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TDA7293HS

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21
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 Ω
@ THD =10%, with V
S
= ±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
680Ω
C2
22µF
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 10µF C4 10µF
1
STBY-GND
C5
22µF
713
14
6
158
-Vs -PWVs
BOOTSTRAP
OUT
+PWVs+Vs
C9 100nF C8 1000µF
-Vs
D97AU805A
+Vs
C7 100nF C6 1000µF
BUFFER DRIVER
11
BOOT
LOADER
12
5
VCLIP
CLIP DET
(*)
(*) see Application note
(
**
)
for SLAVE function
(**)
www.st.com
Contents TDA7293
2/21 Doc ID 6744 Rev 8
Contents
1 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Output Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Other Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Applications information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1 Applications suggestions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2 High efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3 Bridge application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.4 Modular application (ref. figure 12) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.5 Bootstrap capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.1 Vertically-mounted package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2 Horizontally-mounted package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
TDA7293 Pin connections
Doc ID 6744 Rev 8 3/21
1 Pin connections
Figure 2. Pin connections
1
2
3
4
5
6
7
9
10
11
8
BUFFER DRIVER
MUTE
STAND-BY
-V
S
(SIGNAL)
+V
S
(SIGNAL)
BOOTSTRAP
CLIP AND SHORT CIRCUIT DETECTOR
SIGNAL GROUND
NON INVERTING INPUT
INVERTING INPUT
STAND-BY GND
TAB CONNECTED TO PIN 8
13
14
15
12
-V
S
(POWER)
OUT
+V
S
(POWER)
BOOTSTRAP LOADER
D97AU806
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21

TDA7293HS

Mfr. #:
Buy TDA7293HS
Manufacturer:
STMicroelectronics
Description:
Audio Amplifiers 100W Audio Amplifier
Lifecycle:
New from this manufacturer.
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