廬
TDA7482
25W MONO CLASS-D AMPLIFIER
25W OUTPUT POWER:
R
L
= 8鈩?4鈩? THD = 10%
HIGH EFFICIENCY
WIDE SUPPLY VOLTAGE RANGE (UP TO
鹵
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
R1
10K
+VCC
C5 100nF
-VCC
(Pin 14,15)
R2
10K
ST-BY
MUTE
C1
2.2
碌F
R3
30K
ST-BY/
MUTE
IN1
10
C6
100nF
V
CC POW
13
11
3
V
CC SIGN
C7
2200碌F
N.C.
4
BOOT
C11
100nF
OUT
C12
560pF
R5
150鈩?/div>
L1 60碌H
IN1
C2 0.33碌F
C4 4.7nF
C3
1nF
9
-
+
PRE
-
+
PWM
1
5
FEEDCAP
12
SGN-GND
7
6
FREQ
C8
270pF
R4 12K鈩?/div>
(R
F
)
C9
100nF
-VCC
C10
2200碌F
8
-V
CC SIGN
14,15
-V
CC POW
2
VREG
C14
470nF
8鈩?/div>
C15
100nF
BOOTDIODE
D96AU538C
June 1998
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