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TDA7365 Datasheet by STMicroelectronics
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FUUER
PUUEP SUITCH
SUI TCH
lN1
1N2
ST-EY
S~GND
OUTPUT
o DUT1
OUT?
”UTE
DU-GND
TDA7365
2 x 6W CAR RADIO AMPLIFIER
PLUS SOLID STATE SWITCH
OUTPUT POWER 2x6W/4Ω @14.4V, 1KHz,
10%
SOLID STATE POWER SWITCH INCLUDED
(1A @ VDROP = 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 VS 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.
September 2003
®
BLOCK DIAGRAM
MULTIWATT15
ORDERING NUMBER: TDA7365
1/7
DuT 2
N.:.
INPUT 2
ma.
MUTE
s-nnu
Du-GND
swans-3v
sun
mt.
INPUT 1
SUITCH DuTPuT
uuT1
nxzzx .s .1.
PIN CONNECTION (Top view)
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
VSDC Supply Voltage 28 V
VOP Operating Supply Voltage 18 V
VPEAK Peak Supply Voltage (t = 50ms) 40 V
IOAudio Channels Output Peak Current (not rep. t = 100µs) 4 A
IOAudio Channels Output Peak Current (rep. f > 10Hz) 3 A
IOSwitch Output Peak Current (internally limited) 1.5 A
Ptot Power Dissipation (Tcase = 85°C) 32 W
Tstg, TjStorage and Junction Temperature -40 to 150 °C
THERMAL DATA
Symbol Description Value Unit
Rth j-case Thermal Resistance Junction-case Max 2 °C/W
Vs
Vs
TDA7365
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2; I flifl
HEP
ELECTRICAL CHARACTERISTICS (Refer to the test circuit; VS = 14.4V; RL = 4Ω, Tamb = 25°C,
f = 1kHz, unless otherwise specified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
VSSupply Range 8 18 V
IdTotal Quiescent Drain Current Power Switch Unloaded 80 mA
POOutput Power RL = 4Ω; THD = 10%
each channel 5.5 6 W
RL = 2Ω; THD = 10%
each channel 9W
d Distortion PO = 0.1 to 3W 0.08 0.3 %
CT Cross Talk f = 1kHz; Rg = 0
f = 10kHz; Rg = 0 50 55
50 dB
dB
RIN Input Impedance 40 50 KΩ
GVVoltage Gain 39 40 41 dB
GVVoltage Gain Match. 1 dB
EIN Input Noise Voltage (*) Rg = 0 1.2 5 µV
SVR Supply Voltage Rejection Rg = 0 ; f = 100Hz;
Vr = 0.5Vrms
45 50 dB
ASB Stand-by Attenuation 60 90 dB
ISB ST-BY Current Consumption 100 µA
VSB IN ST-BY IN Threshold Voltage 1.5 V
VSB OUT ST-BY OUT Threshold Voltage 3.5 V
VM IN MUTE IN Threshold Voltage 1.5 V
VM OUT MUTE OUT Threshold Voltage 3.5 V
POWER SWITCH CHARACTERISTICS
Symbol Parameter Test Condition Min. Typ. Max. Unit
IOp Continuous Output Current 1.2 A
VDROP Dropout Voltage Io = 1A 1.4 V
(*) 22Hz to 22KHz
(**) A weighted
0.1µF
C6
+Vs
470µF
C5
47µF C10 SVR
0.22µF C1 IN1
IN2
0.22µF C2
ST-BY
0.1µF
C7
10K R1
50K
POWER
SWITCH
50K
4.7µF
C9
PWR SWITCH
OUTPUT TO THE
VOLTAGE REGULATOR
SUPPLYING THE LOW
SIGNAL SECTION
PW-GND
S-GND
OUT1
OUT2
MUTE 10K R2
10µF
C8
1000µF C3
1000µF C4
D94AU116B
TEST AND APPLICATION CIRCUIT
TDA7365
3/7
——L
.910 C!
I I I I l | I “a
l 4:]— m
cu m m s
O m + DEW. c2
DO 3 . m .,
35’? ea or 5““ 6...,
+
" + a c-
5ND 05] 1»
our c,
‘ om:
(—1, $455.1": mm” ml END IN: GND 5ND +vs +5v
, m‘lrm H" mm
TDA 7365
“525453
\q (M)
Pom)
m
‘3
12
H
10
CANonvm\m
THD=1D%
04vm>mmummn
w H ‘2 w m m us 1/ m a a w H ‘2 ‘3 M ‘5 ‘5 ‘7 m
V500 V500
THD (an)
1 u
Vs: MA v
RL: 4 Ohm
\
10 KHz
THD= 10%
0.1
cm
m H ‘2 ‘3 m m ‘5 H
sz)
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
4/7
01
0.01
001 D1 1
1 (KHZ)
CROSSTALK (dB)
80
75 Hg: 0
7o RL= 4 Ohm
Va: 2 vas
as
0.01 0.1 1
Pdiss (W)
1 s
‘4 v5=144v
RL 2 x 4 01111
1- 1 KHZ
o 1 2 a 4
Paul Each channel (W)
1o
10
Pmss
an
4U
an
7U
1U
SVR (any
60
59
56
£24
52
50
4a
4a
44
42
Hg: 0
Vr= 1 vas
40
0.01 01 1
1 (KHZ)
Vdrcp (v)
1o
_. vs= 14.4 v
.1
n 0.1 n.: n.a u nu ma n.1 n.I n1 1
15w (A)
1.1 12 u 1.4 1.:
" (‘36)
28 ‘ ‘ ‘ 1|!
n
2. 7 Vs, 4.4 v . an
R 2x2 ohm . '
20 7 -1KHz , ' 5n
‘5 , 4::
12 / :m
20
1D
I) D
D 1 2 G I 5 6 1 B 9 1n 11
Paul neon crannol [WJ
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
Ptot (W)
Ptot
TDA7365
5/7
Multiwatt15 V
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 1.02 1.27 1.52 0.040 0.050 0.060
G1 17.53 17.78 18.03 0.690 0.700 0.710
H1 19.6 0.772
H2 20.2 0.795
L 21.9 22.2 22.5 0.862 0.874 0.886
L1 21.7 22.1 22.5 0.854 0.870 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 4.25 4.55 4.85 0.167 0.179 0.191
M1 4.63 5.08 5.53 0.182 0.200 0.218
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
OUTLINE AND
MECHANICAL DATA
TDA7365
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Information furnished is believed to be accurate and reliable. However, STMicroelectronics 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 STMicroelectronics. Specifications mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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All other names are the property of their respective owners
© 2003 STMicroelectronics - All rights reserved
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TDA7365
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