TPA301DGN

Overview

The TPA301DGN is a mono audio power amplifier in an 8-pin HVSSOP package. It operates on a supply voltage range of 2.5 V to 5.5 V. Output power into an 8-ohm load is 700 mW at 5 V and 350 mW at 3.3 V. The device features Class AB operation with thermal and short-circuit protection. Shutdown mode quiescent current is 0.15 µA. Operating temperature range is -40°C to +85°C.

Feature Summary

• Bridge-tied load (BTL) configuration eliminates the need for external output coupling capacitors.
• Ultra-low shutdown mode current minimizes battery drain in portable applications.
• Integrated thermal and short-circuit protection ensures operational reliability.

Applications

• Low-voltage applications requiring internal speakers
• Small battery-powered equipment
• Cellular communications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest packaging information addendum. Confirm that the DGN designation corresponds to the HVSSOP package variant. Ensure the component status remains active for production use before finalizing procurement plans.

Selection Notes

Select this component for designs prioritizing reduced board space due to its compact surface-mount packaging. Consider the BTL architecture for improved power efficiency without bulky coupling capacitors. Evaluate thermal dissipation requirements based on the expected average listening levels and dynamic headroom needs.

Part Context

This part belongs to the TPA301 series of mono audio amplifiers. It shares core specifications with the TPA301D, differing primarily in the physical package type. The series is designed specifically for narrowband voice applications and low-voltage environments.

Replacement Considerations

TPA301D serves as a direct functional substitute when utilizing the SOIC package instead of HVSSOP. Verify pin compatibility and thermal characteristics during substitution.