Showing posts with label 4x25W. Show all posts
Showing posts with label 4x25W. Show all posts

7/22/2014

4x25 W quad bridge car radio amplifier TDA7381

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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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4 × 25 W BTL quad car radio power amplifier

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General Description

The TDA8568Q is a integrated class-B output amplifier in a 23-lead Single-In-Line (SIL) plastic power package. It contains four amplifiers in BTL configuration, each with a gain of 40 dB. The output power is 4 × 25 W in a 4 Ω load.

Circuit Diagram
4 × 25 W BTL quad car radio power amplifier


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