
STMicroelectronics
Description
The TDA7850A is a breakthrough MOSFET technology class AB audio power amplifier in Flexiwatt27 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 TDA7850A integrates a DC offset detector.
FEATUREs
■ High output power capability:
–4 x 50W/4Ωmax.
–4 x 30W/4Ω@ 14.4V, 1KHz, 10%
–4 x 80W/2Ωmax.
–4 x 55W/2Ω@ 14.4V, 1KHz, 10%
■ MOSFET output power stage
■ Excellent 2Ωdriving 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