Description
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.
Features
â High output power capability:
â 4 x 42 W / 4 Ω max.
â 4 x 23 W / 4 Ω @ 14.4 V, 1 kHz, 10 %
â Clipping detector
â Low distortion
â Low output noise
â Standby function
â Mute function
â Automute at min. supply voltage detection
â Diagnostics facility for:
â Clipping
â Out to GND short
â Out to VS short
â Thermal shutdown
â Low external component count:
â Internally fixed gain (26 dB)
â No external compensation
â No bootstrap capacitors
â Protections:
â Output short circuit to GND, to VS, across the load
â Very inductive loads
â Overrating chip temperature with soft thermal limiter
â Load dump voltage
â Fortuitous open GND
â Reversed battery
â ESD
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