TDA7851L
4 x 45 W MOSFET quad bridge power amplifier
Features
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Multipower BCD technology
High output power capability:
– 4 x 45 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
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Flexiwatt 25
Fortuitous open GND
Reversed battery
ESD
Description
The TDA7851L is a breakthrough MOSFET
technology class AB audio power amplifier in
Flexiwatt25 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.
Protections
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Output short circuit to Gnd, to Vs, across the
load
Very inductive loads
Overrating chip temperature with soft thermal
limiter
Load dump voltage
Device summary
Order code
TDA7851L
Table 1.
Package
Flexiwatt 25
Packing
Tube
May 2009
Rev 1
1/15
1
SAMES [ SAMES ]
