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TDA7381

  • TDA7381

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TDA7381 Overview

The TDA7381 is a class AB audio power amplifier in Flexiwatt25 package designed for car radio applications. Thanks to the fully complementary PNP/NPN output configuration the TDA7381 allows a rail to rail output voltage swing with no need of bootstrap capacitors..

The extremely reduced components count allows very compact sets. The on-board clipping detector simplifies gain compression operations. The fault diagnostics makes it possible to detect mistakes during car-radio assembly and wiring in the car.

tda7381-1 tda7381-2

Features

  • High output power capability:
  • 4 x 30 W/4 Ω max.
  • 4 x 25 W/4 Ω EIAJ
  • 4 x 18 W/4 Ω @ 14.4 V, 1 kHz, 10 %
  • 4 x 15 W/4 Ω @ 13.2 V, 1 kHz, 10 %
  • 4 x 30 W/4 Ω max.
  • 4 x 25 W/4 Ω EIAJ
  • 4 x 18 W/4 Ω @ 14.4 V, 1 kHz, 10 %
  • 4 x 15 W/4 Ω @ 13.2 V, 1 kHz, 10 %
  • Clipping detector
  • Low distortion
  • Low output noise
  • Standby function
  • Mute function
  • Automute at min. supply voltage detection
  • Diagnostics facility for:
  • Clipping
  • Out to GND short
  • Out to VSshort
  • Thermal shutdown
  • Clipping
  • Out to GND short
  • Out to VSshort
  • Thermal shutdown
  • Low external component count:
  • Internally fixed gain (26 dB)
  • No external compensation
  • No bootstrap capacitors
  • Internally fixed gain (26 dB)
  • No external compensation
  • No bootstrap capacitors
  • Protections:
  • Output short circuit to GND, to VS, across the load
  • Very inductive loads
  • Overrating chip temperature with soft thermal limiter
  • Load dump voltage
  • Fortuitous open GND
  • Reversed battery
  • ESD protection
  • Output short circuit to GND, to VS, across the load
  • Very inductive loads
  • Overrating chip temperature with soft thermal limiter
  • Load dump voltage
  • Fortuitous open GND
  • Reversed battery
  • ESD protection
TDA7381
TDA7381

Product Parameters

  • prmis_id

    CP37694

  • item_name

    TDA7381

  • p_445

    No

  • p_1387

  • p_4418

  • parent_id

    PF65188

  • p_4906

    false

  • p_5113

    0

  • p_163

    Active

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Other distributor's price

Distributor Part # Mfg. Description Price
arrow TDA7381 STMicroelectronics Audio Amp Speaker 4-CH Stereo 30W Class-AB Automotive 25-Pin FLEXIWATT(Vertical) Tube

1---$3.1430
verical TDA7381 STMicroelectronics Audio Amp Speaker 4-CH Stereo 30W Class-AB Automotive 25-Pin FLEXIWATT(Vertical) Tube

3---$3.1430
mouser TDA7381 STMicroelectronics Audio Amplifiers 4X25W Quad Brdg Amp

1---$6.6000

10---$5.9300

25---$5.6100

100---$4.8600

250---$4.6100

357---$4.1300

1071---$3.7600

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