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TDA7385：Quad BTL output power amplifier with stand-by and mute inputs, clip detection

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.

Key Features

• 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:
  • Clipping
  • 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
• 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

Product Specifications

Selection Guides

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Quality & Reliability