TPA0222PWP

Overview

The TPA0222PWP is a stereo Class-AB audio power amplifier in a 24-pin PowerPAD TSSOP package. It delivers 2.6 W per channel into 3 Ω loads and operates on a single 4.5 V to 5.5 V supply. The device features four selectable BTL gain settings (2, 6, 12, 24 V/V) via GAIN0/GAIN1 pins, with SE mode fixed at 1 V/V for headphone drive. It includes an internal input MUX, PC-Beep input, depop circuitry, and low shutdown current of 150 µA.

Feature Summary

• Integrated input multiplexer allows selection between line and headphone inputs
• Internal gain control eliminates external resistors for configuration
• Depop circuitry minimizes speaker transients during startup or shutdown
• PowerPAD thermal enhancement provides high heat dissipation in surface-mount form factor

Applications

• Notebook computer audio systems
• PC desktop line-out circuits
• Portable audio devices requiring integrated gain and mux control

Procurement Notes

Verify the specific suffix R if tape-and-reel packaging is required, as the base PWP denotes tube packaging. Confirm RoHS compliance status through official documentation. Check for obsolescence notices as this component was released in 1999. Ensure thermal pad soldering guidelines are followed for optimal performance.

Selection Notes

Select this part for designs requiring integrated gain setting and input switching without external components. The PowerPAD package is suitable for applications needing high power density in a small footprint. Verify that the load impedance matches the specified 3 Ω or 8 Ω requirements for optimal power output.

Part Context

This device belongs to Texas Instruments' TPA0222 series of stereo audio amplifiers. It is designed specifically for notebook and portable PC applications where board space is limited. The PowerPAD technology distinguishes it from standard TSSOP packages by offering superior thermal management capabilities comparable to larger through-hole packages.

Replacement Considerations

TPA0222PWPR is the tape-and-reel version of the same device. No direct functional replacements are documented in the provided datasheet.