AmplifierCircuits

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

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