TPA302D

Overview

The TPA302D is a stereo audio power amplifier manufactured by Texas Instruments. It delivers 300 mW of continuous average power into an 8-ohm load with less than 0.06% THD+N from a 5-V supply. The device operates on a single supply voltage ranging from 4.5 V to 5.5 V. It features a Class-AB output stage and includes built-in soft-start and pop-and-click suppression circuitry. The component is housed in an 8-pin SOIC package.

Feature Summary

• Integrated pop-and-click suppression for quiet startup and shutdown
• Soft-start capability to limit inrush current
• Low total harmonic distortion plus noise performance
• Single-supply operation simplifying system design

Applications

• Portable audio players
• Car audio systems
• Personal computers
• TVs and monitors

Procurement Notes

Verify the specific revision letter suffix against the manufacturer's latest datasheet to ensure compatibility with required pinouts and electrical characteristics. Confirm the package type matches the target PCB footprint. Check for any obsolescence notices or lifecycle status updates directly from Texas Instruments before finalizing procurement plans.

Selection Notes

Select this component for applications requiring low-power stereo amplification with minimal external components. It is suitable for battery-powered devices due to its efficient single-supply operation. Ensure the load impedance and supply voltage align with the specified 8-ohm and 5-V nominal parameters for optimal performance.

Part Context

This part belongs to the TPA302 family of audio amplifiers designed for consumer electronics. It serves as a compact solution for driving speakers in space-constrained portable devices. The series emphasizes ease of use and high audio fidelity within a small form factor, targeting cost-sensitive mass-market applications.

Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify pin-to-pin compatibility and electrical specifications before replacing.