TPA112DGNR

Overview

The TPA112DGNR is a stereo audio power amplifier manufactured by Texas Instruments, housed in an 8-pin PowerPAD MSOP 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

• Stereo audio amplification with independent channel control
• Single-supply operation compatible with standard voltage rails
• Integrated thermal and short-circuit protection for reliability

Applications

• Portable audio devices requiring low-power amplification
• Headphone driver circuits
• Line-level input stages for home stereo systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product status documentation. Confirm that the DGN package variant matches the required PCB footprint and thermal pad specifications. Ensure compatibility with the intended operating temperature range and supply voltage constraints before finalizing procurement orders.

Selection Notes

Select this component when a compact stereo amplifier solution is needed for low-voltage applications. Consider the external resistor requirements for gain setting and the necessity of output coupling capacitors for single-ended configurations. Evaluate thermal management needs based on the PowerPAD package characteristics and expected load impedances.

Part Context

This part belongs to the TPA112 family of CMOS audio amplifiers designed for high-performance sound reproduction. It utilizes a standard operational amplifier pinout, facilitating integration into existing circuit designs. The PowerPAD MSOP package provides enhanced thermal dissipation capabilities compared to standard plastic packages.

Replacement Considerations

Consult official substitution guides for verified alternatives. Cross-reference pinouts and electrical specifications carefully.