TDA1519CTD/N3,118

Overview

The TDA1519CTD/N3,118 is a Class-B dual output audio power amplifier manufactured by NXP Semiconductors. It operates within a supply voltage range of 6.0 V to 17.5 V and delivers up to 22 W in Bridge-Tied Load (BTL) configuration or 2 × 11 W in stereo mode at 4 Ω with 10% THD. The device features a fixed closed-loop voltage gain of 40 dB for stereo applications and 46 dB for BTL. It incorporates comprehensive protection mechanisms including load dump tolerance up to 45 V, reverse polarity safety, AC/DC short-circuit protection, and thermal shutdown.

Feature Summary

• Integrated mute and standby switch functionality enabling low quiescent current consumption and elimination of switching transients.
• Robust protection architecture providing immunity against load dumps, reverse polarity connections, and output short circuits.
• Low DC output offset voltage optimized for stable operation in bridge-tied load configurations.
• High energy handling capability on outputs during power-down conditions.

Applications

• Automotive radio systems requiring high power output
• Stereo audio amplification circuits
• Bridge-tied load speaker driving applications

Procurement Notes

Verify the specific ordering suffix N3,118 against the manufacturer's latest documentation to confirm package orientation and pinout compatibility. Confirm RoHS compliance status and check for any superseded data sheets that may alter electrical characteristics or mechanical dimensions before finalizing procurement specifications.

Selection Notes

Select this component for designs requiring integrated thermal and electrical protection without external discrete components. Ensure the PCB copper area accommodates the HSOP20 heatsink requirements for adequate thermal dissipation. Verify that the application supply voltage remains within the specified operating limits to maintain performance stability.

Part Context

This part belongs to the TDA1519C family of integrated class-B dual output amplifiers. It shares functional similarities with the TDA1519B but offers enhanced protection features. The CT designation indicates a surface-mount HSOP20 package variant designed for efficient heat transfer to the printed circuit board substrate.

Replacement Considerations

The datasheet explicitly states the device is pin compatible with the TDA1519B and TDA1519CSP variants. These parts may serve as direct replacements if mechanical footprint constraints are met.