TPA3118D2DAPR

Overview

The TPA3118D2DAPR is a stereo Class-D audio power amplifier manufactured by Texas Instruments. It operates on a single supply voltage ranging from 4.5V to 26V and delivers up to 30W of output power per channel into an 8Ω load. The device utilizes a 32-pin HTSSOP package with an exposed PowerPAD for thermal management. Key electrical specifications include a signal-to-noise ratio of 102dB, total harmonic distortion plus noise of 0.1% at 1kHz, and a power supply rejection ratio of 70dB. It functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Filter-free architecture eliminates the need for external LC output filters, reducing component count and board space.
• Integrated AM avoidance technology minimizes interference with AM radio reception during operation.
• Built-in SpeakerGuard protection circuitry safeguards speakers against damage from DC offset or short circuits.

Applications

• Active loudspeakers
• Soundbars
• Portable PA systems

Procurement Notes

Verify the specific suffix 'DAPR' to confirm the HTSSOP-32 package orientation and tape-and-reel packaging format. Ensure the design supports the required thermal dissipation via the exposed pad. Confirm that the application environment remains within the specified -40°C to +85°C operational temperature limits for reliable performance.

Selection Notes

Select this component for designs requiring high efficiency and minimal external filtering in stereo audio applications. It is suitable for battery-powered devices due to its wide supply voltage range and low quiescent current. Consider the thermal requirements of the HTSSOP-32 package when designing the PCB layout for adequate heat sinking.

Part Context

This part belongs to the TPA31xxD2 family of filter-free Class-D amplifiers from Texas Instruments. It shares architectural similarities with the TPA3116D2 but offers lower power output capabilities. The DAPR designation indicates a specific surface-mount package variant optimized for automated assembly processes in consumer electronics manufacturing.

Replacement Considerations

TPA3118D2DAP