TAS5441QPWPRQ1

Overview

The TAS5441QPWPRQ1 is a mono analog-input Class-D automotive audio amplifier. It delivers up to 22 W into a 4-ohm load at 10% THD+N and operates within a 4.5-V to 18-V supply range. The device features an 85% efficiency rating, differential analog inputs, and Speaker Guard protection with adjustable power limiting. Integrated diagnostics via I2C monitor open/shorted loads and output faults. It includes 40-V load dump protection per ISO-7637-2, overtemperature shutdown, and undervoltage protection. Packaged in a thermally enhanced 16-pin HTSSOP.

Feature Summary

• Integrated load diagnostic functions for detecting open circuits, short-to-ground, short-to-power, and shorted loads.
• Built-in 40-V load dump protection compliant with ISO-7637-2 standards for robust automotive operation.
• Speaker Guard technology provides adjustable power limiting to protect speakers from excursion limits.
• I2C serial communication bus enables non-blocking status polling, gain configuration, and switching frequency adjustment.

Applications

• Automotive Emergency Call (eCall) Amplifier
• Telematics Systems
• Instrument Cluster Audio Systems
• Infotainment Audio

Procurement Notes

Verify the specific ordering suffix matches the required package type and tape/reel specifications. Confirm that the component meets AEC-Q100 Grade 1 qualification requirements for your target temperature range. Ensure the design accounts for the thermal resistance characteristics of the PowerPAD™ package during layout.

Selection Notes

Select this component for applications requiring high-efficiency mono amplification in space-constrained automotive environments. The integrated load diagnostics reduce external monitoring circuitry needs. Verify that the system's I2C pull-up resistors and voltage levels are compatible with the specified logic thresholds for reliable communication.

Part Context

This part belongs to Texas Instruments' TAS54xx-Q1 family of automotive Class-D audio amplifiers. These devices are designed to replace traditional Class-AB amplifiers, offering reduced heat dissipation and lower peak current demands on the vehicle electrical system while maintaining high audio fidelity.

Replacement Considerations

TAS5421QPWPRQ1: Similar 22-W mono amplifier but lacks I2C diagnostics and load dump protection.

FAQ

How does the device handle load dump events?

The TAS5441-Q1 incorporates internal 40-V load dump protection compliant with ISO-7637-2, allowing it to withstand voltage spikes without external clamping components in both standby and active modes.

What diagnostic capabilities are available?

The device detects and reports open loads, short-to-ground, short-to-PVDD, and shorted loads via the I2C interface and asserts the FAULT pin for critical faults like overcurrent or overtemperature.