TPA122DR

Overview

The TPA122DR is a stereo Class-AB audio amplifier manufactured by Texas Instruments, designed for headphone applications. It operates on a single power supply ranging from 2.5 V to 5.5 V and delivers up to 70 mW of output power per channel into an 8-ohm load. The device features a shutdown mode to minimize current consumption during idle periods. It is housed in an 8-pin SOIC package suitable for surface-mount assembly.

Feature Summary

• Stereo Class-AB architecture optimized for low-voltage headphone driving
• Integrated shutdown control for reduced standby power consumption
• Single-supply operation compatible with standard portable voltage rails

Applications

• Portable media players
• Mobile handsets
• Personal digital assistants

Procurement Notes

Verify the specific suffix 'DR' corresponds to the SOIC-8 tape-and-reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure thermal management aligns with the specified operating temperature range for the target application environment.

Selection Notes

Select this component when a dual-channel solution is required for stereo audio paths within compact form factors. The integrated shutdown feature supports battery-powered designs requiring efficient power management. Verify that the 70 mW per channel output capability meets the impedance requirements of the connected transducers.

Part Context

This part belongs to the TPA122 family of audio amplifiers. It serves as a surface-mount alternative to through-hole variants like the TPA122D. The DR suffix specifically denotes the SOIC-8 reel packaging format used for automated assembly processes.

Replacement Considerations

The TPA122DGNR is a pin-compatible alternative featuring an HVSSOP-8 package. Both devices share identical electrical characteristics and functionality, differing only in physical footprint dimensions.