TDA7381 Datasheet, PDF (1/10 Pages) STMicroelectronics – 4 x 25W QUAD BRIDGE CAR RADIO AMPLIFIER

®
TDA7381
4 x 25W QUAD BRIDGE CAR RADIO AMPLIFIER
PRELIMINARY DATA
HIGH OUTPUT POWER CAPABILITY:
4 x 30W/4Ω MAX.
4 x 25W/4Ω EIAJ
4 x 18W/4Ω @ 14.4V, 1KHz, 10%
4 x 15W/4Ω @ 13.2V, 1KHz, 10%
CLIPPING DETECTOR
LOW DISTORTION
LOW OUTPUT NOISE
ST-BY FUNCTION
MUTE FUNCTION
AUTOMUTE AT MIN. SUPPLY VOLTAGE DE-
TECTION
DIAGNOSTICS FACILITY FOR:
– CLIPPING
– OUT TO GND SHORT
– OUT TO V_S SHORT
– THERMAL SHUTDOWN
LOW EXTERNAL COMPONENT COUNT:
– INTERNALLY FIXED GAIN (26dB)
– NO EXTERNAL COMPENSATION
– NO BOOTSTRAP CAPACITORS
Protections:
OUTPUT SHORT CIRCUIT TO GND, TO V_S,
Flexiwatt25
ACROSS THE LOAD
VERY INDUCTIVE LOADS
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMAL LIMITER
LOAD DUMP VOLTAGE
FORTUITOUS OPEN GND
REVERSED BATTERY
ESD PROTECTION
DESCRIPTION
The TDA7381 is a new technology class AB
Audio Power Amplifier in Flexiwatt 25 package
designed for car radio applications.
BLOCK AND APPLICATION DIAGRAM
ST-BY
MUTE
IN1
0.1µF
Vcc1
IN2
0.1µF
IN3
0.1µF
IN4
0.1µF
AC-GND
0.1µF
SVR
47µF
Vcc2
TAB
S-GND
2.200µF
100nF
DIAGN. OUT
OUT1+
OUT1-
PW-GND
OUT2+
OUT2-
PW-GND
OUT3+
OUT3-
PW-GND
OUT4+
OUT4-
PW-GND
D93AU002C
October 1999
This is preliminary information on a new product now in development. Details are subject to change without notice.
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