PurePath HD integrated closed-loop feedback technology for high-fidelity audio performance
• Configurable output stages supporting stereo BTL, mono PBTL, and single-ended modes
• Built-in self-protection mechanisms including undervoltage, overtemperature, clipping, and short-circuit detection

Applications

• Home theater systems
• AV receivers
• Active speakers and subwoofers

Procurement Notes

Verify component authenticity through authorized channels as the datasheet indicates production processing does not necessarily include testing of all parameters. Confirm that the specific PHD package variant matches the required thermal interface material and PCB layout guidelines for optimal heat dissipation. Ensure system design adheres to recommended decoupling capacitor values and output filter schematics to maintain EMI compliance and audio performance standards.

Selection Notes

Select this component when designing high-power audio applications requiring analog inputs and robust protection features. The 64-pin QFP package is suitable for designs needing extensive thermal coupling via the exposed heatslug. Consider the internal voltage regulator simplifying the power supply architecture by reducing the need for external logic supplies. Evaluate thermal management requirements carefully, as achievable output power depends heavily on the application's thermal configuration.

Part Context

This part belongs to the TAS5614 series of PurePath HD digital-input power stages. It is pin-compatible with other devices in the family such as the TAS5631, TAS5616, and TAS5612, facilitating potential design upgrades or replacements within existing hardware architectures while maintaining form factor compatibility.

Replacement Considerations

Public confirmed substitute part numbers: TPA3223DDVR.