TDA749213TR

Overview

The TDA749213TR is a dual BTL Class-D audio amplifier manufactured by STMicroelectronics, designed for single-supply operation in LCD TVs and monitors. It delivers 50 W + 50 W continuous output power at THD = 10% with RL = 6 Ω and VCC = 25 V, or 40 W + 40 W at RL = 8 Ω. The device operates on a wide-range single supply of 8 V to 26 V with high efficiency (η = 90%). It features four selectable fixed gain settings: 21.6 dB, 27.6 dB, 31.1 dB, and 33.6 dB. Differential inputs minimize common-mode noise, while standby and mute functions are included. Protection mechanisms include short-circuit and thermal overload protection. The component is housed in a PowerSSO-36 EPU package.

Feature Summary

• Dual BTL Class-D architecture optimized for single-supply applications
• High efficiency design reducing thermal management requirements
• Differential input configuration for noise reduction
• Integrated short-circuit and thermal overload protection

Applications

• LCD televisions
• Computer monitors
• Audio systems requiring high-efficiency amplification

Procurement Notes

Verify the specific suffix '13' against the manufacturer's official documentation to confirm package type and temperature range compatibility. Confirm current production status as distribution channels may list obsolete or end-of-life inventory. Ensure the PowerSSO-36 EPU footprint matches the target PCB layout before procurement.

Selection Notes

Select this component when designing systems requiring high output power from a single voltage rail. The exposed-pad-up package facilitates heat dissipation without complex heatsinking. Verify that the required gain setting aligns with one of the four fixed options provided by the hardware configuration.

Part Context

This part belongs to the TDA7492 series of audio amplifiers. The '13' suffix typically denotes the tape and reel packaging variant of the standard TDA7492 device. It shares core electrical specifications with the tube-packaged version but differs in shipping and handling logistics for automated assembly lines.

Replacement Considerations

The TDA7492PE serves as a pin-compatible alternative in tube packaging. Verify that the package thermal characteristics and pinout remain identical before substitution.