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TDA7293 数据表(PDF) 1 Page - STMicroelectronics

部件名 TDA7293
功能描述  120-volt, 100-watt, DMOS audio amplifier with mute and standby
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7293 数据表(HTML) 1 Page - STMicroelectronics

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September 2010
Doc ID 6744 Rev 8
1/21
21
TDA7293
120-volt, 100-watt, DMOS audio amplifier
with mute and standby
Features
Multipower BCD technology
Very high operating voltage range (±50 V)
DMOS power stage
High output power (100 W into 8
@ THD =10%, with VS = ±40 V)
Muting and stand-by functions
No switch on/off noise
Very low distortion
Very low noise
Short-circuit protected (with no input signal
applied)
Thermal shutdown
Clip detector
Modularity (several devices can easily be
connected in parallel to drive very low
impedances)
Description
The TDA7293 is a monolithic integrated circuit in
Multiwatt15 package, intended for use as audio
class AB amplifier in Hi-Fi field applications, such
as home stereo, self powered loudspeakers and
Topclass TV. Thanks to the wide voltage range
and to the high output current capability it is able
to supply the highest power into both 4-
Ω and 8-Ω
loads.
The built-in muting function with turn-on delay
simplifies the remote operation avoiding on-off
switching noises.
Parallel mode is possible by connecting several
devices and using pin11. High output power can
be delivered to very low impedance loads, so
optimizing the thermal dissipation of the system
Figure 1.
TDA7293 block diagram
Table 1.
Device summary
Order code
Package
TDA7293V
Multiwatt15V
TDA7293HS
Multiwatt15H
Multiwatt15V
Multiwatt15H
IN-
2
R2
680
C2
22
µF
C1 470nF
IN+
R1 22K
3
R3 22K
-
+
MUTE
STBY
4
VMUTE
VSTBY
10
9
SGND
MUTE
STBY
R4 22K
THERMAL
SHUTDOWN
S/C
PROTECTION
R5 10K
C3 10
µF
C4 10
µF
1
STBY-GND
C5
22
µF
713
14
6
15
8
-Vs
-PWVs
BOOTSTRAP
OUT
+PWVs
+Vs
C9 100nF
C8 1000
µF
-Vs
D97AU805A
+Vs
C7 100nF
C6 1000
µF
BUFFER DRIVER
11
BOOT
LOADER
12
5
VCLIP
CLIP DET
(*)
(*) see Application note
(**) for SLAVE function
(**)
www.st.com


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