Showing posts with label quad. Show all posts
Showing posts with label quad. Show all posts

Sunday, August 31, 2014

TDA7566 4 x 40 W multifunction quad power amplifier

Features

  • DMOS power output
  • High output power capability 4 x 25 W/4  @ 
  • 14.4 V, 1 kHz, 10 % THD, 4 x 40 W max. power
  • Max. output power 4 x 60 W/2 
  • Full I2C bus driving:
  • Standby
  • Independent front/rear soft play/mute
  • Selectable gain 26 dB - 12 dB
  • I2C bus digital diagnostics
  • Full fault protection
  • DC offset detection
  • Four independent short circuit protection
  • Clipping detector pin with selectable threshold (1%, 10%)
  • ESD protection

Description

The TDA7566 is a new BCD technology quad bridge type of car radio amplifier in Flexiwatt25  package specially intended for car radio applications. Thanks to the DMOS output stage the TDA7566 has a very low distortion allowing a clear powerful sound. This device is equipped with a full diagnostics array that communicates the status of each speaker through the I2C bus.The possibility to control the configuration and behavior of the device by means of the I2C bus makes TDA7566 a very flexible product.

Circuit Diagram:
TDA7566 - 4 x 40 W multifunction quad power amplifier

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Friday, August 29, 2014

4x25 W quad bridge car radio amplifier TDA7381

General description:

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.
Features:
  • 4 x 30 W/4  max.
  • 4 x 25 W/4  EIAJ
  • 4 x 18 W/4  @ 14.4 V, 1 kHz, 10 %
  • 4 x 15 W/4  @ 13.2 V, 1 kHz, 10 %
  • Clipping detector
  • Low distortion
  • Low output noise
  • Standby function
  • Mute function
  • Automute at min. supply voltage detection
  • Clipping
  • Out to GND short
  • Out to VS short
  • Thermal shutdown
  • Internally fixed gain (26 dB)
  • No external compensation
  • No bootstrap capacitors
  • Output short circuit to GND, to VS, across the load
  • Very inductive loads
  • Overrating chip temperature with soft 
  • thermal limiter
Circuit diagram:
4x25 W quad bridge car radio amplifier

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