TPA0252PWPR

Overview

The TPA0252PWPR is a stereo audio power amplifier IC from Texas Instruments, housed in a 24-pin PowerTSSOP package. It delivers 2 W per channel into a 3-ohm load at 5 V in bridge-tied load (BTL) configuration. The device operates within a supply voltage range of 4.5 V to 5.5 V and features internal depop circuitry to minimize output transients during power-up. It supports digital volume control ranging from 20 dB to -40 dB with memory retention across shutdown cycles.

Feature Summary

• Integrated digital volume control with microprocessor interface and memory retention
• Internal depop circuitry to eliminate pop noise during power transitions
• Dual-channel operation supporting both bridge-tied load and single-ended modes
• Input multiplexer for selecting between line and headphone input sources

Applications

• Portable multimedia devices requiring low-voltage stereo amplification
• Desktop PC audio systems utilizing BTL speaker outputs
• Embedded audio modules needing integrated volume management
• Battery-powered consumer electronics with strict power constraints

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm pinout compatibility and thermal specifications. Confirm that the component status remains active or suitable for your design lifecycle, as older TI audio products may have limited long-term availability. Ensure your PCB layout accounts for the PowerTSSOP thermal pad requirements for adequate heat dissipation.

Selection Notes

Select this component when a low-voltage (5 V) stereo amplifier with built-in digital volume control is required. It is suitable for applications where minimizing external components for mute and depop functions is a priority. Consider the BTL capability for higher power delivery into low-impedance loads compared to single-ended configurations.

Part Context

This part belongs to the TPA025x series of stereo audio power amplifiers designed for portable and desktop audio applications. It integrates control logic typically found in separate microcontrollers, simplifying system architecture. The device is optimized for single-supply operation common in consumer electronics powered by standard battery voltages.

Replacement Considerations

Consult the official Texas Instruments replacement guide for verified cross-references. No direct substitute part numbers are confirmed in the provided documentation.