TPA102DGNR

Overview

The TPA102DGNR is a mono Class-AB audio amplifier with integrated headphone drive, manufactured by Texas Instruments. It operates from a single power supply ranging from 2.7V to 5.5V. The device delivers up to 300mW of output power into an 8-ohm load at 5V. Key electrical parameters include a maximum THD+N of 0.1% and a quiescent current of 4mA. It features a shutdown mode for low-power applications and utilizes an 8-pin VSSOP package.

Feature Summary

• Integrated high-current headphone driver capable of driving low-impedance loads directly
• Single-supply operation simplifies system design by eliminating the need for dual rails
• Shutdown mode significantly reduces power consumption in portable devices

Applications

• Mobile phone speaker and headphone amplification
• Portable media players and MP3 devices
• Personal digital assistants (PDAs)
• Handheld gaming consoles

Procurement Notes

Verify the specific suffix 'DGNR' corresponds to the tape-and-reel packaging variant when ordering. Confirm that the voltage requirements of the target application align with the 2.7V to 5.5V operating range. Ensure thermal management considerations are addressed for the VSSOP-8 package under maximum load conditions. Cross-reference the datasheet revision date to ensure compatibility with current design standards.

Selection Notes

Select this component for designs requiring a compact, single-supply solution for driving headphones or small speakers. It is suitable for battery-powered devices where power efficiency is critical due to its low quiescent current and shutdown capability. Consider the output power limitations relative to the load impedance and supply voltage when determining suitability for specific audio performance requirements.

Part Context

The TPA102 belongs to Texas Instruments' portfolio of low-voltage audio amplifiers designed for mobile consumer electronics. It addresses the need for high-quality audio playback in space-constrained handheld devices. The integration of the headphone driver reduces the bill of materials by eliminating external components typically required for such functions.

Replacement Considerations

Consult official Texas Instruments documentation for verified cross-reference part numbers. Ensure any substitute maintains compatible pinout, voltage range, and thermal characteristics.