TDA8922TH/N1,518

Overview

The TDA8922TH/N1,518 is a two-channel Class-D audio power amplifier by NXP Semiconductors. It delivers typical output power of 2 × 25 W in stereo single-ended configuration and up to 50 W in mono bridge-tied load mode. The device operates with supply voltages from ±12.5 V to ±30 V and achieves high efficiency of approximately 90%. It features differential audio inputs, internal protections including overtemperature and short-circuit safety, and supports both internal and external clock synchronization.

Feature Summary

• High-efficiency Class-D architecture with low quiescent current consumption
• Configurable as stereo single-ended or mono bridge-tied load amplifier
• Integrated protection against overtemperature, short circuits, and undervoltage
• Differential audio inputs for high common-mode rejection and flexible application

Applications

• Television sets
• Home-sound systems
• Multimedia systems
• Mains-fed audio equipment
• Car audio boosters

Procurement Notes

Verify the specific ordering suffix N1,518 corresponds to the HSOP24 package and tape-and-reel delivery format as defined in the official datasheet. Confirm that the component meets the required RoHS compliance standards for your region. Ensure the supplier provides valid traceability documentation consistent with NXP Semiconductor quality specifications.

Selection Notes

Select this component for applications requiring high output power with minimal thermal management due to its efficient Class-D operation. Consider the HSOP24 package for surface-mount designs where space is limited. Evaluate the need for an external heatsink based on ambient temperature and load impedance requirements to ensure junction temperature remains within safe limits.

Part Context

The TDA8922 belongs to NXP's family of high-efficiency Class-D audio amplifiers. It is designed to replace older Class-AB solutions in compact audio systems. The TH variant specifically denotes the HSOP24 plastic package with a small integrated heatsink, distinguishing it from through-hole alternatives like the TDA8922J.

Replacement Considerations

The TDA8922J is a pin-compatible alternative using a DBS23P through-hole package. Verify thermal performance differences when substituting packages. No other direct functional substitutes are confirmed in the provided documentation.