TS4871IDT

Overview

The TS4871IDT is a monolithic audio power amplifier in MiniSO8 package. It delivers 1 W continuous RMS output into an 8 Ω load at 5 V supply with 1% THD. Operating voltage ranges from 2.5 V to 5.5 V. Standby current drops below 10 nA. Total harmonic distortion plus noise is 0.15%. Gain bandwidth product is 2 MHz. Supply current is typically 6 mA. Output offset voltage is 20 mV maximum.

Feature Summary

• Rail-to-rail output capability for maximum power efficiency
• Ultra-low standby consumption reduces battery drain
• Internal thermal shutdown protects against overheating
• Unity-gain stable design simplifies circuit configuration

Applications

• Mobile phones and cellular devices
• Laptop and notebook computers
• Portable audio players
• Personal digital assistants

Procurement Notes

Verify the specific ordering suffix IDT corresponds to the MiniSO8 tape and reel packaging format required for automated surface-mount assembly. Confirm the component status remains active as datasheet revisions may impact long-term availability. Ensure the supplier provides original manufacturer documentation to validate authenticity and traceability before finalizing procurement orders.

Selection Notes

Select this amplifier for single-channel mono audio applications requiring high fidelity in space-constrained designs. The BTL configuration allows for higher output power compared to single-ended setups. External resistors set the closed-loop gain, offering flexibility for various input signal levels. Consider the thermal resistance characteristics when designing PCB layouts for optimal heat dissipation under continuous operation.

Part Context

This component belongs to the TS4871 series of low-voltage audio amplifiers manufactured by STMicroelectronics. The series targets portable electronics where power efficiency and sound quality are critical. The MiniSO8 package provides a compact footprint suitable for modern mobile device architectures while maintaining adequate thermal performance for the delivered power levels.

Replacement Considerations

TS4871IST is a pin-compatible alternative in the same MiniSO8 package family.