SGS Thomson Microelectronics TDA7384A Datasheet

4 x 35W QUAD BRIDGE CAR RADIO AMPLIFIER
HIGHOUTPUTPOWERCAPABILITY: 4 x40W/4MAX. 4 x35W/4ΩEIAJ 4 x25W/4Ω@ 14.4V, 1KHz, 10% 4 x22W/4@ 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= 600;RL=4;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 K
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
3/9
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