TDA7498LTR

Overview

The TDA7498LTR is a dual BTL Class-D audio amplifier manufactured by STMicroelectronics, designed for home systems and active speaker applications. It operates on a wide-range single supply voltage from 14V to 36V. The device delivers 80W per channel into a 6-ohm load at 32V supply with 10% THD. Key electrical parameters include a typical efficiency of 90%, differential inputs, and four selectable fixed gain settings: 25.6dB, 31.6dB, 35.1dB, and 37.6dB. It features short-circuit and thermal overload protection, standby mode, and mute functionality.

Feature Summary

• Dual BTL Class-D architecture providing high-efficiency stereo amplification
• Differential input configuration to minimize common-mode noise
• Integrated short-circuit and thermal overload protection mechanisms
• Externally synchronizable operation with selectable fixed gain levels

Applications

• Home audio systems
• Active speaker designs
• Multi-channel audio amplification

Procurement Notes

Verify the specific suffix 'L' indicates the standard operating temperature range and performance characteristics distinct from other variants like 'E'. Confirm package type PowerSSO-36 EPU matches PCB footprint requirements. Check RoHS compliance status against current regulatory standards. Ensure moisture sensitivity level handling procedures are followed during assembly.

Selection Notes

Select this component when designing stereo audio systems requiring high power output from a single supply rail. Consider the exposed pad up (EPU) package for efficient heat dissipation via external heatsinks. Evaluate the four available gain options to match source signal levels without additional attenuation circuitry. Verify that the 14V to 36V supply range aligns with the system's power budget.

Part Context

This part belongs to the TDA7498 family of Class-D audio amplifiers. It shares the same core topology as the TDA7498TR but differs in specific operational ratings or packaging configurations. The family is engineered for high-efficiency audio reproduction in consumer electronics where thermal management and power supply constraints are critical design factors.

Replacement Considerations

TDA7498TR is a related variant within the same product family. Verify if the TR suffix denotes identical electrical specifications or differences in temperature range and output power capabilities before substitution.