TAS5110DAP

Overview

The TAS5110DAP is a true digital audio amplifier power stage from Texas Instruments, housed in a thermally enhanced 32-pin HTSSOP PowerPAD 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 3.3 V digital interface and accepts mono PWM inputs to drive an internal CMOS H-bridge. It incorporates Equibit technology for high efficiency exceeding 90%. Built-in protections include over-current, over-temperature, and under-voltage lockout.

Feature Summary

• Integrates two dedicated bootstrapped power supplies to minimize external high-voltage supply requirements while providing low-noise gate drive.
• Includes two on-chip low-dropout voltage regulators dedicated to half-bridges and gate drivers to reduce external component count.
• Features self-protecting design capabilities including short-circuit protection, over-temperature shutdown, and illegal PWM input state detection.
• Supports wire-ORed error reporting via open-drain outputs for fault conditions such as over-current and thermal warnings.

Applications

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

Procurement Notes

Verify the specific suffix 'DAP' corresponds to the 32-pin HTSSOP PowerPAD package with the thermal pad on the bottom. Confirm the operating temperature range matches commercial (0°C to 70°C) or industrial (-40°C to 85°C) requirements. Ensure compatibility with TAS50xx series PWM processors for proper system integration. Check datasheet revisions for any updates to recommended operating conditions or thermal methodologies.

Selection Notes

Select this component when designing systems requiring high-power digital amplification with minimal external power supply complexity. The integrated LDOs and bootstrap supplies simplify board layout compared to discrete solutions. Consider the thermal performance of the PowerPAD package and ensure adequate PCB copper area or heat sinking is available to dissipate heat effectively at maximum output power levels.

Part Context

The TAS5110 is part of Texas Instruments' Equibit family of true digital audio amplifiers. It is designed to work in conjunction with digital audio PWM processors like the TAS50xx series. This combination allows for high-fidelity audio reproduction with high efficiency, reducing the size of power supplies and heat sinks required in consumer audio applications.

Replacement Considerations

TAS5110DAD is a pin-compatible alternative using a TSSOP package with the thermal pad on top. TAS5110DAPR and TAS5110IDAP are tape and reel variants. Verify thermal management strategies differ between DAP and DAD packages due to pad orientation.