TDA8920BJ/N2,112

Overview

The TDA8920BJ/N2,112 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 a DBS23P through-hole package. The device delivers typical output power of 2 × 100 W in stereo single-ended mode or up to 210 W in mono bridge-tied load configuration at ±27 V with THD = 10%. Key electrical parameters include a fixed gain of 30 dB (SE) or 36 dB (BTL), total quiescent current of 65 mA maximum, and an internal oscillator frequency of approximately 317 kHz.

Feature Summary

• Advanced protection mechanisms including over-temperature, over-current limiting, window protection, and supply voltage safeguards.
• Smooth start-up sequence utilizing gradual DC offset application to eliminate audible pop noise during mode transitions.
• Flexible input configurations supporting both stereo single-ended and mono bridge-tied load operations via differential inputs.
• Internal switching frequency can be synchronized using an external clock signal for multi-amplifier applications.

Applications

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

Procurement Notes

Verify the specific ordering suffix /N2,112 against the manufacturer's latest documentation to confirm compliance with current environmental directives such as RoHS and REACH. Ensure the DBS23P package variant matches the intended PCB footprint and thermal management requirements. Cross-reference the part number with official NXP databases to validate availability status and lead times prior to finalizing procurement plans.

Selection Notes

Select this component for designs requiring high efficiency and robust protection in mains-powered audio applications. Consider the DBS23P through-hole package for assembly processes preferring soldering over surface mount technology. Evaluate the need for external heatsinking based on the calculated power dissipation relative to the ambient temperature and thermal resistance constraints defined in the datasheet.

Part Context

The TDA8920BJ is part of the TDA8920B family of Class-D power amplifiers from NXP Semiconductors. This series is engineered for high-output power applications with low distortion. The 'BJ' designation specifically identifies the DBS23P plastic DIL-bent-SIL power package variant, distinguishing it from the HSOP24 surface-mount version (TDA8920BTH).

Replacement Considerations

The TDA8920BTH serves as the surface-mount equivalent within the same functional family. Verify pin compatibility and thermal characteristics when substituting between package types. No other direct cross-references are documented in the provided source material.