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ST Microelectronics - 25W MONO CLASS-D AMPLIFIER

Numéro de référence TDA7482
Description 25W MONO CLASS-D AMPLIFIER
Fabricant ST Microelectronics 
Logo ST Microelectronics 





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TDA7482 fiche technique
® TDA7482
25W MONO CLASS-D AMPLIFIER
25W OUTPUT POWER:
RL = 8/4; THD = 10%
HIGH EFFICIENCY
WIDE SUPPLY VOLTAGE RANGE (UP TO
±25V)
SPLIT SUPPLY
OVERVOLTAGE PROTECTION
ST-BY AND MUTE FEATURES
SHORT CIRCUIT PROTECTION
THERMAL OVERLOAD PROTECTION
DESCRIPTION
The TDA7482 is an audio class-D amplifier as-
sembled in Multiwatt15 package specially de-
signed for high efficiency applications mainly for
TV and Home Stereo sets.
Figure 1: Test and Application circuit.
Multiwatt15
ORDERING NUMBER: TDA7482
+5V +VCC
R1
10K
R2
10K
ST-BY
MUTE
C1
2.2
µF
IN1
C2 0.33µF
C4 4.7nF
R3
30K
ST-BY/
MUTE
IN1
C3
1nF
FEEDCAP
SGN-GND
C5 100nF
-VCC
(Pin 14,15)
N.C.
VCC POW
10 4
13
C6
100nF
VCC SIGN
11
9
-
PRE
+
5
-
PWM
+
3
1
7
6
FREQ
8
-VCC SIGN
12
14,15
2
-VCC POW
C7
2200µF
BOOT
OUT
VREG
C11
100nF L1 60µH
C12
560pF
R5
150
C14
470nF
BOOTDIODE
C15
100nF
C8
270pF
R4 12K
(RF)
-VCC
D96AU538C
C9
100nF
C10
2200µF
8
June 1998
1/6

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