TDA7850 Datasheet, PDF (1/18 Pages) STMicroelectronics – 4 x 50 W MOSFET quad bridge power amplifier plus HSD

TDA7850
4 x 50 W MOSFET quad bridge power amplifier plus HSD
Features
■ High output power capability:
– 4 x 50W/4Ω max.
– 4 x 30W/4Ω @ 14.4V, 1KHz, 10%
– 4 x 80W/2Ω max.
– 4 x 55W/2Ω @ 14.4V, 1KHz, 10%
■ MOSFET output power stage
■ Excellent 2Ω 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 (26dB)
– No external compensation
– No bootstrap capacitors
■ On board 0.35A high side driver
Protections:
■ Output short circuit to gnd, to V_s, 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
Flexiwatt25
(Vertical)
Flexiwatt25
(Horizontal)
■ ESD
Description
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/N-
Channel 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
Order code
TDA7850
TDA7850H
Package
Flexiwatt25 (Vertical)
Flexiwatt25 (Horizontal
Packing
Tube
Tube
October 2007
Rev 3
1/18
www.st.com
1