TDA8920BTH/N2,118

Overview

The TDA8920BTH/N2,118 is a high-efficiency Class-D audio power amplifier manufactured by NXP USA Inc. It operates within a supply voltage range of ±12.5 V to ±30 V and features very low quiescent current consumption. The device supports stereo Single-Ended (SE) or mono Bridge-Tied Load (BTL) configurations. Key electrical parameters include a typical internal oscillator frequency of 317 kHz, a fixed closed-loop gain of 30 dB in SE mode and 36 dB in BTL mode, and a maximum output current limit of 8 A. It provides high output power with low distortion.

Feature Summary

• Zero dead time switching for improved efficiency
• Smooth start-up mechanism preventing pop noise due to DC offset
• Advanced protection including overcurrent limiting, thermal shutdown, and window protection
• Fully differential audio inputs for high common-mode rejection

Applications

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

Procurement Notes

Verify the specific ordering suffix /N2,118 against official NXP documentation to confirm package type and environmental compliance status. Confirm component availability as this part may be subject to discontinuation notices. Ensure compatibility with existing PCB footprints for the HSOP24 package before procurement.

Selection Notes

Select this component for applications requiring high efficiency and low heat dissipation in mains-powered audio systems. Consider the fixed gain settings and differential input requirements when designing the signal chain. Evaluate thermal management needs based on the expected output power and ambient operating temperature conditions.

Part Context

This component belongs to the TDA8920 series of Class-D power amplifiers from NXP Semiconductors. It is designed as a single-chip solution integrating D-MOS switches, drivers, and control logic. The TH suffix indicates the HSOP24 plastic heatsink small outline package variant.

Replacement Considerations

Consult official NXP documentation for confirmed substitute part numbers. Verify pinout compatibility and electrical specifications if considering alternative packages such as the DBS23P variant.