TPA2016D2RTJR

Overview

The TPA2016D2RTJR is a stereo Class-D audio amplifier manufactured by Texas Instruments, housed in a 20-QFN (4x4 mm) package. It delivers 2.8 W per channel into a 4-ohm load and operates on a supply voltage ranging from 2.5 V to 5.5 V. The device features differential inputs, I²C control for gain and AGC configuration, and includes built-in short-circuit and thermal protection.

Feature Summary

• Integrates a digital automatic gain control engine with programmable limiters for dynamic range management without external DSP
• Supports I²C interface for real-time adjustment of gain structure, channel enablement, and volume control
• Includes hardware protection mechanisms against over-temperature, over-current, and under-voltage lockout conditions

Applications

• Smart voice nodes and IoT audio interaction devices
• Portable battery-powered audio terminals
• Educational acoustic experiment platforms
• Low-power HMI sound effect feedback systems

Procurement Notes

Verify the specific suffix RTJR confirms the 20-QFN 4x4mm surface-mount packaging and reel quantity specifications. Confirm that the I²C address configuration aligns with system requirements, as the default address may vary based on hardware pin states. Ensure compatibility with the intended microcontroller's I²C bus speed and logic levels before integration.

Selection Notes

Select this component when a compact, digitally controllable stereo amplifier is required for portable applications. It is suitable for designs needing integrated AGC to prevent clipping without complex external processing. Consider the 2.5V to 5.5V supply range for direct integration with standard 3.3V or 5V logic systems.

Part Context

This part belongs to the TPA2016 family of high-efficiency stereo amplifiers. It is designed for space-constrained environments where low power consumption and high fidelity are critical. The device replaces traditional analog volume controls and fixed-gain amplifiers with a fully programmable digital solution.

Replacement Considerations

Check datasheets for alternative TI models within the TPA series for similar power output and package dimensions. Verify if substitute parts support the same I²C register map and AGC functionality to ensure software compatibility.