TPA301DGNRG4

Overview

The TPA301DGNRG4 is a mono audio power amplifier in an 8-pin HVSSOP package. It operates on a 2.5 V to 5.5 V supply and delivers 350 mW into an 8 Ω load at 5 V, or 250 mW at 3.3 V. The device features bridge-tied load (BTL) architecture, eliminating output coupling capacitors. Shutdown mode reduces quiescent current to 0.15 µA. It includes thermal and short-circuit protection.

Feature Summary

• Bridge-tied load configuration for increased power efficiency without external coupling capacitors
• Ultra-low shutdown current for battery-powered applications
• Integrated thermal and short-circuit protection mechanisms

Applications

• Low-voltage portable audio equipment
• Cellular communication devices with internal speakers
• Battery-operated handheld electronics

Procurement Notes

Verify the GNRG4 suffix indicates RoHS compliance and tape-and-reel packaging. Confirm the DGN package variant matches the required board layout. Ensure the component status remains active for production use. Cross-reference the datasheet revision date against manufacturing requirements.

Selection Notes

Select this component for narrowband voice applications requiring low voltage operation. The BTL design simplifies PCB layout by removing large blocking capacitors. Consider thermal dissipation limits when operating near maximum power levels. Verify input impedance matching for desired gain settings.

Part Context

This part belongs to the TPA301 family of mono audio amplifiers from Texas Instruments. It is designed specifically for low-voltage systems where space and power consumption are critical constraints. The family supports both SOIC and PowerPAD MSOP packages for different thermal and size requirements.

Replacement Considerations

TPA301DGNR is the direct reel version of the tube-packed TPA301DGN. Both share identical electrical characteristics and pinouts. Verify package compatibility before substitution.