TDA1519CSP/N3C,112

Overview

The TDA1519CSP/N3,112 is a Class-B dual output audio power amplifier manufactured by NXP USA Inc. It delivers up to 22 W in Bridge-Tied Load (BTL) configuration or 11 W per channel in stereo mode at 4 Ω with 10% THD. The device operates on a supply voltage ranging from 6 V to 17.5 V and features a fixed closed-loop gain of 40 dB. It utilizes a 9-lead surface-mount single inline plastic package (SMS9P). Key electrical characteristics include a total quiescent current of 80 mA maximum and a standby current of 100 µA maximum.

Feature Summary

• Integrated mute and standby switch functionality for low-power management
• Built-in protection against AC/DC short circuits, thermal overload, and reverse polarity
• Capable of handling high energy pulses at outputs even when the supply voltage is zero
• Designed for minimal external component requirements in BTL applications

Applications

• Stereo audio amplification in consumer electronics
• Bridge-Tied Load (BTL) speaker driving configurations
• Car radio power amplifier stages
• TV sound system integration

Procurement Notes

Verify the specific ordering suffix /N3,112 against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Confirm that the SMS9P package variant matches the intended PCB footprint design. Ensure the application circuit respects the absolute maximum ratings for load dump and supply voltage to prevent permanent damage.

Selection Notes

Select this component for designs requiring high output power with minimal external passive components. The fixed 40 dB gain simplifies signal chain design. Verify that the thermal resistance of the PCB copper area is sufficient to dissipate heat within the 150 °C junction temperature limit under maximum load conditions.

Part Context

This part belongs to the TDA1519 family of integrated class-B dual output amplifiers. It is pin-compatible with the TDA1519B variant. The device is available in multiple packages including SIL9P, HSOP20, and SMS9P, catering to different thermal and mounting requirements for mains-fed stereo applications.

Replacement Considerations

The TDA1519B is documented as pin-compatible with the TDA1519C series.