tda7384a.pdf

(301 KB) Pobierz
11040347 UNPDF
[
TDA7384A
4 x 35W QUAD BRIDGE CAR RADIO AMPLIFIER
@ 14.4V, 1KHz, 10%
4 x 22W/4 W @ 13.2V, 1KHz, 10%
LOW DISTORTION
LOW OUTPUT NOISE
ST-BY FUNCTION
MUTE FUNCTION
AUTOMUTE AT MIN. SUPPLY VOLTAGE DE-
TECTION
LOW EXTERNAL COMPONENT COUNT:
– INTERNALLY FIXED GAIN (26dB)
– NO EXTERNAL COMPENSATION
– NO BOOTSTRAP CAPACITORS
W
FLEXIWATT25
ORDERING NUMBER: TDA7384A
FORTUITOUS OPEN GND
REVERSED BATTERY
ESD
DESCRIPTION
The TDA7384A is a new technology class AB
Audio Power Amplifier in Flexiwatt 25 package
designed for high end car radio applications.
Thanks to the fully complementary PNP/NPN out-
put configuration the TDA7384A allows a rail to
rail output voltage swing with no need of boot-
strap capacitors. The extremely reduced compo-
nents count allows very compact sets.
PROTECTIONS:
OUTPUT SHORT CIRCUIT TO GND, TO V S ,
ACROSS THE LOAD
VERY INDUCTIVE LOADS
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMAL LIMITER
LOAD DUMP VOLTAGE
BLOCK AND APPLICATION DIAGRAM
Vcc1
Vcc2
470
m
F
100nF
ST-BY
MUTE
HSD
HSD
IN1
OUT1+
OUT1-
0.1
m
F
PW-GND
IN2
OUT2+
OUT2-
0.1
m
F
PW-GND
IN3
OUT3+
OUT3-
0.1
m
F
PW-GND
IN4
OUT4+
OUT4-
0.1 m F
PW-GND
AC-GND
0.47
SVR
TAB
S-GND
m
F
47
m
F
D94AU158B
September 1998
1/9
HIGH OUTPUT POWER CAPABILITY:
4 x 40W/4 W MAX.
4 x 35W/4 W EIAJ
4 x 25W/4
11040347.002.png
TDA7384A
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V CC
Operating Supply Voltage
18
V
V CC (DC)
DC Supply Voltage
28
V
V CC (pk)
Peak Supply Voltage (t = 50ms)
50
V
I O
Output Peak Current:
Repetitive (Duty Cycle 10% at f = 10Hz)
Non Repetitive (t = 100
4.5
5.5
A
A
m
s)
P tot
Power dissipation, (T case =70
°
C)
80
W
T j
Junction Temperature
150
°
C
T stg
Storage Temperature
– 55 to 150
°
C
PIN CONNECTION (Top view)
1
25
D94AU159A
THERMAL DATA
Symbol
Parameter
Value
Unit
R th j-case
Thermal Resistance Junction to Case
Max.
1
°
C/W
2/9
11040347.003.png
TDA7384A
ELECTRICAL CHARACTERISTICS (V S = 14.4V; f = 1KHz; R g = 600
W
;R L =4
W
;T amb =25
°
C;
Refer to the test and application diagram, unless otherwise specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
I q1
Quiescent Current
R L =
8
120
190
350
mA
V OS
Output Offset Voltage
Play Mode
±
80
mV
dV OS
During mute ON/OFF output
offset voltage
±
80
mV
G v
Voltage Gain
25
26
27
dB
dG v
Channel Gain Unbalance
±
1
dB
P o
Output Power
V S = 13.2V; THD = 10%
V S = 13.2V; THD = 0.8%
V S = 14,4V; THD = 10%
20
15
24
22
17
26
W
W
W
P o EIAJ
EIAJ Output Power (*)
VS = 13.7V
32
35
W
P o max.
Output Power (*)
V S = 14.4V
38
40
W
THD
Distortion
P o = 4W
0.04
0.15
%
e No
Output Noise
”A Weighted”
Bw = 20Hz to 20KHz
50
70
70
100
m
V
m
V
SVR
Supply Voltage Rejection
f = 100Hz; V r = 1Vrms
50
65
dB
f ch
High Cut-Off Frequency
P O = 0.5W
100
200
KHz
R i
Input Impedance
70
100
K
W
C T
Cross Talk
f = 1KHz P O =4W
f = 10KHz P O =4W
60
50
70
60
–
–
dB
dB
I SB
St-By Current Consumption
V St-By = 1.5V
100
m
A
I pin4
St-by pin Current
VSt-By = 1.5V to 3.5V
±
10
m
A
V SB out
St-By Out Threshold Voltage
(Amp: ON)
3.5
V
V SB in
St-By in Threshold Voltage
(Amp: OFF)
1.5
V
A M
Mute Attenuation
P Oref =4W
80
90
dB
V M out
Mute Out Threshold Voltage
(Amp: Play)
3.5
V
V Min
Mute In Threshold Voltage
(Amp: Mute)
1.5
V
V AM in
V S Automute Threshold
(Amp: Mute)
Att
80dB; P Oref =4W
(Amp: Play)
Att < 0.1dB; P O = 0.5W
6.5
V
7.6
8.5
V
I pin22
Muting Pin Current
V MUTE = 1.5V
(Sourced Current)
5
11
20
m
A
(*) Saturated square wave output.
3/9
.
11040347.004.png
TDA7384A
Figure 1: Standard Test and Application Circuit
C8
0.1 m F
C7
2200 m F
Vcc1-2
Vcc3-4
R1
6
20
ST-BY
4
9
8
7
10K
C9
1 m F
OUT1
R2
MUTE
22
47K
C10
1
m
F
5
2
3
C1
OUT2
IN1
11
0.1 m F
IN2
12
17
18
19
C2 0.1
m
F
OUT3
IN3
15
C3 0.1
m
F
21
24
23
IN4
14
OUT4
C4 0.1
m
F
S-GND
13
16
10
25
1
SVR
HSD
TAB
C5
0.47
C6
47
m
F
m
F
D95AU335B
4/9
11040347.005.png
TDA7384A
Figure 2: P.C.B. and component layout of the figure 1 (1:1 scale)
COMPONENTS &
TOP COPPER LAYER
BOTTOM COPPER LAYER
5/9
11040347.001.png

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin