SGS Thomson Microelectronics TDA7384A Datasheet
4 x 35W QUAD BRIDGE CAR RADIO AMPLIFIER
HIGHOUTPUTPOWERCAPABILITY:
4 x40W/4Ω MAX.
4 x35W/4ΩEIAJ
4 x25W/4Ω@ 14.4V, 1KHz, 10%
4 x22W/4Ω @ 13.2V,1KHz,10%
LOW DISTORTION
LOW OUTPUTNOISE
ST-BYFUNCTION
MUTEFUNCTION
AUTOMUTEAT MIN. SUPPLY VOLTAGE DE-
TECTION
LOW EXTERNALCOMPONENTCOUNT:
– INTERNALLYFIXED GAIN (26dB)
– NO EXTERNALCOMPENSATION
– NO BOOTSTRAPCAPACITORS
PROTECTIONS:
OUTPUT SHORT CIRCUIT TO GND, TO V
ACROSS THE LOAD
VERYINDUCTIVE LOADS
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMALLIMITER
LOADDUMP VOLTAGE
BLOCK AND APPLICATION DIAGRAM
TDA7384A
FLEXIWATT25
ORDERING NUMBER: TDA7384A
FORTUITOUSOPEN GND
REVERSEDBATTERY
ESD
DESCRIPTION
The TDA7384A is a new technology class AB
Audio Power Amplifier in Flexiwatt 25 package
,
S
designed for high end car radioapplications.
Thanks to thefully complementaryPNP/NPN out-
put configurationthe TDA7384Aallows a rail to
rail output voltage swing with no need of bootstrapcapacitors.The extremelyreduced componentscount allows very compact sets.
October 1999
IN1
IN2
IN3
IN4
Vcc1 Vcc2
ST-BY
MUTE
0.1µF
0.1µF
0.1µF
0.1µF
AC-GND
0.47µF47µF
SVR TAB S-GND
100nF470µF
N.C.
OUT1+
OUT1PW-GND
OUT2+
OUT2PW-GND
OUT3+
OUT3PW-GND
OUT4+
OUT4PW-GND
D99AU1018
1/9
TDA7384A
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
CC
V
CC (DC)
V
CC (pk)
I
O
P
tot
T
j
T
stg
PIN CONNECTION (Topview)
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)
Power dissipation, (T
=70°C) 80 W
case
4.5
5.5
Junction Temperature 150 °C
Storage Temperature – 55 to150 °C
A
A
1 25
TAB
OUT2-
P-GND2
ST-BY
CC
V
OUT2+
OUT1-
P-GND1
SVR
OUT1+
IN1
IN2
IN4
S-GND
IN3
OUT3+
AC-GND
OUT3-
P-GND3
CC
V
MUTE
OUT4+
D94AU159A
OUT4-
P-GND4
HSD
THERMAL DATA
Symbol Parameter Value Unit
Thermal Resistance Junction to Case Max. 1
2/9
R
th j-case
C/W
°
TDA7384A
ELECTRICALCHARACTERISTICS(VS= 14.4V; f = 1KHz; Rg= 600Ω;RL=4Ω;T
amb
=25°C;
Refer to the test and application diagram, unless otherwise specified.)
Symbol Parameter Test Condition Min. Typ. Max. Unit
Quiescent Current RL=
Output Offset Voltage Play Mode
During mute ON/OFF output
V
dV
I
q1
OS
OS
offset voltage
G
v
dG
P
o
Voltage Gain 25 26 27 dB
Channel Gain Unbalance ±1dB
v
Output Power VS= 13.2V; THD = 10%
V
V
P
P
o EIAJ
o max.
EIAJ Output Power (*) VS = 13.7V 32 35 W
Output Power (*) VS= 14.4V 38 40 W
THD Distortion P
e
No
Output Noise ”A Weighted”
Bw = 20Hz to 20KHz
SVR Supply Voltage Rejection f = 100Hz; V
f
ch
R
C
T
High Cut-Off Frequency PO= 0.5W 100 200 KHz
Input Impedance 70 100 KΩ
i
Cross Talk f = 1KHz PO=4W
f = 10KHz P
St-By Current Consumption V
St-by pin Current VSt-By= 1.5V to 3.5V
St-By Out ThresholdVoltage (Amp: ON) 3.5 V
St-By in Threshold Voltage (Amp: OFF) 1.5 V
Mute Attenuation P
Mute Out Threshold Voltage (Amp: Play) 3.5 V
Mute In Threshold Voltage (Amp: Mute) 1.5 V
VSAutomute Threshold (Amp: Mute)
V
V
V
V
V
I
SB
I
pin4
SB out
SB in
A
M
M out
Min
AM in
Att≥80dB; P
(Amp: Play)
Att < 0.1dB; P
I
pin22
Muting Pin Current V
(Sourced Current)
(*) Saturated square wave output.
∞
= 13.2V; THD = 0.8%
S
= 14,4V; THD = 10%
S
= 4W 0.04 0.15 %
o
= 1Vrms 50 65 dB
r
=4W
O
= 1.5V 100
St-By
=4W 80 90 dB
Oref
=4W
Oref
= 0.5W 7.6
O
= 1.5V
MUTE
120 190 350 mA
80 mV
±
80 mV
±
20
15
24
60
50
22
17
26
50
70
70
60
70
100
–
–
10
±
6.5
8.5
51120µA
W
W
W
µV
µ
dB
dB
µ
µ
V
V
V
A
A
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