DESCRIPTION
The TDA7381 is a new technology class AB Audio Power Amplifier in Flexiwatt 25 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.

■ HIGH OUTPUT POWER CAPABILITY:
   4 x 30W/4Ω MAX.
   4 x 25W/4Ω EIAJ
   4 x 18W/4Ω @ 14.4V, 1KHz, 10%
   4 x 15W/4Ω @ 13.2V, 1KHz, 10%
■ CLIPPING DETECTOR
■ LOW DISTORTION
■ LOW OUTPUT NOISE
■ ST-BY FUNCTION
■ MUTE FUNCTION
■ AUTOMUTE AT MIN. SUPPLY VOLTAGE DETECTION
■ DIAGNOSTICS FACILITY FOR:
   – CLIPPING
   – OUT TO GND SHORT
   – OUT TO VS SHORT
   – THERMAL SHUTDOWN
■ LOW EXTERNAL COMPONENT COUNT:
   – INTERNALLY FIXED GAIN (26dB)
   – 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