TPA3112D1QPWPRQ1

Overview

The TPA3112D1QPWPRQ1 is a single-channel Class-D audio power amplifier from the SpeakerGuard series, manufactured by Texas Instruments. It delivers up to 25 W of continuous output power into an 8-ohm load with a supply voltage range of 8 V to 26 V. The device features a total harmonic distortion plus noise (THD+N) of 0.05% and operates within a temperature range of -40°C to +125°C. Packaged in a 28-pin HTSSOP, it is AEC-Q100 qualified for automotive applications.

Feature Summary

• Integrated SpeakerGuard protection system providing comprehensive safeguards against short circuits, over-temperature conditions, and pop-and-click noise during power transitions.
• Supports differential input signals to enhance noise immunity and signal integrity in electrically noisy environments.
• Includes a shutdown mode feature that significantly reduces current consumption when the amplifier is not in active use.

Applications

• Automotive infotainment systems
• Vehicle speaker integration
• In-car audio amplification

Procurement Notes

Verify the complete part number including the Q1 suffix to confirm automotive qualification status. Ensure the package type matches the required 28-HTSSOP footprint. Confirm RoHS compliance and moisture sensitivity level requirements before ordering. Cross-reference the manufacturer datasheet for specific handling instructions related to humidity-sensitive devices.

Selection Notes

Select this component for designs requiring high-efficiency mono audio amplification in automotive environments. It is suitable for applications needing robust thermal and electrical protection without external filtering components. Consider the 28-pin package size for PCB layout constraints. Verify that the supply voltage aligns with the vehicle's electrical architecture.

Part Context

This device belongs to the TPA3112 family of Class-D audio amplifiers. It shares core functionality with non-automotive variants but includes extended temperature ratings and reliability testing consistent with AEC-Q100 standards. The SpeakerGuard technology distinguishes it by offering integrated protection mechanisms typically requiring external circuitry in other amplifier classes.

Replacement Considerations

The TPA3112D1PWPR is the commercial grade equivalent. The TPA3111D1QPWPRQ1 offers lower power output at 10 W. Substitution requires verifying package compatibility and ensuring the alternative meets the specific automotive qualification requirements if applicable.