TDA7385 Series

4 x 42 W quad bridge car radio amplifier

Catalog

4 x 42 W quad bridge car radio amplifier

Part	Mounting Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Output Type	Max Output Power x Channels @ Load	Type	Supplier Device Package	Features	Package / Case
STMicroelectronics E-TDA7385
STMicroelectronics TDA7385H
STMicroelectronics E-TDA7385
STMicroelectronics TDA7385H
STMicroelectronics TDA7385H	Through Hole	8 V	18 V	4-Channel (Quad)	4 Ohm, 4, 37 W	Class AB	25-Flexiwatt (Vertical)	Mute, Short-Circuit and Thermal Protection, Standby	25-Flexiwatt, Formed Leads

Catalog

4 x 42 W quad bridge car radio amplifier

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 %

• Diagnostics facility for:

- Clipping

- Out to GND short

- Out to VSshort

- 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

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.