ST TDA7383 User Manual
TDA7383
TDA7383
4 x 30W QUAD BRIDGE CAR RADIO AMPLIFIER
HIGH OUTPUT POWER CAPABILITY: 4 x 35W/4Ω MAX.
4 x 30W/4Ω EIAJ
4 x 22W/4Ω @ 14.4V, 1KHz, 10%
4 x 18.5W/4Ω @ 13.2V, 1KHz, 10% CLIPPING DETECTOR
LOW DISTORTION LOW OUTPUT NOISE ST-BY FUNCTION MUTE FUNCTION
AUTOMUTE AT MIN. SUPPLY VOLTAGE DETECTION
DIAGNOSTICS FACILITY FOR:
±CLIPPING
±OUT TO GND SHORT
±OUT TO VS SHORT
±THERMAL SHUTDOWN
LOW EXTERNAL COMPONENT COUNT:
±INTERNALLY FIXED GAIN (32dB)
±NO EXTERNAL COMPENSATION
±NO BOOTSTRAP CAPACITORS
PROTECTIONS:
OUTPUT SHORT CIRCUIT TO GND, TO VS, ACROSS THE LOAD
BLOCK AND APPLICATION DIAGRAM
FLEXIWATT25
ORDERING NUMBER: TDA7383
VERY INDUCTIVE LOADS
OVERRATING CHIP TEMPERATURE WITH SOFT THERMAL LIMITER
LOAD DUMP VOLTAGE FORTUITOUS OPEN GND REVERSED BATTERY ESD PROTECTION
DESCRIPTION
The TDA7383 is a new technology class AB Audio Power Amplifier in Flexiwatt 25 package designed for high end car radio applications.
Vcc1 |
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Vcc2 |
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2.200μF |
100nF |
ST-BY |
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MUTE |
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DIAGN. OUT |
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OUT1+ |
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IN1 |
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OUT1- |
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0.1μF |
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PW-GND |
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OUT2+ |
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IN2 |
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OUT2- |
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0.1μF |
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PW-GND |
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OUT3+ |
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IN3 |
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OUT3- |
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0.1μF |
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PW-GND |
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OUT4+ |
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IN4 |
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OUT4- |
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0.1μF |
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PW-GND |
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AC-GND |
SVR |
TAB |
S-GND |
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0.1μF |
47μF |
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D93AU002C
October 1999 |
1/12 |
TDA7383
DESCRIPTION (continued)
Thanks to the fully complementary PNP/NPN output configuration the 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 |
VCC |
Operating Supply Voltage |
VCC (DC) |
DC Supply Voltage |
VCC (pk) |
Peak Supply Voltage (t = 50ms) |
IO |
Output Peak Current: |
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Repetitive (Duty Cycle 10% at f = 10Hz) |
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Non Repetitive (t = 100μs) |
Ptot |
Power dissipation, (Tcase = 70°C) |
Tj |
Junction Temperature |
Tstg |
Storage Temperature |
The on-board clipping detector simplifies gain compression operations. The fault diagnostics makes it possible to detect mistakes during CarRadio assembly and wiring in the car.
Value |
Unit |
18 |
V |
28 |
V |
50 |
V |
4.5 |
A |
5.5 |
A |
80 |
W |
150 |
°C |
± 55 to 150 |
°C |
PIN CONNECTION (Top view)
1 |
25 |
TAB |
P-GND |
OUT2- |
ST-BY |
OUT2+ |
V |
OUT1- |
P-GND1 |
OUT1+ |
SVR |
IN1 |
IN2 |
S-GND |
IN4 |
IN3 |
AC-GND |
OUT3+ |
P-GND3 |
OUT3- |
V |
OUT4+ |
MUTE |
P-GND4 |
DIAGNOSTICS |
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CC |
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CC |
OUT4- |
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D94AU117B
THERMAL DATA
Symbol |
Parameter |
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Value |
Unit |
Rth j-case |
Thermal Resistance Junction to Case |
Max. |
1 |
°C/W |
2/12
TDA7383
ELECTRICAL CHARACTERISTICS (VS = 14.4V; f = 1KHz; RL = 4Ω; Tamb = 25°C; Refer to the Test and application circuit (fig.1), unless otherwise specified.)
