SGS Thomson Microelectronics TDA7393 Datasheet
2 x 32W DUAL BRIDGE CAR RADIO AMPLIFIER
HIGHOUTPUTPOWERCAPABILITY:
2 x35W max./4
2 x32W EIAJ/4
2 x22W typ./4Ω @ 14.4V, 1KHz, 10%
2 x 19W typ./4Ω @ 13.2V, 1KHz, 10%
2 x 28W typ./2Ω @ 14.4V, 1KHz, 10%
2 x 25W typ./2Ω @ 13.2V, 1KHz, 10%
LOW DISTORTION
LOW OUTPUTNOISE
ST-BYFUNCTION
MUTEFUNCTION
AUTO-MUTE AT MIN. SUPPLY VOLTAGE
DETECTION
LOW EXTERNALCOMPONENTCOUNT
– INTERNALLYFIXED GAIN (32dB)
– NO EXTERNALCOMPENSATION
– NO BOOTSTRAPCAPACITORS
ADDITIONALMONOINPUT
PROTECTIONS:
OUTPUT AC/DC SHORT CIRCUIT TO GND
AND TOV
VERYINDUCTIVE LOADS
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMALLIMITER
BLOCK DIAGRAM
Ω
Ω
S
TDA7393
MULTIWATT15
ORDERING NUMBER: TDA7393
LOADDUMP VOLTAGE
FORTUITOUSOPEN GND
REVERSEBATTERY
ESD PROTECTION
DESCRIPTION
The TDA7393 is a new technology class AB
Audio Power Amplifier in Multiwatt15package designed for high end car radio applications.Thanks
to the fully complementary PNP/NPN output configuration the high power performances of the
TDA7393 are obtained without bootstrap capacitors. The extremely reduced components count
October 1998
1/9
TDA7393
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
CC
V
CC (DC)
V
CC (pk)
I
O
P
tot
T
j
T
op
T
stg
allows very compact sets.
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)
4.5
5.5
Power dissipation, Tcase = 75°C (see derating curve) 50 W
Junction Temperature 150
Operating Ambient Temperature – 40to 85 °C
Storage Temperature – 55 to150 °C
A
A
C
°
THERMAL DATA
Symbol Parameter Value Unit
Thermal ResistanceJunction to Case Max. 1.5 °C/W
2/9
R
th j-case
TDA7393
ELECTRICALCHARACTERISTICS(VS= 13.2V; f = 1KHz; Rg= 600Ω;RL=4Ω;T
amb
=25°C;
Refer to the applicationcircuit, unless otherwise specified.)
Symbol Parameter Test Condition Min. Typ. Max. Unit
I
q1
V
OS
G
v
P
o
P
o max
THD Distortion P
e
No
SVR Supply Voltage Rejection f = 100Hz (stereo) 60 dB
f
L
f
H
R
C
T
I
SB
V
SB out
V
SB IN
V
SB
A
M
V
M out
V
Min
V
M
I
m (L)
I
m (H)
Quiescent Current 90 180 mA
Output Offset Voltage 150 mV
Voltage Gain 30.5 32 33.5 dB
Output Power THD = 10%; VS= 14.4V
THD = 10%
THD = 1%
THD = 10%; R
THD = 10%; V
R
=2Ω
L
=2Ω
L
= 14.4V;
S
17
22
19
16
25
28
Max. Output Power EIAJ RULES; VS= 13.7V 30 W
= 0.1 to 8W 0.08 0.3 %
o
Output Noise Bw = 20Hz to 20KHz 0.3 mVrms
Low Cut-Off Frequency 10 Hz
High Cut-Off Frequency 300 KHz
Input Impedance 10 15 20 KΩ
i
Cross Talk f = 1KHz 50 65 dB
St-By Current Consumption 100
St-By OUT ThresholdVoltage Amp. ON 3.5 V
St-By IN Threshold Voltage Amp. OFF 1.5 V
Supply Dependent St-By
Threshold
St-By = H,
V
reducing/increasing
S
7.5 8.3 V
Mute Attenuation VO= 1Vrms 75 dB
Mute OUT Threshold Voltage Amp. Play 3.5 V
Mute IN Threshold Voltage Amp. Mute 1.5 V
Supply Dependent Mute
Threshold
Muting Pin Current V
Mute = IN,
V
reducing/increasing
S
= 1.5V
MUTE
8.5 9.3 V
61014µA
(Sourced Current)
Muting Pin Current VMUTE = 3.5V
61014
(Sourced Current)
W
W
W
W
W
A
µ
A
µ
Figure 1: QuiescentCurrent vs. Supply Voltage
RL=4Ω
Figure2: OutputPower vs. Supply Voltage
=4Ω
R
L
f = 1KHz
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