TDA7294SV ST Microelectronics, TDA7294SV Datasheet

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TDA7294SV

Manufacturer Part Number
TDA7294SV
Description
100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY
Manufacturer
ST Microelectronics
Datasheet
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
June 2000
VERY HIGH OPERATING VOLTAGE RANGE
( 45V)
DMOS POWER STAGE
HIGH OUTPUT POWER (100W @ THD =
10%, R
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)
100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY
VMUTE
VSTBY
L
= 8 , V
C3 10 F
22 F
R5 10K
R4 22K
S
C2
R1 22K
= 40V MUSIC POWER)
C1 470nF
680
R2
(*) see Application note
(**) for SLAVE function
SGND
(**)
MUTE
STBY
IN+
IN-
C4 10 F
R3 22K
2
3
4
10
9
MUTE
STBY
1
STBY-GND
C7 100nF
+
-
+Vs
7
8
-Vs
C9 100nF
BUFFER DRIVER
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 and 8 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.
SHUTDOWN
THERMAL
11
MULTIPOWER BCD TECHNOLOGY
ORDERING NUMBER: TDA7294SV
-Vs
+Vs
15
-PWVs
PROTECTION
+PWVs
13
S/C
C6 1000 F
C8 1000 F
Multiwatt15
14
12
6
5
D97AU805A
TDA7294S
OUT
BOOT
LOADER
BOOTSTRAP
CLIP DET
22 F
C5
VCLIP
(*)
1/13

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TDA7294SV Summary of contents

Page 1

... SLAVE function June 2000 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 and 8 loads. The built in muting function with turn on delay simplifies the remote operation avoiding switching on-off noises ...

Page 2

TDA7294S PIN CONNECTION (Top view) TAB CONNECTED TO PIN 8 QUICK REFERENCE DATA Symbol Parameter V Supply Voltage Operating S G Closed Loop Gain LOOP Output Power P tot SVR Supply Voltage Rejection ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage ...

Page 3

ELECTRICAL CHARACTERISTICS (Refer to the Test Circuit kHz; unless otherwise specified). g amb Symbol Parameter Operating Supply Range Quiescent Current q I Input Bias Current ...

Page 4

TDA7294S Figure 2: Typical Application P.C. Board and Component Layout (scale 1:1) 4/13 ...

Page 5

APPLICATION SUGGESTIONS (see Test and Application Circuits of the Fig. 1) The recommended values of the external components are those shown on the application circuit of Fig- ure 1. Different values can be used; the following table can help the ...

Page 6

TDA7294S INTRODUCTION In consumer electronics, an increasing demand has arisen for very high power monolithic audio amplifiers able to match, with a low cost, the per- formance obtained from the best discrete de- signs. The task of realizing this linear ...

Page 7

Figure 4: Turn ON/OFF Suggested Sequence +Vs (V) +40 -40 - (mV) V ST-BY 5V PIN #9 (V) V MUTE 5V PIN #10 ( (mA) V OUT (V) OFF ST-BY In addition to the overload protection ...

Page 8

TDA7294S The TDA7294S is a monolithic MOS power ampli- fier which can be operated at 90V supply voltage (100V with no signal applied) while delivering out- put currents up to 6.5 A. This allows the use of this device as ...

Page 9

Figure 6: High Efficiency Application Circuit +50V +25V R20 20K 1000 F 100nF 1000 F 100nF 330nF 63V 35V R22 R1 10K GND R23 R2 10K R21 C10 20K 1000 F ...

Page 10

TDA7294S Figure 6b: PCB - Solder Side of the fig. 6. Figure 7: Modular Application Circuit R3 22K MASTER 680 IN- C1 470nF IN+ R1 22K SGND VMUTE R5 10K MUTE VSTBY STBY R4 22K C4 ...

Page 11

Figure 8a: Modular Application P.C. Board and Component Layout (scale 1:1) (Component SIDE) Figure 8b: Modular Application P.C. Board and Component Layout (scale 1:1) (Solder SIDE) TDA7294S 11/13 ...

Page 12

TDA7294S mm DIM. MIN. TYP. MAX. MIN 2. 0.49 0.55 0.019 F 0.66 0.75 0.026 G 1.02 1.27 1.52 0.040 G1 17.53 17.78 18.03 0.690 H1 19.6 0.772 H2 20.2 L 21.9 ...

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Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. ...

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