TS482IQT

Overview

The TS482IQT is a Class-AB stereo headphone amplifier manufactured by STMicroelectronics. It operates on a single power supply ranging from 2 V to 5.5 V and delivers 107 mW of output power into a 32 Ohm load. The device features a gain-bandwidth product of 2.2 MHz, low total harmonic distortion plus noise of 0.03%, and an input offset voltage of 5 mV. It draws 5.5 mA of quiescent current and includes thermal protection. The component is housed in an SOIC-8 surface-mount package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Stereo audio amplification with pop-free startup functionality
• Integrated thermal shutdown protection for operational safety
• Low distortion performance suitable for high-fidelity audio applications

Applications

• Portable digital audio players
• Mobile phone headphone outputs
• MP3 player circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm pinout compatibility and electrical characteristics. Ensure the procurement channel provides valid traceability documentation. Confirm that the received components match the specified SOIC-8 package dimensions and marking codes before integration into production assemblies.

Selection Notes

Select this component for designs requiring a dual-channel solution with minimal external filtering. The low quiescent current supports battery-powered systems. Verify that the 32 Ohm load impedance aligns with the target speaker or headphone specifications to ensure optimal power delivery and signal integrity without exceeding thermal limits.

Part Context

This part belongs to the TS482 series of audio amplifiers designed for portable consumer electronics. It serves as a compact alternative to discrete amplifier solutions, integrating necessary protection features into a small footprint. The series targets applications where space constraints and power efficiency are critical design parameters for audio subsystems.

Replacement Considerations

Cross-reference with other STMicroelectronics audio amplifiers in the same package family. Verify pin-to-pin compatibility and electrical parameter alignment before substituting.