SGS Thomson Microelectronics TDA7372B Datasheet
4 x 6W POWER AMPLIFIER FOR CAR RADIO
HIGHPOWERCAPABILITY:
4x6Wmin/4Ω @14.4V, 1KHz,10%
4x10Wtyp/2Ω @14.4V,1KHz,10%
MINIMUMEXTERNALCOMPONENT COUNT
- INTERNALLY FIXED GAIN (40dB)
- NO BOOTSTRAPCAPACITORS
- NO EXTERNALCOMPENSATION
ST-BYFUNCTION (CMOS COMPATIBLE)
MUTE FUNCTION(CMOS COMPATIBLE)
NO AUDIBLE POP DURING MUTE/ST-BY
OPERATIONS
LOW SUPPLY SELF MUTING
PROGRAMMABLETURN ON DELAY
TDA7372B
ADVANCE DATA
MULTIWATT15
ORDERING NUMBER: TDA7372B
FORTUITOUS OPEN GND
REVERSEBATTERY
ESDPROTECTION
PROTECTIONS:
AC OUTPUTSHORTCIRCUIT TOGND
DC OUTPUT SHORT CIRCUIT TO GND AND
TO V
SOFT THERMAL LIMITER
OVERRATINGCHIPTEMPERATURE
LOADDUMP VOLTAGE
BLOCK DIAGRAM
ATPOWER ON
S
DESCRIPTION
TheTDA7372Bis a newtechnologyclassABquad
channels Audio Power Amplifier in Multiwatt15
packagedesignedforcarradioapplications.
Thanks to the fully complementaryPNP/NPNoutput configuration the TDA7372B delivers a rail to
rail voltage swing with no need of boostrap capacitors.
April 1995
This isadvanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
1/10
TDA7372B
PIN CONNECTION (Top view)
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
V
PEAK
P
T
stg,Tj
I
I
DC Supply Voltage 28 V
S
Operating SupplyVoltage 18 V
OP
Peak Supply Voltage (t = 50ms) 50 V
Output Peak Current (not rep. t = 100µs) 4 A
O
Output Peak Current (rep. f > 10Hz) 3 A
O
Power Dissipation (T
tot
=85°C) 32 W
case
Storage and JunctionTemperature -40 to 150 °C
THERMAL DATA
Symbol Description Value Unit
R
th j-case
Thermal Resistance Junction-case Max 2 °C/W
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TDA7372B
ELECTRICAL CHARACTERISTICS (Refer to thetest circuit;VS=14.4V; RL=4Ω,T
amb
=25°C,
f = 1kHz, unless otherwise specified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
S
I
d
P
O
d Distortion R
CT Cross Talk f = 1kHz; R
R
IN
G
V
G
V
BW Bandwidth @ -3dB 75 KHz
E
NO
SVR Supply Voltage Rejection R
ASB Stand-by Attenuation 80 dB
I
SB
I
PIN7
V
SB IN
V
SB OUT
A
M
V
MIN
V
MOUT
(*) 22Hz to 22KHz
Supply Range 8 18 V
Total QuiescentDrain Current 150 mA
Output Power RL=4Ω; THD = 10%
6 6.5 W
each channel
R
=2Ω; THD = 10%
L
10 W
each channel
=4Ω;
L
P
= 0.1 to 3W
O
f = 10kHz; R
g
=0
=0
g
45 50
0.08 0.5 %
40
Input Impedance 35 KΩ
Voltage Gain 40 dB
Voltage GainMatch. 1 dB
Output Noise Voltage (*) Rg= 0 300 µV
= 0; f = 100Hz 45 dB
g
ST-BY Current Consumption Vpin7 = 1.5V 100 µA
ST-BY Pin Current Play mode; Vpin7= 5V 50 µA
Output Under Short (Max
5mA
driving current under fault)
ST-BY IN Threshold Voltage 1.5 V
ST-BY OUT Threshold Voltage 3.5 V
MUTE Attenuation 80 dB
MUTE IN Threshold Voltage 1.5 V
MUTE OUT Threshold Voltage 3.5 V
dB
dB
3/10
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