TS4984IQT

Overview

The TS4984IQT is a Class-AB stereo audio power amplifier manufactured by STMicroelectronics, housed in a 16-TQFN (4x4 mm) surface-mount package. It operates on a single supply voltage ranging from 2.2V to 5.5V and delivers up to 1.2W per channel into an 8-ohm load at 5V. The device features near-zero pop and click performance, an externally controlled standby mode with less than 10nA supply current per channel, and internal thermal shutdown protection. It supports configurable gain via external resistors and maintains high signal-to-noise ratio characteristics.

Feature Summary

• Delivers high-fidelity stereo audio output using a BTL configuration with minimal distortion.
• Incorporates active low standby mode to significantly reduce power consumption during idle periods.
• Features integrated thermal shutdown protection to ensure operational safety under overload conditions.

Applications

• Portable digital audio players
• Mobile phone speaker systems
• Personal media devices

Procurement Notes

Verify the specific suffix 'IQT' corresponds to the industrial temperature range (-40°C to 85°C) and the 16-TQFN package variant. Confirm that the ordering part number matches the required tape-and-reel quantity or cut-tape availability for your assembly process. Ensure compatibility with the 2.2V to 5.5V supply rail requirements of your target application design.

Selection Notes

Select this component when a compact stereo amplifier solution is required for battery-powered devices operating within the 2.2V to 5.5V range. It is suitable for designs prioritizing low quiescent current through its standby feature and requiring robust thermal management without external heat sinks. Consider the 16-TQFN footprint constraints during PCB layout planning.

Part Context

This component belongs to the TS4984 family of audio power amplifiers designed for high-performance stereo applications. The TS4984IQT specifically denotes the industrial grade version packaged in a lead-free QFN16 4x4 mm format. It is engineered to provide efficient power dissipation and high sound quality for consumer electronics where space and power efficiency are critical design parameters.

Replacement Considerations

Check for other variants within the TS4984 series that may offer different temperature grades or packaging options if the industrial rating exceeds requirements. Verify pinout compatibility before substituting with similar stereo amplifiers from other manufacturers to ensure direct replacement feasibility.