TDA7388
4 X 41W QUAD BRIDGE CAR RADIO AMPLIFIER
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FEATURES
HIGH OUTPUT POWER CAPABILITY:
4 x 41W/4Ω MAX.
4 x 25W/4Ω @ 14.4V, 1KHz, 10%
LOW 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
Figure 1. Package
Flexiwatt25
Table 1. Order Codes
Part Number
TDA7388
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Package
Flexiwatt25
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REVERSED BATTERY
ESD
3
DESCRIPTION
2
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PROTECTIONS:
OUTPUT SHORT CIRCUIT TO GND, TO V
S
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ACROSS THE LOAD
VERY INDUCTIVE LOADS
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMAL LIMITER
LOAD DUMP VOLTAGE
FORTUITOUS OPEN GND
The TDA7388 is a new technology class AB Audio
Power Amplifier in Flexiwatt 25 package designed
for high end car radio applications.
Thanks to the fully complementary PNP/NPN out-
put configuration the TDA7388 allows a rail to rail
output voltage swing with no need of bootstrap ca-
pacitors. The extremely reduced components
count allows very compact sets.
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Figure 2. Block and Application Diagram
Vcc1
Vcc2
470µF
ST-BY
N.C.
OUT1+
IN1
0.1µF
OUT1-
PW-GND
OUT2+
IN2
0.1µF
OUT2-
PW-GND
OUT3+
IN3
0.1µF
OUT3-
PW-GND
OUT4+
IN4
0.1µF
AC-GND
0.47µF
SVR
47µF
D99AU1018
100nF
MUTE
OUT4-
PW-GND
TAB
S-GND
July 2005
Rev. 1
1/10
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