ST TDA7383 User Manual
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4 x 30W QUAD BRIDGE CAR RADIO AMPLIFIER
HIGHOUTPUTPOWERCAPABILITY:
4 x35W/4Ω MAX.
4 x30W/4ΩEIAJ
4 x22W/4Ω@ 14.4V, 1KHz, 10%
4 x18.5W/4Ω @ 13.2V,1KHz,10%
CLIPPINGDETECTOR
LOW DISTORTION
LOW OUTPUTNOISE
ST-BYFUNCTION
MUTEFUNCTION
AUTOMUTEAT MIN. SUPPLY VOLTAGE DE-
TECTION
DIAGNOSTICSFACILITYFOR:
– CLIPPING
– OUTTOGND SHORT
– OUTTOV
– THERMALSHUTDOWN
LOW EXTERNALCOMPONENTCOUNT:
– INTERNALLYFIXED GAIN (32dB)
– NOEXTERNALCOMPENSATION
– NOBOOTSTRAPCAPACITORS
PROTECTIONS:
OUTPUT SHORT CIRCUIT TO GND, TO V
ACROSS THE LOAD
SHORT
S
TDA7383
FLEXIWATT25
ORDERING NUMBER: TDA7383
VERYINDUCTIVE LOADS
OVERRATING CHIP TEMPERATURE WITH
SOFTTHERMAL LIMITER
LOADDUMP VOLTAGE
FORTUITOUSOPEN GND
REVERSEDBATTERY
ESD PROTECTION
DESCRIPTION
The TDA7383 is a new technology class AB
Audio Power Amplifier in Flexiwatt 25 package
designed for high end car radioapplications.
,
S
BLOCK AND APPLICATION DIAGRAM
Vcc1 Vcc2
ST-BY
MUTE
IN1
0.1µF
IN2
0.1µF
IN3
0.1µF
IN4
0.1µF
AC-GND
0.1µF47µF
October 1999
100nF2.200µF
DIAGN. OUT
OUT1+
OUT1PW-GND
OUT2+
OUT2PW-GND
OUT3+
OUT3PW-GND
OUT4+
OUT4PW-GND
SVR TAB S-GND
D93AU002C
1/12
TDA7383
DESCRIPTION(continued)
Thanks to the fully complementaryPNP/NPN output configurationthe TDA7383 allows a rail to rail
output voltage swing with no need of bootstrap
capacitors. The extremely reduced components
count allows very compact sets.
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
CC (DC)
V
CC (pk)
CC
I
O
Operating Supply Voltage 18 V
DC Supply Voltage 28 V
Peak Supply Voltage (t = 50ms) 50 V
Output Peak Current:
Repetitive (Duty Cycle 10% at f = 10Hz)
Non Repetitive(t = 100µs)
P
tot
T
j
T
stg
Power dissipation, (T
=70°C) 80 W
case
Junction Temperature 150
Storage Temperature – 55 to150
PIN CONNECTION (Topview)
The on-board clipping detector simplifies gain
compression operations. The fault diagnostics
makes it possible to detect mistakes during CarRadioassembly and wiring in the car.
4.5
5.5
A
A
C
°
C
°
1 25
TAB
OUT2-
P-GND
ST-BY
CC
V
OUT2+
OUT1-
OUT1+
P-GND1
SVR
IN1
IN2
IN4
S-GND
IN3
OUT3+
AC-GND
OUT3-
P-GND3
CC
V
MUTE
OUT4+
D94AU117B
OUT4-
P-GND4
DIAGNOSTICS
THERMAL DATA
Symbol Parameter Value Unit
Thermal Resistance Junction to Case Max. 1
2/12
R
th j-case
C/W
°
TDA7383
ELECTRICALCHARACTERISTICS(VS= 14.4V; f = 1KHz; RL=4Ω;T
amb
=25°C;
Refer to the Testand application circuit (fig.1),unless otherwisespecified.)
Symbol Parameter Test Condition Min. Typ. Max. Unit
I
q1
V
OS
G
v
P
o
P
o EIAJ
P
o max.
THD Distortion P
e
No
SVR Supply Voltage Rejection f = 100Hz 50 65 dB
f
cl
f
ch
R
C
T
I
SB
V
SB out
V
SB IN
A
M
V
M out
V
Min
I
m (L)
I
CDOFF
I
CDON
(*) Saturated square wave output.
(**) Diagnostics output pulled-up to 5V with 10KΩ series resistor.
Quiescent Current 180 300 mA
Output Offset Voltage 200 mV
Voltage Gain 31 32 33 dB
Output Power THD = 10%
THD = 1%
THD = 10%; V
THD = 5%; V
THD = 1%; V
THD = 10%; V
THD = 1%; V
= 14V
S
= 14V
S
= 14V
S
= 13.2V
S
= 13.2V
S
20
16.5
19
17
16
17
14
22
18
21
19
17
18.5
15
EIAJ Ouput Power (*) VS = 13.7V 27.5 30 W
Max. Output Power (*) VS= 14.4V 33 35 W
= 4W 0.05 0.3 %
o
Output Noise ”A” Weighted
Bw = 20Hz to 20KHz
75
100 150
Low Cut-Off Frequency 20 Hz
High Cut-Off Frequency 75 KHz
Input Impedance 70 100 KΩ
i
Cross Talk f= 1KHz 50 70 dB
St-By Current Consumption St-By = LOW 100
St-By OUT ThresholdVoltage (Amp: ON) 3.5 V
St-By IN Threshold Voltage (Amp: OFF) 1.5 V
Mute Attenuation VO= 1Vrms 80 90 dB
Mute OUT Threshold Voltage (Amp: Play) 3.5 V
Mute IN Threshold Voltage (Amp: Mute) 1.5 V
Muting Pin Current V
MUTE
= 1.5V
51016µA
(Source Current)
Clipping Detector ”OFF” Output
THD = 1% (**) 100
Average Current
Clipping Detector ”ON” Output
THD = 10% (**) 100 240 350 µA
Average Current
W
W
W
W
W
W
W
µ
µV
µ
µ
V
A
A
3/12
TDA7383
Figure 1: StandardTest and Application Circuit
ST-BY
MUTE
IN1
IN2
IN3
IN4
R1
10K
R2
47K
C1
0.1µF
C2 0.1µF
C3 0.1µF
C4 0.1µF
C9
1µF
C10
1µF
S-GND
C8
0.1µF
4
22
11
12
15
14
13
16 10 25 1
C5
0.1µF
C7
2200µF
Vcc1-2 Vcc3-4
SVR TAB
C6
47µF
620
9
8
7
5
2
3
17
18
19
21
24
23
OUT1
OUT2
OUT3
OUT4
D94AU179B
4/12
DIAGNOSTICS
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