Datasheet STMicroelectronics TDA7850 — Datenblatt

TDA7850
4 x 50 W MOSFET quad bridge power amplifier
Features
■ High output power capability:
– 4 x 50 W/4 max.
– 4 x 30 W/4 @ 14.4 V, 1 kHz, 10 %
– 4 x 80 W/2 max.
– 4 x 55 W/2 @ 14.4V, 1 kHz, 10 % ■ MOSFET output power stage ■ Excellent 2 driving capability ■ Hi-Fi class distortion ■ Low output noise ■ ST-BY function ■ Mute function ■ Automute at min. supply voltage detection ■ Low external component count:
– Internally fixed gain (26 dB)
– No external compensation
– No bootstrap capacitors ■ On board 0.35 A high side driver Flexiwatt25
(Vertical) Flexiwatt25
(Horizontal) ■ ESD Protections: Description ■ Output short circuit to gnd, to Vs, across the
load ■ Very inductive loads ■ Overrating chip temperature with soft thermal
limiter ■ Output DC offset detection ■ Load dump voltage ■ Fortuitous open gnd ■ Reversed battery The TDA7850 is a breakthrough MOSFET
technology class AB audio power amplifier in
Flexiwatt 25 package designed for high power car
radio. The fully complementary P-Channel/NChannel output structure allows a rail to rail
output voltage swing which, combined with high
output current and minimized saturation losses
sets new power references in the car-radio field,
with unparalleled distortion performances.
The TDA7850 integrates a DC offset detector. Table 1. Device summary …