TDA7391PDU

$1.81

Description：IC AMP AB MONO 40W POWERSO-20
Series：-
Mfr：STMicroelectronics
Package：Tube

SKU:c3c5b4c630a6 Category: Audio Amplifiers Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC AMP AB MONO 40W POWERSO-20
Series：-
Mfr：STMicroelectronics
Package：Tube
Type：Class AB
Output Type：1-Channel (Mono)
Max Output Power x Channels @ Load：40W x 1 @ 3.2Ohm
Voltage - Supply：8V ~ 18V
Features：Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type：Surface Mount
Supplier Device Package：PowerSO-20
Package / Case：20-SOIC (0.433", 11.00mm Width) Exposed Pad
Operating Temperature：-40°C ~ 150°C (TJ)
Grade：-
Qualification：-

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TDA7391PDU

Overview

The TDA7391PDU is a bridge Class-AB audio power amplifier from the TDA7391 series, manufactured by STMicroelectronics. Designed for high-power automotive applications, it operates on a single supply voltage ranging from 8 V to 18 V. The device delivers up to 40 W into a 4 Ω load and 32 W into a 3.2 Ω load at 14.4 V with 10% distortion. It features an 11-pin Multiwatt package with through-hole mounting, a fixed gain of 30 dB, and supports both differential and single-ended input modes.

Feature Summary

Fully complementary output stage with internal fixed gain configuration reduces external component count
On-board clipping detector enables easy implementation of gain compression systems
Supports standby function compatible with CMOS logic and programmable turn-on/off delay
Comprehensive protection against short circuits, overtemperature, load dump, and ESD

Applications

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

Procurement Notes

Verify the specific suffix PDU indicates the 11-pin Multiwatt tube packaging variant. Confirm AEC-Q100 qualification status for automotive reliability requirements. Check current lifecycle status as some sources indicate NRND or end-of-life conditions. Ensure compatibility with existing thermal management designs given the through-hole package constraints.

Selection Notes

Select this component for mono-channel high-power automotive audio systems requiring minimal external circuitry. The fixed 30 dB gain simplifies design compared to variable gain alternatives. Consider the 11-pin Multiwatt package for through-hole assembly needs. Evaluate thermal performance under maximum load conditions due to the high power output capability in a single channel configuration.

Part Context

The TDA7391PDU belongs to the TDA7391 family of bridge Class-AB audio amplifiers. This series is specifically engineered for automotive environments, offering robust performance in vehicle electrical systems. The PDU designation specifies the physical package and termination style within the broader product line.