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TDA7294的详细信息
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TDA7294
100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY
VERY HIGH OPERATING VOLTAGE RANGE
(±40V)
MULTIPOWER BCD TECHNOLOGY
DMOS POWER STAGE
HIGH OUTPUT POWER (UP TO 100W MU-
SIC POWER)
MUTING/STAND-BY FUNCTIONS
NO SWITCH ON/OFF NOISE
NO BOUCHEROT CELLS
VERY LOW DISTORTION
Multiwatt15
ORDERING NUMBER: TDA7294V
VERY LOW NOISE
SHORT CIRCUIT PROTECTION
THERMAL SHUTDOWN
to the high out current capability it is able to sup-
ply the highest power into both 4Ω and 8Ω loads
even in presence of poor supply regulation, with
high Supply Voltage Rejection.
The built in muting function with turn on delay
simplifies the remote operation avoiding switching
on-off noises.
DESCRIPTION
The TDA7294 is a monolithic integrated circuit in
Multiwatt15 package, intended for use as audio
class AB amplifier in Hi-Fi field applications
(Home Stereo, self powered loudspeakers, Top-
class TV). Thanks to the wide voltage range and
Figure 1: Typical Application and Test Circuit
C7 100nF
+Vs C6 1000µF
R3 22K
+Vs
7
+PWVs
13
C2
R2
22µF
TDA7294
680Ω
IN-
2
3
-
14
6
OUT
C1 470nF
IN+
+
C5
22µF
R1 22K
IN+MUTE
4
BOOTSTRAP
R5 10K MUTE
STBY
10
9
VM
MUTE
STBY
1
THERMAL
SHUTDOWN
S/C
PROTECTION
VSTBY
R4 22K
8
15
STBY-GND
-Vs
-PWVs
C3 10µF
C4 10µF
C9 100nF
C8 1000µF
D93AU011
-Vs
February 1996
1/16
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