TAS5110DADR

Overview

The TAS5110DADR is a high-performance true digital audio amplifier power stage manufactured by Texas Instruments. It operates in a 32-pin TSSOP surface-mount package with an exposed thermal pad. The device delivers up to 50 W RMS into a 6-ohm load at 10% THD and 40 W RMS at 0.1% THD. It accepts a mono PWM 3.3-V input and controls an internal CMOS H-bridge. Operating temperatures range from 0°C to 70°C for the commercial grade.

Feature Summary

• Incorporates Equibit technology for high-power, true digital audio amplification with efficiency exceeding 90%.
• Features self-protecting design including over-current, over-temperature, and under-voltage protections.
• Accepts a 3.3-V digital interface and utilizes bootstrapped gate drive for internal H-bridge control.

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 'R' indicates tape and reel packaging when sourcing this component. Confirm that the commercial temperature range (0°C to 70°C) aligns with your system requirements, as industrial variants exist. Ensure proper thermal management is designed around the exposed PowerPAD for optimal performance.

Selection Notes

Select this component for applications requiring high-efficiency digital amplification driven by a separate PWM processor like the TAS50xx series. Consider the 32-pin TSSOP package constraints and the necessity of external L-C reconstruction filters. Evaluate thermal dissipation needs based on the target load impedance and supply voltage levels.

Part Context

This part belongs to the TAS5110 family of True Digital Audio Amplifier (TDAA) power stages. It is designed to work in conjunction with TI's digital audio PWM processors to deliver stereo or multi-channel audio. The DADR variant specifically denotes the commercial temperature range and tape-and-reel packaging format.

Replacement Considerations

TAS5110DAP

FAQ

What is the function of the RESET pin?

The active-low RESET pin forces the H-bridge outputs to a low-low state and resets the short-circuit protection latch. It must be asserted low for at least 1 ms after output power is applied during power-up.

How does the device handle illegal PWM input states?

Detection of an illegal PWM input state or loss of clocking signal causes the SHUTDOWN pin to go low and sets the H-bridge outputs to a low-low state. This condition does not latch the shutdown but returns to normal operation once the error ends.