E-TDA7391PDTR

Audio Amplifiers Overview

The E-TDA7391PDTR is a bridge Class-AB audio power amplifier designed for automotive applications. It delivers up to 40W output into a 3.2Ω load and 32W into a 3.2Ω load at 14.4V supply with 10% THD. The device operates on a single supply voltage ranging from 8V to 18V. It features differential inputs, internally fixed gain of 30dB, and comprehensive protection mechanisms including short-circuit, thermal overload, and load dump protection.

Audio Amplifiers Feature Summary

• Bridge Class-AB architecture optimized for high-power car radio applications
• Supports both differential and single-ended input signal modes
• Integrated clipping detector for easy gain compression implementation
• Eliminates need for bootstrap capacitors, Boucherot cells, and SVR capacitors

Audio Amplifiers Applications

• High-power car radio amplifiers
• Automotive audio boosters
• End-level car radio equipment

Audio Amplifiers Procurement Notes

Verify the specific suffix 'PDTR' indicates tape-and-reel packaging versus tube variants like 'PDU'. Confirm AEC-Q100 qualification status for automotive reliability requirements. Check current lifecycle status as distribution data indicates potential obsolescence or discontinuation for certain package types within the TDA7391 family.

Audio Amplifiers Selection Notes

Select this component when designing mono bridge configurations requiring high efficiency and minimal external components. The internal fixed gain simplifies circuit design by removing external feedback resistors. Ensure the application supports the required 14.4V automotive supply environment and utilizes the Multiwatt or PowerSO package constraints.

Audio Amplifiers Part Context

This part belongs to the TDA7391 series of automotive audio amplifiers. It shares core functionality with variants such as TDA7391PDU and TDA7391PD, differing primarily in packaging and reel configuration. The series is characterized by its fully complementary output stage and robust protection features tailored for vehicle electrical systems.

Audio Amplifiers Replacement Considerations

Direct substitutes include TDA7391PD (tube) and TDA7391PDU (PowerSO slug up). Verify pinout compatibility between Multiwatt-11 and PowerSO-20 packages if mechanical constraints differ. Cross-reference with TDA7391LV for alternative packaging options within the same functional family.