SGS Thomson Microelectronics TDA7495S Datasheet
®
11+11W OUTPUT POWER
R
= 8Ω @THD = 10% VCC = 28V
L
ST-BY AND MUTE FUNCTIONS
LOW TURN-ON TURN-OFF POP NOIS E
NO BOUCHEROT CELL
NO ST-BY RC INPUT NETWORK
SINGLE SUPPLY RANGING UP TO 35V
SHORT CIRCUIT PROTECTION
THERMAL OVERLOAD PROTECTION
INTERNALLY FIXED GAIN
SOFT CLIPPING
MULTIWATT 15 PACKAGE
DESCRIPTION
The TDA7495S is a stereo 11+11W class AB
power amplifier assembled in the @ Multiwatt 15
package, specially designed for high quality
sound, TV applications.
TDA7495S
11W+11W AMPLIFIER
MULTIPOWER BI50II TECHNOLOGY
Multiwatt15
ORDERING NUMBER:
Features of the TDA7495S include linearStand-by
and mute functions.
TDA7495S
BLOCK AND APPLICATION DIAGRAM
INR
470nF
S_GND
PW_GND
INL
470nF
SVR 7
470µF
1
8
11
5
30K
+
OP AMP
MUTE/STBY
PROTECTIONS
+
-30K
OP AMP
V
13
S
1000µF
OUTR
STBY
MUTE
OUTL
1000µF
PW_GND
D99AU1015
10K
1µF
S1 ST-BY
+5V
S_GND
+5V
S2 MUTE
60K
14
9
10
12
15
Jenuary 2000
1/11
TDA7495S
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
S
V
IN
P
tot
T
amb
, T
T
stg
(1) Operation between -20 to 85 °C guaranteed by correlation with 0 to 70°C.
DC Supply Voltage 40 V
Maximum Input Voltage 8 Vpp
Total Power Dissipation (Tamb = 70°C) 20 W
Ambient Operating Temperature (1) -20 to 85 °C
Storage and Junction Temperature -40 to 150 °C
j
PIN CONNECTION
(Top view)
15
14
13
12
11
10
PW_GND
OUTR
V
S
OUTL
PW_GND
MUTE
9
8
7
6
5
4
3
2
1
D99AU1016
STBY
S_GND
SVR
N.C.
INL
N.C.
N.C.
N.C.
INR
THERMAL DATA
Symbol Parameter Value Unit
R
th j-case
R
th j-amb
Thermal Resistance Junction-case Typ. = 2 Max. = 2.8 °C/W
Thermal Resistance Junction-ambient max 35 °C/W
ELECTRICAL CHARACTERISTICS
(Refer to the te s t ci r cui t V
= 20V; RL = 8Ω, Rg = 50Ω, T
S
= 25°C).
amb
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
DCV
S
I
q
Supply Voltage Range 11 35 V
Total Quiescent Current 70 100 mA
Output DC Offset Referred to
OS
No Input Signal -750 750 mV
SVR Potenial
V
O
P
O
Quiescent Output Voltage VS = 20V 8.5 10 11.5 V
Output Power THD = 10%; RL = 8Ω; VS = 28V 9.5 11 W
THD = 1%; RL = 8Ω; VS = 28V 7.5 8.8 W
THD = 10%; R
= 4Ω; VS = 20V 7 8.7 W
L
THD = 1%; RL = 4Ω; VS = 20V 5 6.8 W
THD = 10%; R
THD = 1%; R
= 8Ω; VS = 18V 3.5 4 W
L
= 8Ω; VS = 18V 2.2 3.2 W
L
2/11
TDA7495S
ELECTRICAL CHARACTERISTICS
(continued)
Symbol Parameter Test Condition Min. Typ. Max. Unit
THD Total Harmonic Distortion G
I
peak
V
A
Min VOL
in
Output Peak Current (internally limited) 1.7 2.4 A
Input Signal 2.8 Vrms
Attenuation at Minimum Volume Vol Ctrl < 0.5V 80 dB
= 30dB; PO = 1W; f = 1KHz; 0.4 %
V
BW 0.6 MHz
e
N
Total Output Noise f = 20Hz to 22KHz
60 150 µV
Play
f = 20Hz to 22KHz
60 150 µV
Mute
SR Slew Rate 5 8 V/µs
R
i
SVR Supply Voltage Rejection f = 1kHz; max volume
T
M
T
s
Input Resistance 22.5 30 KΩ
35 39 dB
C
= 470µF; V
SVR
f = 1kHz; max attenuation
C
= 470µF; V
SVR
RIP
RIP
= 1V
=1V
rms
55 65 dB
rms
Thermal Muting 150 °C
Thermal Shut-down 160 °C
MUTE STAND-BY & INPUT SELECTION FUNCTIONS
V
ST-BY
V
MUTE
I
qST-BY
A
MUTE
I
stbyBIAS
Stand-by threshold 2.3 2.5 2.7 V
Mute Threshold 2.3 2.5 2.7 V
Quiescent Current @ Stand-by 0.6 1 mA
Mute Attenuation 50 65 dB
Stand-by bias current Stand by on V
V
ST-BY
MUTE
= 5V
= 5V
80 µA
Play or Mute -20 -5 µA
I
muteBIAS
Mute bias current Mute 1 5 µA
Play 0.2 2 µA
µA
3/11
TDA7495S
Figure 1a:
Application Circuit.
+V
S
C4 470µF
INR
INL
C1
1000µF
PW_GND
C2 470nF
S_GND
C3 470nF
SVR 7
C9
0.1µF
V
S
11
1
30K
8
PROTECTIONS
5
13
+
OP AMP
MUTE/STBY
+
-30K
OP AMP
15
14
10
12
9
PW_GND
C8 1000µF
C7
1µF
C6 1000µF
D99AU1017
R2 10K
PW_GND
OUTR
OUTL
PW_GND
S1 STBY
S2 MUTE
+5V
S_GND
+5V
Figure 1b:
P.C.B. and Component Layout.
4/11
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