TPA0243DGQR

Overview

The TPA0243DGQR is a 2-W mono bridge-tied-load (BTL) audio power amplifier with integrated headphone drive, manufactured by Texas Instruments. It operates on a supply voltage range of 3 V to 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 of 10 mA typical at 5 V and shutdown current of 1 µA typical. It utilizes a 10-pin thermally enhanced MSOP package (DGQ) and supports an operating temperature range from -40°C to 85°C.

Feature Summary

• Configurable stereo headphone drive and mono speaker output via mode selection
• TTL-compatible shutdown control for system power management
• Wide power supply compatibility supporting 3 V to 5 V operation
• Space-saving thermally enhanced MSOP packaging

Applications

• Notebook computers
• Personal Digital Assistants (PDAs)
• Small portable audio devices

Procurement Notes

Verify the specific DGQR suffix indicates taped and reeled packaging configuration. Confirm RoHS compliance status and lead finish details against the latest manufacturer documentation. Ensure design inputs match the specified TTL-compatible logic levels for the shutdown pin.

Selection Notes

Select this component for designs requiring simultaneous mono speaker and stereo headphone outputs in compact form factors. Evaluate thermal performance requirements based on the PowerPAD package dissipation ratings. Verify input impedance matching for the high-impedance CMOS inputs to ensure proper gain settings.

Part Context

This part belongs to the TPA024x series of audio amplifiers designed for portable electronics. It integrates summing circuitry to create a mono signal from left and right inputs while maintaining independent stereo channels for headphones. The family targets battery-powered applications requiring efficient power usage and minimal external components.

Replacement Considerations

Check for direct pin-to-pin compatible alternatives within the same product family that may offer updated packaging or revised electrical specifications. Verify functional equivalence regarding BTL and SE mode configurations before substitution.