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TDA7294S Datasheet

  • TDA7294S

  • 100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY

  • 13頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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TDA7294S
100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY
VERY HIGH OPERATING VOLTAGE RANGE
(鹵45V)
DMOS POWER STAGE
HIGH OUTPUT POWER (100W @ THD =
10%, R
L
= 8鈩? V
S
=
鹵40V
MUSIC POWER)
MUTING/STAND-BY FUNCTIONS
NO SWITCH ON/OFF NOISE
VERY LOW DISTORTION
VERY LOW NOISE
SHORT CIRCUIT PROTECTION
THERMAL SHUTDOWN
CLIP DETECTOR
MODULARITY (MORE DEVICES CAN BE
EASILY CONNECTED IN PARALLEL TO
DRIVE VERY LOW IMPEDANCES)
DESCRIPTION
The TDA7294S 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-
Figure 1:
Typical Application and Test Circuit
MULTIPOWER BCD TECHNOLOGY
Multiwatt15
ORDERING NUMBER:
TDA7294SV
class TV). Thanks to the wide voltage range and
to the high out current capability it is able to sup-
ply the highest power into both 4鈩?and 8鈩?loads.
The built in muting function with turn on delay
simplifies the remote operation avoiding switching
on-off noises.
Parallel mode is made possible by connecting
more device through of pin11. High output power
can be delivered to very low impedance loads, so
optimizing the thermal dissipation of the system.
C7 100nF
R3 22K
C2
22碌F
+Vs
R2
680鈩?/div>
C1 470nF
IN-
2
7
-
BUFFER DRIVER
11
+Vs
C6 1000碌F
+PWVs
13
14
OUT
BOOT
LOADER
C5
22碌F
6
5
BOOTSTRAP
CLIP DET
VCLIP
(*)
IN+
3
+
12
R1 22K
SGND
(**)
VMUTE
R5 10K
MUTE
10
MUTE
VSTBY
R4 22K
1
STBY-GND
C3 10碌F
C4 10碌F
8
-Vs
C9 100nF
-Vs
15
-PWVs
C8 1000碌F
STBY
9
STBY
THERMAL
SHUTDOWN
S/C
PROTECTION
4
D97AU805A
(*) see Application note
(**) for SLAVE function
June 2000
1/13

TDA7294S 產(chǎn)品屬性

  • 500

  • 集成電路 (IC)

  • 線性 - 音頻放大器

  • -

  • AB 類

  • 1-通道（單聲道）

  • 100W x 1 @ 8 歐姆

  • ±12 V ~ 45 V

  • 消除爆音，靜音，短路和熱保護，待機

  • 通孔

  • 15-Multiwatt

  • Multiwatt-15（垂直，彎曲和錯列引線）

  • 管件

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