TPA032D02DCARG4

Overview

The TPA032D02DCARG4 is a stereo Class-D audio power amplifier in a 48-pin PowerPAD TSSOP package. It delivers 10 W per channel into 4 Ω loads at 12 V with 0.5% THD+N, or 7.5 W into 8 Ω. Operating from 8 V to 14 V supplies, it features bridge-tied load outputs eliminating coupling capacitors. The device includes thermal and under-voltage protection with fault status feedback.

Feature Summary

• Bridge-tied load configuration eliminates external output coupling capacitors
• Integrated thermal and under-voltage lockout protection with open-drain fault status feedback
• Low shutdown current of 20 µA for battery-powered applications
• Thermally enhanced PowerPAD surface-mount packaging

Applications

• High-fidelity audio systems requiring efficient stereo amplification
• Battery-powered portable audio equipment
• Home theater and multimedia speaker systems

Procurement Notes

Verify the G4 suffix indicates lead-free and RoHS compliance. Confirm the R suffix denotes tape-and-reel packaging rather than tube. Ensure the DCA designator matches the required 48-pin PowerPAD TSSOP footprint. Check datasheet revisions for any pinout or electrical characteristic updates before finalizing designs.

Selection Notes

Select this component for stereo applications requiring high efficiency and low heat dissipation. The differential input architecture minimizes distortion. Ensure adequate PCB copper area for the PowerPAD thermal pad to manage junction temperatures. Verify that the supply voltage range aligns with the system's 8 V to 14 V capability.

Part Context

This part belongs to the TPA032 family of monolithic Class-D amplifiers. It shares architectural similarities with the TPA032D01 mono variant but provides dual-channel output. The device utilizes high-speed power DMOS transistors for efficient signal replication through high-frequency switching.

Replacement Considerations

TPA032D02DCA (Tube version)

FAQ

How does the device handle fault conditions?

The TPA032D02 uses two open-drain fault pins (FAULT0 and FAULT1) to indicate charge pump under-voltage or thermal faults. Normal operation resumes automatically after the condition clears, though the fault pins require cycling MUTE, SHUTDOWN, or power to reset.

What is the purpose of the differential inputs?

The differential inputs minimize distortion by biasing the signal to a 1.5 V DC level. DC-blocking capacitors are required on all four input terminals to maintain proper biasing and optimal performance.