Symbol |
Parameter |
Test Condition |
Min. |
Typ. |
Max. |
Unit |
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Iq1 |
Quiescent Current |
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180 |
300 |
mA |
VOS |
Output Offset Voltage |
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200 |
mV |
Gv |
Voltage Gain |
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31 |
32 |
33 |
dB |
Po |
Output Power |
THD = 10% |
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20 |
22 |
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W |
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THD = 1% |
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16.5 |
18 |
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W |
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THD = 10%; VS = 14V |
19 |
21 |
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W |
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THD = 5%; |
VS = 14V |
17 |
19 |
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W |
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THD = 1%; |
VS = 14V |
16 |
17 |
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W |
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THD = 10%; VS = 13.2V |
17 |
18.5 |
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W |
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THD = 1%; |
VS = 13.2V |
14 |
15 |
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W |
Po EIAJ |
EIAJ Ouput Power (*) |
VS = 13.7V |
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27.5 |
30 |
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W |
Po max. |
Max. Output Power (*) |
VS = 14.4V |
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33 |
35 |
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W |
THD |
Distortion |
Po = 4W |
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0.05 |
0.3 |
% |
eNo |
Output Noise |
ºAº Weighted |
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75 |
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μV |
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Bw = 20Hz to 20KHz |
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100 |
150 |
μV |
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SVR |
Supply Voltage Rejection |
f = 100Hz |
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50 |
65 |
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dB |
fcl |
Low Cut-Off Frequency |
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20 |
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Hz |
fch |
High Cut-Off Frequency |
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75 |
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KHz |
Ri |
Input Impedance |
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70 |
100 |
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KΩ |
CT |
Cross Talk |
f = 1KHz |
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50 |
70 |
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dB |
ISB |
St-By Current Consumption |
St-By = LOW |
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100 |
μA |
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VSB out |
St-By OUT Threshold Voltage |
(Amp: ON) |
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3.5 |
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V |
VSB IN |
St-By IN Threshold Voltage |
(Amp: OFF) |
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1.5 |
V |
AM |
Mute Attenuation |
VO = 1Vrms |
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80 |
90 |
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dB |
VM out |
Mute OUT Threshold Voltage |
(Amp: Play) |
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3.5 |
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V |
VM in |
Mute IN Threshold Voltage |
(Amp: Mute) |
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1.5 |
V |
Im (L) |
Muting Pin Current |
VMUTE = 1.5V |
5 |
10 |
16 |
μA |
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(Source Current) |
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ICDOFF |
Clipping Detector ºOFFº Output |
THD = 1% (**) |
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100 |
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μA |
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Average Current |
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ICDON |
Clipping Detector ºONº Output |
THD = 10% (**) |
100 |
240 |
350 |
μA |
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Average Current |
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(*) Saturated square wave output.
(**) Diagnostics output pulled-up to 5V with 10KΩ series resistor.
3/12
TDA7383
Figure 1: Standard Test and Application Circuit
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C8 |
C7 |
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0.1μF |
2200μF |
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Vcc1-2 |
Vcc3-4 |
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R1 |
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6 |
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20 |
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ST-BY |
4 |
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9 |
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10K |
C9 |
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8 |
OUT1 |
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1μF |
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R2 |
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7 |
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22 |
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MUTE |
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47K |
C10 |
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C1 |
1μF |
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5 |
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2 |
OUT2 |
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IN1 |
11 |
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3 |
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0.1μF |
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IN2 |
12 |
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17 |
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C2 0.1μF |
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18 |
OUT3 |
IN3 |
15 |
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19 |
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C3 0.1μF |
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21 |
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IN4 |
14 |
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24 |
OUT4 |
C4 0.1μF |
S-GND |
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23 |
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13 |
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16 |
10 |
25 |
1 |
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C5 |
SVR |
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TAB |
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C6 |
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0.1μF |
47μF |
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D94AU179B |
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DIAGNOSTICS
4/12
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