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