TPA721DG4

Overview

The TPA721DG4 is a high-performance mono Class-AB audio amplifier manufactured by Texas Instruments. It delivers 700 mW of output power and operates from a single supply voltage ranging from 2.5 V to 6 V. The device features an active-high shutdown mode with a typical supply current of 7 µA, making it suitable for power-sensitive applications. It is housed in an 8-pin SOIC package.

Feature Summary

• Integrates depop, short-circuit, and thermal protection circuits for reliable operation
• Supports active-high shutdown mode to minimize power consumption
• Operates on a single supply voltage without requiring external coupling capacitors

Applications

• Audio amplifiers for consumer electronics such as home stereos
• Speaker systems for portable devices
• Headphone amplification circuits

Procurement Notes

Verify the component status before procurement as availability may vary. Confirm that the 8-pin SOIC package matches your PCB footprint requirements. Ensure the design supports the specified single-supply voltage range of 2.5 V to 6 V. Check for RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component for applications requiring a compact mono audio solution with built-in protection features. It is appropriate for designs where low quiescent current in shutdown mode is critical. Consider the thermal performance within the SOIC package when determining heat dissipation needs for continuous 700 mW output.

Part Context

The TPA721DG4 belongs to Texas Instruments' high-performance analog audio amplifier family. It is designed to provide efficient audio reproduction in space-constrained environments. The DG4 suffix indicates a lead-free and RoHS-compliant variant of the standard TPA721D device, adhering to environmental regulations.

Replacement Considerations

Direct substitutes include the TPA721D. Verify pin compatibility and electrical specifications when replacing components in existing designs.