TAS5110ADAD

Overview

The TAS5110ADAD is a true-digital audio amplifier power stage from Texas Instruments, housed in a 32-pin PowerPAD HTSSOP package. It delivers up to 50 W RMS into a 6-ohm load at 10% THD and 40 W RMS at 0.1% THD. The device operates with a digital supply voltage of 3 V to 3.6 V and requires high-voltage supplies between 16.5 V and 26.5 V for the H-bridge. It features a 3.3-V digital interface accepting PWM inputs and includes built-in overcurrent, overtemperature, and undervoltage protections.

Feature Summary

• Integrates two internal CMOS H-bridges controlled by differential PWM signals for stereo audio output.
• Includes self-protecting circuitry that monitors for short circuits, overtemperature, and low regulator voltages.
• Features on-chip low-dropout voltage regulators to minimize external power supply requirements.
• Provides open-drain error reporting pins to indicate fault conditions such as illegal input states or thermal warnings.

Applications

• DVD Receivers
• Home Theater Systems
• Mini/Micro Component Systems
• Internet Music Appliances
• Car Audio Amplifiers and Head Units

Procurement Notes

Verify component status before design integration, as this part may be classified as Not Recommended for New Designs (NRND). Confirm that the selected PCB layout supports the thermal requirements of the PowerPAD package to ensure reliable operation at maximum power levels. Ensure compatibility with the required TAS50xx PWM processor for proper system functionality.

Selection Notes

Select this component when a high-efficiency digital amplification solution is required for stereo audio applications. It is suitable for designs needing up to 50 W per channel into 6-ohm loads. Consider the thermal management capabilities of the target enclosure, as adequate heat dissipation is necessary to maintain performance. Verify that the system architecture can accommodate the necessary LC reconstruction filters and bootstrap capacitors.

Part Context

The TAS5110ADAD belongs to the Equibit family of True Digital Audio Amplifiers. It is designed to work in conjunction with Texas Instruments TAS50xx series digital audio PWM processors. This combination allows for high-power amplification with total harmonic distortion plus noise below 0.09%. The device utilizes PurePath Digital technology to achieve efficiency greater than 90%, reducing the size of power supplies and heat sinks.

Replacement Considerations

TAS5110ADADRG4 is a lead-free variant of the same component. Both are listed as NRND. No direct functional replacements are documented in the provided datasheet; consult Texas Instruments for current alternatives.