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TDA7296
February 2005
1
FEATURES
■
MULTIPOWER BCD TECHNOLOGY
■
VERY HIGH OPERATING VOLTAGE RANGE
(±35V)
■
DMOS POWER STAGE
■
HIGH OUTPUT POWER (UP TO 60W MUSIC
POWER)
■
MUTING/STAND-BY FUNCTIONS
■
NO SWITCH ON/OFF NOISE
■
NO BOUCHEROT CELLS
■
VERY LOW DISTORTION
■
VERY LOW NOISE
■
SHORT CIRCUIT PROTECTION
■
THERMAL SHUTDOWN
2
DESCRIPTION
The TDA7296 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, Topclass TV).
Thanks to the wide voltage range and to the high
out current capability it is able to supply the high-
est power into both 4
Ω
and 8
Ω
loads even in pres-
ence of poor supply regulation, with high Supply
Voltage Rejection.
The built in muting function with turn on delay sim-
plifies the remote operation avoiding switching on-
off noises.
70V - 60W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY
Figure 2. Typical Application and Test Circuit
IN-
2
R2
680
Ω
C2
22
µ
F
C1 470nF
IN+
R1 22K
R6
2.7
Ω
C10
100nF
3
R3 22K
-
+
MUTE
STBY
4
VM
VSTBY
10
9
IN+MUTE
MUTE
STBY
R4 22K
THERMAL
SHUTDOWN
S/C
PROTECTION
R5 10K
C3 10
µ
F
C4 10
µ
F
1
STBY-GND
C5
22
µ
F
7
13
14
6
15
8
-Vs
-PWVs
BOOT-
STRAP
OUT
+PWVs
+Vs
C9 100nF
C8 1000
µ
F
-Vs
D93AU011
+Vs
C7 100nF
C6 1000
µ
F
Note: The Boucherot cell R6, C10, normally not necessary for a stable operation it could
be needed in presence of particular load impedances at V
S
<±25V.
Rev. 10
Figure 1. Package
Table 1. Order Codes
Part Number
Package
TDA7296
Multiwatt15V
TDA7296HS
Multiwatt15H (Short Leads)
Multiwatt15V
Multiwatt15H
(Short Leads)
