TPA3007D1PWRG4

Overview

The TPA3007D1PWRG4 is a mono bridge-tied load (BTL) Class D audio power amplifier manufactured by Texas Instruments. It delivers 6.5W of output power into an 8-ohm load with high efficiency exceeding 85% at 12V supply, eliminating the need for heat sinks. The device operates on a single supply voltage ranging from 8V to 18V and features digital gain control via GAIN0 and GAIN1 pins, offering selectable gains of 12dB, 18dB, 23.6dB, or 36dB. It includes differential inputs for improved common-mode rejection, depop circuitry to reduce startup pops, and comprehensive protection against short circuits, thermal overload, and overcurrent.

Feature Summary

• Digital gain control allows configuration through two input terminals for flexible system integration.
• High efficiency operation reduces thermal requirements and eliminates the need for external heat sinks.
• Integrated depop circuitry minimizes audible noise during power-up and shutdown cycles.
• Differential input stage provides enhanced immunity to power supply noise and interference.

Applications

• Powered speaker systems
• Audio amplification modules
• Consumer electronics requiring efficient mono audio output

Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and lead-free construction as per Texas Instruments standards. Confirm the package type matches the required PCB footprint, typically 24-TSSOP. Ensure the design supports the specified 8V to 18V supply range and that the selected gain configuration aligns with the source signal levels. Check for any recent product change notices affecting pinout or electrical characteristics.

Selection Notes

Select this component when a mono BTL amplifier with digital gain adjustment is required. It is suitable for applications where space constraints prevent the use of large heat sinks due to its high efficiency. Consider the available gain settings to match the input sensitivity of the preceding audio stage. Ensure the load impedance is compatible with the 8-ohm specification for optimal power delivery.

Part Context

This part belongs to the TPA3007 family of Class D audio amplifiers. The TPA3007D1 variant specifically offers digital gain control, distinguishing it from fixed-gain counterparts. The PWRG4 suffix denotes the surface-mount package and environmental compliance. It is designed for direct drive of speakers without complex output filtering, relying primarily on ferrite beads for EMI suppression.

Replacement Considerations

Direct substitutes may include other TPA3007 series variants if gain control is not critical. Verify compatibility regarding package dimensions and pin assignments. Ensure replacement parts maintain similar efficiency and protection features for equivalent thermal management.