SGS Thomson Microelectronics TDA7365 Datasheet
OUTPUT POWER 2x6W/4Ω @14.4V, 1KHz,
10%
SOLIDSTATEPOWERSWITCH INCLUDED
(1A @ V
MINIMUMEXTERNALCOMPONENTCOUNT
- INTERNALLY FIXED GAIN (40dB)
- NO BOOTSTRAPCAPACITORS
- NO EXTERNALCOMPENSATION
ST-BYFUNCTION(CMOS COMPATIBLE)
MUTE FUNCTION (CMOS COMPATIBLE)
NO AUDIBLE POP DURING MUTE/ST-BY
OPERATIONS
LOW SUPPLY SELFMUTING
PROTECTIONS
AC AUDIO OUTPUTS SHORT CIRCUIT TO
GND
DC AUDIO OUTPUTS SHORT CIRCUIT TO
GNDAND TOV
SWITCH OUTPUT INTERNAL CURRENT
LIMITATION
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMAL LIMITER
LOADDUMP
FORTUITOUS OPENGND
DROP
= 0.8V Typ.)
AT POWER ON
S
TDA7365
2 x 6W CAR RADIO AMPLIFIER
PLUS SOLID STATE SWITCH
ADVANCE DATA
MULTIWATT15
ORDERING NUMBER: TDA7365
REVERSEBATTERY
ESD
DESCRIPTION
TheTDA7365is a newtechnologyDual Audio Amplifier in Multiwatt15 package especially designed
forstereo car radio applications.
Thanksto the fully complementaryoutput configuration the TDA7365 delivers a rail to rail voltage
swingwith no needof boostrapcapacitors
It includesa solidstateswitch,enabledby a ST-BY
function common to the audio section, suitable for
supplyingboth the signalprocessingpart of the car
radioset and the lamps. As a resultsthe power-on
operation is simplified, thereby saving cost and
space inthewhole powersection.
BLOCK DIAGRAM
April 1995
This isadvanced information on a new product now in development or undergoing evaluation.Details are subject to change without notice.
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TDA7365
PIN CONNECTION (Top view)
Vs
Vs
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
V
PEAK
P
T
stg,Tj
I
I
I
DC Supply Voltage 28 V
S
Operating Supply Voltage 18 V
OP
Peak Supply Voltage (t = 50ms) 40 V
Audio Channels Output Peak Current (notrep. t = 100µs) 4 A
O
Audio Channels Output Peak Current (rep.f > 10Hz) 3 A
O
Switch OutputPeak Current (internally limited) 1.5 A
O
Power Dissipation (T
tot
=85°C) 32 W
case
Storage and JunctionTemperature -40 to 150 °C
THERMAL DATA
Symbol Description Value Unit
R
th j-case
Thermal Resistance Junction-case Max 2 °C/W
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TDA7365
ELECTRICAL CHARACTERISTICS (Referto the test circuit; VS=14.4V; RL=4Ω,T
amb
=25°C,
f = 1kHz, unlessotherwise specified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
S
I
d
P
O
Supply Range 8 18 V
Total Quiescent Drain Current Power Switch Unloaded 80 mA
Output Power RL=4Ω; THD =10%
5.5 6 W
each channel
R
=2Ω; THD =10%
L
9W
each channel
d Distortion P
CT Cross Talk f = 1kHz; R
R
IN
G
V
G
V
E
IN
Input Impedance 40 50 KΩ
Voltage Gain 39 40 41 dB
Voltage Gain Match. 1 dB
Input Noise Voltage (*) Rg= 0 1.2 5 µV
SVR Supply Voltage Rejection R
= 0.1 to 3W 0.08 0.3 %
O
f = 10kHz; R
= 0 ; f = 100Hz;
g
V
= 0.5V
r
rms
g
=0
=0
g
50 55
50
45 50 dB
ASB Stand-by Attenuation 60 90 dB
V
V
SB OUT
V
V
MOUT
I
SB
SB IN
MIN
ST-BY Current Consumption 100 µA
ST-BY IN Threshold Voltage 1.5 V
ST-BY OUT Threshold Voltage 3.5 V
MUTE IN Threshold Voltage 1.5 V
MUTE OUT Threshold Voltage 3.5 V
POWERSWITCH CHARACTERISTICS
dB
dB
Symbol Parameter Test Condition Min. Typ. Max. Unit
I
Op
V
DROP
(*) 22Hz to 22KHz
(**) A weighted
Continuous Output Current 1.2 A
Dropout Voltage Io = 1A 1.4 V
TEST AND APPLICATION CIRCUIT
+V
s
470µF
C5
47µF C10
0.22µFC1
0.22µFC2
10K R1
0.1µF
C7
0.1µF
C6
ST-BY
S-GND
SVR
IN1
IN2
50K
50K
POWER
SWITCH
PWR SWITCH
OUTPUT
4.7µF
PW-GND
OUT1
1000µFC4
OUT2
10K R2
MUTE
10µF
VOLTAGE REGULATOR
SUPPLYING THE LOW
C9
C8
SIGNAL SECTION
1000µFC3
D94AU116B
TO THE
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