TDA7481 데이터 시트보기 (PDF) - STMicroelectronics
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TDA7481 Datasheet PDF : 6 Pages
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TDA7481
18W MONO CLASS-D AMPLIFIER
18W OUTPUT POWER:
RL = 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
t(s) DESCRIPTION
uc The TDA7481 is an audio class-D amplifier as-
d sembled in Multiwatt15 package specially de-
ro signed for high efficiency applications mainly for
TV and Home Stereo sets.
te P Figure 1: Test and Application Circuit.
Multiwatt15
ORDERING NUMBER: TDA7481
bsole +5V
+VCC
O R1
- 10K
t(s) R2
10K
R3
c 30K
C5 100nF
-VCC
(Pin 14,15)
N.C.
VCC POW
C6
100nF
VCC SIGN
C7
2200µF
u ST-BY MUTE
10
4
d C1 ST-BY/
13
11
ro 2.2
MUTE
µF
3 BOOT
IN1 9
P IN1
-
PRE
te C2 0.33µF
C3
+
C4 4.7nF
1nF
le 5
o FEEDCAP
C11
-
PWM
+
1
OUT
100nF L1 60µH
C12
560pF C14
8Ω
R5 470nF
150Ω
s VREG
12
Ob SGN-GND
7
C15
2
100nF
6
8
14,15
BOOTDIODE
FREQ
-VCC SIGN
-VCC POW
C8
270pF
R4 12KΩ
(RF)
-VCC
D96AU534C
C9
100nF
C10
2200µF
September 2003
1/6
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