TS4998IQT

Overview

The TS4998IQT is a stereo audio power amplifier manufactured by STMicroelectronics, housed in a 16-QFN (4x4) surface-mount package. It operates on a single supply voltage ranging from 2.2V to 5.5V and delivers 1W of output power per channel into an 8-ohm load. The device utilizes Class AB topology with differential inputs to minimize external component count and improve noise immunity. Key electrical characteristics include ultra-low quiescent current and integrated thermal protection mechanisms.

Feature Summary

• Differential input configuration for enhanced noise rejection
• Integrated pop-and-click suppression circuitry
• Built-in thermal shutdown and short-circuit protection

Applications

• Portable multimedia devices
• Mobile phone speaker systems
• Personal digital assistants

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging and temperature grade. Confirm that the 16-QFN footprint matches your PCB design constraints. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement orders.

Selection Notes

Select this component when a compact stereo solution with differential inputs is required for battery-powered applications. Ensure the system voltage remains within the 2.2V to 5.5V operational range. Consider the 16-QFN package size for space-constrained designs requiring high integration levels.

Part Context

This part belongs to the TS49xx series of low-power audio amplifiers designed for portable electronics. It shares functional similarities with other models in the family but is distinct in its stereo configuration and specific pinout arrangement within the 16-QFN package.

Replacement Considerations

Consult the official datasheet for direct pin-to-pin compatible alternatives within the same product family. Verify that any substitute maintains the same differential input capability and package dimensions.