TDF8546JS/N2,512

Overview

The TDF8546JS/N2,512 is a complementary quad bridge-tied load (BTL) audio power amplifier designed for automotive applications. It delivers 45 W output per channel into a 4-ohm load with a THD+N of 0.03%. Operating on a 6 V to 18 V supply, it features Class-AB topology and an SOI-based BCD process for robust performance. The device supports I2C-bus control and includes diagnostics.

Feature Summary

• Integrated best efficiency mode using patented switch technique to reduce switching distortion and power dissipation
• Stop/start-car prepared operation maintaining functionality without audible disturbance at battery voltages as low as 6 V
• Complementary DMOS output stage in silicon-on-insulator process ensuring latch-up immunity and channel isolation

Applications

• Automotive infotainment systems requiring high-efficiency multi-channel amplification
• Vehicle audio setups utilizing stop/start engine technology
• I2C-controlled audio architectures needing integrated diagnostics

Procurement Notes

Verify the specific suffix N2,512 against official NXP documentation to confirm tape-and-reel packaging details. Confirm RoHS compliance status and lead-free specifications directly from the manufacturer's datasheet or certification documents before procurement.

Selection Notes

Select this component for designs requiring four independent BTL channels with integrated digital control. Ensure the system architecture supports I2C communication for diagnostic access. Verify that the PCB layout accommodates the required thermal management for the specified package type under maximum load conditions.

Part Context

This part belongs to the TDF8546 family of I2C-bus controlled audio amplifiers. It represents a generation of amplifiers optimized for automotive environments, combining high power output with advanced efficiency modes and comprehensive fault protection mechanisms within a single integrated circuit solution.

Replacement Considerations

Consult NXP official substitution lists for verified alternatives. Generic cross-references are not recommended due to specific I2C addressing and diagnostic protocol dependencies inherent to this family.