The TDA7385 is an AB class audio power amplifier, packaged in Flexiwatt 25 and designed for high end car radio applications.
Based on a fully complementary PNP/NPN
configuration, the TDA7385 allows a rail to rail output voltage swing with no need of bootstrap capacitors. The extremely reduced boundary 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 42 W / 4 Ω max.
– 4 x 23 W / 4 Ω @ 14.4 V, 1 kHz, 10 %
■ Clipping detector
■ Low distortion
■ Low output noise
■ Standby function
■ Mute function
■ Automute at min. supply voltage detection
■ Diagnostics facility for:
– Out to GND short
– Out to VS short
– Thermal shutdown
■ Low external component count:
– 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
– Load dump voltage
– Fortuitous open GND
– Reversed battery