TPA112D

Overview

The TPA112D is a stereo audio power amplifier manufactured by Texas Instruments, housed in an 8-pin SOIC (D) package. It delivers 150 mW of continuous RMS output power per channel into 8-ohm loads. The device operates from a single supply voltage ranging from 2.5 V to 5.5 V and features externally configurable gain settings between 1 and 10 using two resistors per channel. It includes built-in thermal and short-circuit protection mechanisms.

Feature Summary

• Delivers 150-mW stereo output power per channel into 8-ohm loads
• Operates on a wide range of supply voltages from 2.5 V to 5.5 V
• Gain is externally configured by means of two resistors per input channel
• Includes thermal and short-circuit protection

Applications

• Portable audio devices
• Headphone amplifiers
• Line-level inputs

Procurement Notes

Verify the specific ordering suffix for the TPA112D against the manufacturer's current documentation. The datasheet indicates that the 'D' package variant is available in left-ended tape and reel configurations only. Ensure compatibility with standard surface-mount assembly processes and confirm the active status of the component before finalizing procurement plans.

Selection Notes

Select the TPA112D for applications requiring low-voltage stereo amplification with high efficiency. The device supports operation at both 3.3-V and 5-V levels, making it suitable for battery-powered systems. Consider the external gain-setting requirements and the need for adequate power supply decoupling to maintain optimal performance and minimize distortion.

Part Context

The TPA112D belongs to the TPA112 family of stereo audio power amplifiers from Texas Instruments. It is designed as a high-performance CMOS audio amplifier, offering a standard operational amplifier pinout within a compact PowerPAD MSOP or SOIC package. This family is intended for portable consumer electronics where space and power efficiency are critical constraints.

Replacement Considerations

TPA112DR