TDA8920CTH/N1,118

Overview

The TDA8920CTH/N1,118 is a high-efficiency Class-D audio power amplifier manufactured by NXP. It operates within a symmetrical supply voltage range of ±12.5 V to ±32.5 V and features low quiescent current consumption. The device delivers typical output powers of 2 × 110 W in stereo single-ended configuration with a 4 Ω load at ±30 V, or 1 × 220 W in mono bridge-tied load configuration with an 8 Ω load. It incorporates advanced protection strategies including thermal foldback, overcurrent protection, and window protection.

Feature Summary

• Stereo full-differential inputs configurable for stereo single-ended or mono bridge-tied load operation
• Advanced protection strategy featuring thermal foldback, overtemperature protection, and short-circuit proof outputs
• Smooth pop noise-free start-up and switch-off via controlled mode selection input
• Zero dead time switching with fixed frequency internal oscillator

Applications

• DVD systems
• Mini and micro receivers
• Home Theater In A Box (HTIAB) systems
• High-power speaker systems

Procurement Notes

Verify the specific ordering suffix /N1,118 against the manufacturer's current documentation to confirm package details and compliance status. Ensure the HSOP24 package variant matches the required PCB footprint and thermal management design constraints for the target application environment.

Selection Notes

Select this component for designs requiring high efficiency and robust protection in compact audio applications. Consider the fixed gain requirements of 30 dB for single-ended and 36 dB for bridge-tied load configurations when designing the preceding signal stages. Evaluate thermal dissipation needs based on the junction-to-case thermal resistance provided in the datasheet.

Part Context

This part belongs to the TDA8920C series of Class-D power amplifiers. It is pin-compatible with the TDA8950/20B for both HSOP24 and DBS23P packages, facilitating potential design upgrades or replacements within existing hardware architectures that utilize these specific form factors.

Replacement Considerations

The TDA8920CTH is pin-compatible with the TDA8950/20B for the HSOP24 package. Verify functional equivalence and thermal characteristics before substituting.