TPA0243DGQG4

Overview

The TPA0243DGQG4 is a 2-W mono bridge-tied-load (BTL) audio power amplifier with integrated stereo headphone drive, manufactured by Texas Instruments. It operates on a supply voltage range of 2.5 V to 5.5 V and delivers 2 W into a 4-Ω load at 5 V, or 0.6 W at 3 V. The device features low supply current consumption of 10 mA typical at 5 V and 9 mA at 3 V, with shutdown current as low as 1 µA. It utilizes a space-saving, thermally-enhanced 10-pin MSOP package (DGQ) and supports an operating temperature range from -40°C to 85°C.

Feature Summary

• Configurable output topology allowing dynamic switching between BTL mono speaker drive and stereo single-ended headphone drive.
• Integrated pop-and-click suppression circuitry combined with TTL-compatible shutdown control for efficient power management.
• High-impedance CMOS inputs designed to function as summing nodes for combining left and right audio channels.

Applications

• Notebook computers requiring compact audio solutions
• Personal Digital Assistants (PDAs)
• Digital personal audio players

Procurement Notes

Verify the specific ordering suffix G4 indicates lead-free compliance and RoHS standards when sourcing. Confirm the DGQ package designation matches the required 10-pin thermally enhanced MSOP footprint. Ensure design compatibility with the specified 2.5 V to 5.5 V supply range and verify thermal dissipation requirements for the target application environment.

Selection Notes

Select this component for designs necessitating a single-chip solution for both speaker amplification and headphone driving. The internal gain configuration allows flexibility via external input resistors. Consider the thermally enhanced PowerPAD package for improved heat dissipation in enclosed portable devices compared to standard plastic packages.

Part Context

This part belongs to the TPA0243 family of audio power amplifiers from Texas Instruments. The base model TPA0243 provides the core functionality, while the DGQ suffix specifies the 10-pin PowerPAD MSOP package. The G4 suffix typically denotes environmental compliance attributes such as lead-free manufacturing processes.

Replacement Considerations

TPA0243DGQ