文档介绍：TDA7851L
4 x 48 W MOSFET quad bridge power amplifier
Datasheet − production data
Features
■ Multipower BCD technology
■ High output power capability:
–4 x 48 W/4 Ω Max.
–4 x 28 W/4 Ω @ V, 1 kHz, 10 %
–4 x 72 W/2 Ω Max.
■ MOSFET output power stage
'!0'03
■
Excellent 2 Ω driving capability Flexiwatt 25
■ Hi-Fi class distortion
■ Low output noise
■ Standby function
■ Mute function
– Reversed battery
■ Automute at min. supply voltage detection
– ESD
■ Low external component count:
– Internally fixed gain (26 dB) Description
– No external compensation
– No bootstrap capacitors The TDA7851L is a breakthrough MOSFET
technology class AB audio power amplifier in
■ Protections:
Flexiwatt25 package designed for high power car
– Output short circuit to GND, to VS, across radio.
the load
– Very inductive loads The fully complementary P-Channel/N-Channel
output structure allows a rail-to-rail output voltage
– Overrating chip temperature with soft
swing which, combined with high output current
thermal limiter
and minimized saturation losses sets new power
– Load dump voltage references in the car-radio field, with unparalleled
– Fortuitous open GND distortion performances.
Table 1. Device summary