TDA7294V STMicroelectronics, TDA7294V Datasheet

IC AMP AUDIO 100W AB MULTIWATT15

TDA7294V

Manufacturer Part Number
TDA7294V
Description
IC AMP AUDIO 100W AB MULTIWATT15
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet

Specifications of TDA7294V

Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
100W x 1 @ 8 Ohm
Voltage - Supply
±10 V ~ 40 V
Features
Depop, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type
Through Hole
Package / Case
Multiwatt-15 (Vertical, Bent and Staggered Leads)
Product
Class-AB
Output Power
100 W
Available Set Gain
80 dB
Thd Plus Noise
0.01 %
Operating Supply Voltage
50 V
Supply Current
65 mA
Maximum Power Dissipation
50000 mW
Maximum Operating Temperature
+ 70 C
Mounting Style
Through Hole
Audio Load Resistance
8 Ohms
Dual Supply Voltage
+/- 12 V, +/- 15 V, +/- 18 V, +/- 24 V, +/- 28 V
Input Bias Current (max)
0.5 uA
Input Offset Voltage
+ 0.5 V to - 0.5 V
Input Signal Type
Differential
Minimum Operating Temperature
0 C
Output Signal Type
Single
Supply Type
Dual
Amplifier Class
AB
No. Of Channels
1
Supply Voltage Range
± 10V To ± 40V
Load Impedance
4ohm
Operating Temperature Range
0°C To +70°C
Amplifier Case Style
Multiwatt15
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-2171-5

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April 2003
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
VSTBY
VERY HIGH OPERATING VOLTAGE RANGE
( 40V)
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
VERY LOW NOISE
SHORT CIRCUIT PROTECTION
THERMAL SHUTDOWN
VM
100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY
Note: The Boucherot cell R6, C10, normally not necessary for a stable operation it could
22 F
®
C2
R1 22K
C3 10 F
be needed in presence of particular load impedances at V
R4 22K
C1 470nF
R5 10K
680
R2
IN+MUTE
MUTE
STBY
IN+
IN-
C4 10 F
R3 22K
2
3
4
10
9
MUTE
STBY
1
STBY-GND
C7 100nF
-
+
to the high out current capability it is able to sup-
ply the highest power into both 4
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.
+Vs
7
8
-Vs
C9 100nF
SHUTDOWN
THERMAL
S
<±25V.
MULTIPOWER BCD TECHNOLOGY
Multiwatt15V
TDA7294V
-Vs
ORDERING NUMBERS:
+Vs
15
-PWVs
PROTECTION
+PWVs
13
S/C
C6 1000 F
C8 1000 F
14
6
Multiwatt15H
TDA7294
TDA7294HS
22 F
OUT
BOOT-
STRAP
C5
D93AU011
and 8
100nF
2.7
C10
loads
R6
1/17

Related parts for TDA7294V

TDA7294V Summary of contents

Page 1

... C7 100nF R3 22K + MUTE THERMAL 9 SHUTDOWN STBY 1 8 STBY-GND -Vs C9 100nF <±25V. S TDA7294 MULTIPOWER BCD TECHNOLOGY Multiwatt15V Multiwatt15H ORDERING NUMBERS: TDA7294V TDA7294HS +Vs C6 1000 F +PWVs 13 14 OUT BOOT- STRAP S/C PROTECTION 15 -PWVs C8 1000 F D93AU011 -Vs and 8 loads R6 2.7 C10 100nF 1/17 ...

Page 2

TDA7294 PIN CONNECTION (Top view) TAB connected to -V BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage (No Signal Output Peak Current O P Power Dissipation T tot T Operating Ambient Temperature Range ...

Page 3

THERMAL DATA Symbol R Thermal Resistance Junction-case th j-case ELECTRICAL CHARACTERISTICS (Refer to the Test Circuit 25° kHz; unless otherwise specified. g amb Symbol Parameter V Supply Range S I ...

Page 4

TDA7294 Figure 2: P.C.B. and components layout of the circuit of figure 1. (1:1 scale) Note: The Stand-by and Mute functions can be referred either to GND or -VS. On the P.C.B. is possible to set both the configuration through ...

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

TDA7294 TYPICAL CHARACTERISTICS (Application Circuit of fig 1 unless otherwise specified) Figure 3: Output Power vs. Supply Voltage. Figure 5: Output Power vs. Supply Voltage Figure 7: Distortion vs. Frequency 6/17 Figure 4: Distortion vs. Output Power Figure 6: Distortion ...

Page 7

TYPICAL CHARACTERISTICS (continued) Figure 9: Quiescent Current vs. Supply Voltage Figure 11: Mute Attenuation vs. V Figure 13: Power Dissipation vs. Output Power Figure 10: Supply Voltage Rejection vs. Frequency Figure 12: St-by Attenuation vs. V pin10 Figure 14: Power ...

Page 8

TDA7294 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 9

Figure 16: Turn ON/OFF Suggested Sequence +Vs (V) +35 -35 - (mV) V ST-BY PIN #9 (V) V MUTE PIN #10 ( (mA) V OUT (V) OFF ST-BY In addition to the overload protection described above, ...

Page 10

TDA7294 APPLICATION INFORMATION HIGH-EFFICIENCY Constraints of implementing high power solutions are the power dissipation and the size of the power supply. These are both due to the low effi- ciency of conventional AB class amplifier ap- proaches. Here below (figure ...

Page 11

Figure 19: P.C.B. and Components Layout of the Circuit of figure 18 (1:1 scale) diodes Z1,Z2 and resistors R7,R8 define the mini- mum drop across the power MOS transistors of the TDA7294. L1, L2, L3 and the snubbers C9, R1 ...

Page 12

TDA7294 Figure 20: Power Dissipation vs. Output Power Figure 22: Distortion vs. Output Power Figure 24: Power Dissipation vs. Output Power 12/17 Figure 21: Distortion vs. Output Power HIGH-EFFICIENCY Figure 23: Power Dissipation vs. Output Power ...

Page 13

BRIDGE APPLICATION Another application suggestion is the BRIDGE configuration, where two TDA7294 are used, as shown by the schematic diagram of figure 25. In this application, the value of the load must not be lower than 8 Ohm for dissipation ...

Page 14

TDA7294 Figure 26: Frequency Response of the Bridge Application Figure 28: Distortion vs. Output Power 14/17 Figure 27: Distortion vs. Output Power ...

Page 15

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 22.2 ...

Page 16

TDA7294 mm DIM. MIN. TYP. MAX 2.65 C 1.6 E 0.49 0.55 F 0.66 0.75 G 1.14 1.27 1.4 G1 17.57 17.78 17.91 H1 19.6 H2 20.2 L 20.57 L1 18.03 L2 2.54 L3 17.25 17.5 17.75 ...

Page 17

... This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. © 2003 STMicroelectronics – Printed in Italy – All Rights Reserved Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States ...

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