TDF8591TH/N1S,118

Overview

The TDF8591TH is a high-efficiency Class-D audio power amplifier designed for automotive applications. It delivers 2 x 100 W into 4 Ω in Single-Ended (SE) mode or 310 W into 4 Ω in Bridge-Tied Load (BTL) mode. The device operates on a supply voltage range of ±14 V to ±29 V with low quiescent current. It features fixed gains of 26 dB (SE) and 32 dB (BTL), supports loads from 2 Ω to 8 Ω, and includes comprehensive protection against thermal, overcurrent, and short-circuit conditions.

Feature Summary

• Zero dead time switching minimizes distortion and improves efficiency.
• No DC offset induced pop noise during mode transitions ensures silent operation.
• Advanced output current protection prevents damage under fault conditions.
• High supply voltage ripple rejection maintains performance stability.

Applications

• Car audio systems
• Dual channel stereo amplification
• Mono bridge-tied load speaker driving

Procurement Notes

Verify the exact ordering suffix matches the required package variant. Confirm RoHS compliance status for specific manufacturing batches. Ensure the component meets AEC-Q100 qualification requirements if specified for your automotive design. Check datasheet revision dates to confirm feature consistency.

Selection Notes

Select this amplifier for designs requiring high output power with minimal external heat sinking due to its internal heatsink structure. Consider the differential input configuration for improved common-mode rejection. Evaluate the need for an external oscillator resistor to set the PWM frequency between 300 kHz and 350 kHz for optimal performance.

Part Context

This component belongs to NXP's TDF series of Class-D audio amplifiers. It is specifically engineered for automotive environments, offering robust protection features and high efficiency. The HSOP24 package integrates a small internal heatsink to facilitate thermal management without excessive board space usage.

Replacement Considerations

TDF8599BTH/N1CS