TDA7482 Datasheet, PDF (1/6 Pages) STMicroelectronics – 25W MONO CLASS-D AMPLIFIER

®
TDA7482
25W MONO CLASS-D AMPLIFIER
25W OUTPUT POWER:
R_L = 8Ω/4Ω; 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
R3
10K
30K
C5 100nF
-VCC
(Pin 14,15)
N.C.
V_{CC POW}
C6
100nF
V_{CC SIGN}
C7
2200µF
ST-BY MUTE
10
C1 ST-BY/
2.2
MUTE
µF
IN1 9
IN1
C2 0.33µF
C3
C4 4.7nF
1nF
5
FEEDCAP
4
13
-
PRE
+
11
-
PWM
+
3 BOOT
C11
1
100nF _{L1 60µH}
OUT
C12
560pF _C14
8Ω
R5 _470nF
150Ω
VREG
12
C15
SGN-GND
7
2
100nF
6
8
14,15
BOOTDIODE
FREQ
-V_{CC SIGN}
-V_{CC POW}
C8
270pF
R4 12KΩ
(R_F)
-VCC
D96AU538C
C9
100nF
C10
2200µF
June 1998
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