Description

The TDA7851F is a breakthrough MOSFET technology class AB audio power amplifier, designed for high-power car radio.

The fully complementary P-Channel/N-Channel output structure allows a rail-to-rail output voltage swing. This, combined with high output current and minimized saturation losses, sets new power references in the car-radio field, with unparalleled

distortion performance.

Features

Multipower BCD technology

High output power capability:

– 4 x 48 W/4 Ω max.

– 4 x 28 W/4 Ω @ 14.4 V, 1 kHz, 10%

– 4 x 72 W/2 Ω max.

MOSFET output power stage

Excellent 2 Ω driving capability

Hi-Fi class distortion

Low output noise

Standby function

Mute function

Automute at min. supply voltage detection

Low external component count:

– Internally fixed gain (26 dB)

– No external compensation

– No bootstrap capacitors

Output DC offset detector

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