TDA7365
2 x 6W CAR RADIO AMPLIFIER
PLUS SOLID STATE SWITCH
ADVANCE DATA
OUTPUT POWER 2x6W/4
@14.4V, 1KHz,
10%
SOLID STATE POWER SWITCH INCLUDED
(1A @ V
DROP
= 0.8V Typ.)
MINIMUM EXTERNAL COMPONENT COUNT
- INTERNALLY FIXED GAIN (40dB)
- NO BOOTSTRAP CAPACITORS
- NO EXTERNAL COMPENSATION
ST-BY FUNCTION (CMOS COMPATIBLE)
MUTE FUNCTION (CMOS COMPATIBLE)
NO AUDIBLE POP DURING MUTE/ST-BY
OPERATIONS
LOW SUPPLY SELF MUTING
PROTECTIONS
AC AUDIO OUTPUTS SHORT CIRCUIT TO
GND
DC AUDIO OUTPUTS SHORT CIRCUIT TO
GND AND TO V
S
AT POWER ON
SWITCH
OUTPUT
INTERNAL
CURRENT
LIMITATION
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMAL LIMITER
LOAD DUMP
FORTUITOUS OPEN GND
REVERSE BATTERY
ESD
DESCRIPTION
The TDA7365 is a new technology Dual Audio Am-
plifier in Multiwatt15 package especially designed
for stereo car radio applications.
Thanks to the fully complementary output configu-
ration the TDA7365 delivers a rail to rail voltage
swing with no need of boostrap capacitors
It includes a solid state switch, enabled by a ST-BY
function common to the audio section, suitable for
supplying both the signal processing part of the car
radio set and the lamps. As a results the power-on
operation is simplified, thereby saving cost and
space in the whole power section.
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
April 1995
BLOCK DIAGRAM
MULTIWATT15
ORDERING NUMBER: TDA7365
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PIN CONNECTION (Top view)
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
S
DC Supply Voltage
28
V
V
OP
Operating Supply Voltage
18
V
V
PEAK
Peak Supply Voltage (t = 50ms)
40
V
I
O
Audio Channels Output Peak Current (not rep. t = 100
s)
4
A
I
O
Audio Channels Output Peak Current (rep. f > 10Hz)
3
A
I
O
Switch Output Peak Current
(internally limited) 1.5
A
P
tot
Power Dissipation (T
case
= 85
C)
32
W
T
stg
, T
j
Storage and Junction Temperature
-40 to 150
C
THERMAL DATA
Symbol
Description
Value
Unit
R
th j-case
Thermal Resistance Junction-case
Max
2
C/W
Vs
Vs
TDA7365
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ELECTRICAL CHARACTERISTICS (Refer to the test circuit; V
S
= 14.4V; R
L
= 4
, T
amb
= 25
C,
f = 1kHz, unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V
S
Supply Range
8
18
V
I
d
Total Quiescent Drain Current
Power Switch Unloaded
80
mA
P
O
Output Power
R
L
= 4
; THD = 10%
each channel
5.5
6
W
R
L
= 2
; THD = 10%
each channel
9
W
d
Distortion
P
O
= 0.1 to 3W
0.08
0.3
%
CT
Cross Talk
f = 1kHz; R
g
= 0
f = 10kHz; R
g
= 0
50
55
50
dB
dB
R
IN
Input Impedance
40
50
K
G
V
Voltage Gain
39
40
41
dB
G
V
Voltage Gain Match.
1
dB
E
IN
Input Noise Voltage (*)
R
g
= 0
1.2
5
V
SVR
Supply Voltage Rejection
R
g
= 0 ; f = 100Hz;
V
r
= 0.5V
rms
45
50
dB
ASB
Stand-by Attenuation
60
90
dB
I
SB
ST-BY Current Consumption
100
A
V
SB IN
ST-BY IN Threshold Voltage
1.5
V
V
SB OUT
ST-BY OUT Threshold Voltage
3.5
V
V
M IN
MUTE IN Threshold Voltage
1.5
V
V
M OUT
MUTE OUT Threshold Voltage
3.5
V
POWER SWITCH CHARACTERISTICS
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
I
Op
Continuous Output Current
1.2
A
V
DROP
Dropout Voltage
Io = 1A
1.4
V
(*) 22Hz to 22KHz
(**) A weighted
0.1
F
C6
+Vs
470
F
C5
47
F C10
SVR
0.22
F C1
IN1
IN2
0.22
F C2
ST-BY
0.1
F
C7
10K R1
50K
POWER
SWITCH
50K
4.7
F
C9
PWR SWITCH
OUTPUT
TO THE
VOLTAGE REGULATOR
SUPPLYING THE LOW
SIGNAL SECTION
PW-GND
S-GND
OUT1
OUT2
MUTE
10K R2
10
F
C8
1000
F C3
1000
F C4
D94AU116B
TEST AND APPLICATION CIRCUIT
TDA7365
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Figure 1: P.C.Board and component layout of the Test and Application Circuit 1:1 scale.
Figure 4: Output Power vs. Supply Voltage
Figure 5: Distortion vs. Output Power
Figure 2: Quiescent Drain Current vs. Supply
Voltage
Figure 3: Output Power vs. Supply Voltage
TDA7365
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Figure 10: Total Power Dissipation and Efficiency
vs. Output Power
Figure 11: Total Power Dissipation and Efficiency
Fiigure 8: Cross-Talk vs. Frequency
Figure 9: Switch Drop-out vs. Switch Current
Fiigure 6: Distortion vs. Frequency
Figure 7: Supply Voltage Rejection
P
to t
(W)
P
tot
TDA7365
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MULTIWATT15 PACKAGE MECHANICAL DATA
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
5
0.197
B
2.65
0.104
C
1.6
0.063
D
1
0.039
E
0.49
0.55
0.019
0.022
F
0.66
0.75
0.026
0.030
G
1.14
1.27
1.4
0.045
0.050
0.055
G1
17.57
17.78
17.91
0.692
0.700
0.705
H1
19.6
0.772
H2
20.2
0.795
L
22.1
22.6
0.870
0.890
L1
22
22.5
0.866
0.886
L2
17.65
18.1
0.695
0.713
L3
17.25
17.5
17.75
0.679
0.689
0.699
L4
10.3
10.7
10.9
0.406
0.421
0.429
L7
2.65
2.9
0.104
0.114
M
4.2
4.3
4.6
0.165
0.169
0.181
M1
4.5
5.08
5.3
0.177
0.200
0.209
S
1.9
2.6
0.075
0.102
S1
1.9
2.6
0.075
0.102
Dia1
3.65
3.85
0.144
0.152
TDA7365
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Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications men-
tioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without ex-
press written approval of SGS-THOMSON Microelectronics.
1995 SGS-THOMSON Microelectronics - All Rights Reserved
MULTIWATT
is Registered Trademark of SGS-THOMSON Microelectronics
SGS-THOMSON Microelectronics GROUP OF COMPANIES
Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore -
Spain - Sweden - Switzerland - Taiwan - Thaliand - United Kingdom - U.S.A.
TDA7365
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