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
DescriptionVersionSize
DS2452: 4 x 42 W quad bridge car radio amplifier6.0440 KB
Selection Guides
DescriptionVersionSize
Power amplifiers and voltage regulators750 KB
Sample & Buy
Part NumberQuantityUnit Price (US$) *PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)ECCN (EU)ECCN (US)Country of Origin
TDA7385H10003.81FLEXIWATT 25 HBTube--NECEAR99CHINA
E-TDA738510003.08FLEXIWATT FM2 25Tube--NECEAR99CHINA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
TDA7385HFLEXIWATT 25 HBAutomotiveEcopack2ipc1752_h8qi-l092cb6.pdf
E-TDA7385FLEXIWATT FM2 25AutomotiveEcopack2ipc-wspc-1752a_h94w-l092cb6.pdf
ipc-wspc-1752a_h94w-l092cb6.xml
4 x 42 W quad bridge car radio amplifier TDA7385
circuit_diagram_8160_thumbnail.png TDA7385
ST SPI protocol L99PM72PXP
ipc1752_h8qi-l092cb6.pdf TDA7385
ipc-wspc-1752a_h94w-l092cb6.pdf TDA7385
ipc-wspc-1752a_h94w-l092cb6.xml TDA7385