TS4871EID

Overview

The TS4871EID is a mono audio power amplifier manufactured by STMicroelectronics, housed in an 8-SOIC surface-mount package. It delivers 1 W of continuous RMS output power into an 8 Ω load when supplied with 5 V. The device operates within a supply voltage range of 2.5 V to 5.5 V and functions across an ambient temperature range of -40°C to +85°C. Key electrical specifications include a total harmonic distortion plus noise (THD+N) of 0.15% and a gain-bandwidth product of 2 MHz. The amplifier draws a typical operating supply current of 6 mA.

Feature Summary

• Integrates active high standby mode control to minimize power consumption during idle periods.
• Includes internal thermal shutdown protection to safeguard the device under fault conditions.
• Designed for near-zero pop and click performance to ensure quiet audio transitions.

Applications

• Mobile phone audio systems
• Portable multimedia players
• Low-power consumer electronics

Procurement Notes

Verify the specific suffix EID confirms the 8-SOIC package variant rather than other available packages like TSSOP or DFN. Confirm RoHS compliance status and check for any end-of-life notices, as some listings indicate this specific part number may be discontinued. Ensure the supplier provides original manufacturer documentation to validate authenticity before procurement.

Selection Notes

Select this component when a single-channel Class-AB amplifier is required for space-constrained designs utilizing SOIC packaging. It is suitable for applications needing rail-to-rail output swing at low supply voltages. Consider alternative packages such as MiniSO8 if footprint reduction is prioritized over the standard SOIC dimensions provided in this model.

Part Context

This component belongs to the TS4871 series of low-voltage audio amplifiers from STMicroelectronics. The series is engineered for high-quality audio reproduction in portable devices while minimizing external component counts. The TS4871 family offers various package options to accommodate different PCB layout requirements and thermal management needs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.