TPA711DR

Overview

The TPA711DR is a single-channel mono audio amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It operates as a Class-AB amplifier with a maximum output power of 700 mW into an 8-ohm load. The device functions within a supply voltage range of 2.5 V to 5.5 V and draws a typical operating current of 1.25 mA. Key electrical specifications include a gain-bandwidth product of 1.4 MHz and a total harmonic distortion plus noise (THD+N) of 0.55%. It supports a wide operating temperature range from -40°C to +85°C.

Feature Summary

• Integrates pop-and-click suppression circuitry to minimize audible transients during power-up and power-down sequences.
• Includes comprehensive protection mechanisms such as thermal shutdown and short-circuit protection to ensure operational reliability.
• Features a dedicated shutdown pin for effective power management and extended battery life in portable applications.

Applications

• Mobile phone speaker amplification
• Personal digital assistant (PDA) audio output stages
• Portable media player loudspeaker drivers

Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm packaging type and RoHS compliance status. Ensure the ordering part number matches the required tape and reel configuration for automated assembly processes. Cross-reference the manufacturer's latest datasheet to validate any recent design changes or lifecycle notifications associated with this component.

Selection Notes

Select this component for low-voltage single-supply applications requiring moderate audio power in a compact footprint. Consider the 8-SOIC package dimensions for PCB layout constraints. Evaluate the 1.25 mA quiescent current against system power budgets. Confirm that the 700 mW output capability meets the impedance requirements of the connected acoustic transducer.

Part Context

This device belongs to the TPA711 series of audio amplifiers designed for portable electronics. It serves as a solution for driving small speakers in battery-operated devices where efficiency and size are critical. The series emphasizes simplicity of use with minimal external components required for operation.

Replacement Considerations

TPA711DG4 is a verified equivalent variant within the same family, differing primarily in tube packaging rather than functional performance.