TPA0172PWPG4

Overview

The TPA0172PWPG4 is a stereo audio power amplifier in a 24-pin TSSOP PowerPAD package. It delivers 2 W continuous RMS power per channel into 4-Ω loads. The device uses I2C bus control for functionality, minimizing external components. It features integrated depop circuitry to eliminate speaker transients during power transitions. Supply current is 6.5 mA in normal operation and less than 15 µA in shutdown mode. The PowerPAD package provides thermal performance suitable for full power operation at ambient temperatures up to 85°C.

Feature Summary

• I2C Bus Controllable
• Integrated Depop Circuitry
• Digital Volume Control
• Internal Gain Control

Applications

• PC 99 Desktop Line-Out
• PC 99 Portable Audio
• Notebook Computer Audio Systems

Procurement Notes

Verify the specific suffix PG4 indicates lead-free and RoHS compliance status as defined by Texas Instruments standards. Confirm the PWP package variant matches the required thermal dissipation characteristics for the target PCB layout. Ensure the ordering code aligns with the taped and reeled availability if automated assembly is planned.

Selection Notes

Select this component for designs requiring digital volume adjustment via I2C without external gain-setting resistors. The internal gain control simplifies schematic design. Consider the PowerPAD package for applications needing high thermal efficiency in compact spaces. Verify that the system I2C voltage levels match the I2CVDD pin requirements.

Part Context

This part belongs to the TPA0172 series of stereo audio amplifiers. It is designed for portable and desktop audio applications where board space is limited. The series utilizes CMOS technology for low power consumption. The TPA0172 integrates multiple functions typically found in discrete solutions, including muxes and volume control.

Replacement Considerations

TPA0172PWPR is the taped and reeled version of the same device.