TAS5121DKDG4

Overview

The TAS5121DKDG4 is a high-performance digital amplifier power stage designed to drive a 4-ohm speaker up to 100 W. It incorporates PurePath Digital technology and operates with a 3.3-V digital interface. The device delivers 80 W RMS into 4 ohms with less than 0.2% THD+N. Power stage efficiency exceeds 90% into a 4-ohm load. It features a thermally enhanced 36-pin PSOP3 package.

Feature Summary

• Integrates PurePath Digital technology for high-efficiency digital audio amplification
• Includes self-protecting design with overcurrent, overtemperature, and undervoltage protection
• Features a 3.3-V digital interface compatible with TI audio PWM processors
• Utilizes a thermally enhanced 36-pin PSOP3 package for conductive cooling

Applications

• DVD Receiver
• Home Theatre
• Mini/Micro Component Systems
• Internet Music Appliance

Procurement Notes

Verify the specific suffix DKDG4 against official Texas Instruments documentation to confirm exact packaging and temperature range specifications. Ensure compatibility with recommended system designs to maintain EMI compliance and optimal performance characteristics as defined in the datasheet.

Selection Notes

Select this component when designing systems requiring high-efficiency digital amplification with integrated protection. Ensure the application utilizes a compatible TI audio PWM processor and a properly designed passive demodulation filter to achieve specified audio performance and prevent overcurrent activation.

Part Context

This part belongs to the TAS5121 series of digital amplifier power stages from Texas Instruments. It is engineered to work in conjunction with PWM processors to deliver high-quality audio. The series is characterized by its ability to drive low-impedance loads efficiently while maintaining low distortion levels.

Replacement Considerations

Consult official Texas Instruments documentation for confirmed substitute part numbers. Verify pinout and thermal requirements before substitution.