STMICROELECTRONICS TDA7379

TDA7379
4 X 13 - 2 X 38W AUDIO POWER AMPLIFIER
2 X 13 + 1 X 38W AUDIO POWER AMPLIFIER
PRODUCT PREVIEW
HIGH OUTPUT POWER CAPABILITY
2 x 38W/4Ω @18V, 1KHz, 10%
4 x 11W/4Ω @18V, 1KHz, 10%
2 x 20W/8Ω @18V; 1KHz, 10%
4 x 13W/2Ω @15V, 1KHz, 10%
2 x 34W/8Ω @ 22V, 1kHz, 10%
■ MINIMUM EXTERNAL COMPONENTS
COUNT:
– NO BOOTSTRAP CAPACITORS
– NO BOUCHEROT CELLS
– INTERNALLY FIXED GAIN (26dB BTL)
■ ST-BY FUNCTION (CMOS COMPATIBLE)
■ NO AUDIBLE POP DURING ST-BY
OPERATIONS
■ DIAGNOSTIC FACILITIES
– CLIP DETECTOR
– OUT TO GND SHORT
– OUT TO VS SHORT
– SOFT SHORT AT TURN-ON
– THERMAL SHUTDOWN PROXIMITY
Protections:
■
■
OUPUT AC/DC SHORT CIRCUIT
Multiwatt15 (Vertical)
ORDERING NUMBER: TDA7379
■
■
■
■
■
– TO GND
– TO VS
– ACROSS THE LOAD
SOFT SHORT AT TURN-ON
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMAL LIMITER
FORTUITOUS OPEN GND
REVERSED BATTERY
ESD
BLOCK DIAGRAM
March 2004
This is preliminary information on a new product now in development. Details are subject to change without notice.
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TDA7379
DESCRIPTION
The TDA7379 is a new technology class AB audio processor amplifier able to work either in DUAL
BRIDGE or QUAD SINGLE ENDED configuration.
The exclusive fully complementary structure of the output stage and the internally fixed gain guarantee the
highest power performances with extremely reduced component count. The on board clip detector simplifies gain compression operation. The fault diagnostic makes it possible to detect mistakes during the set
assembly and wiring in the equipment.
ABSOLUTE MAXIMUM RATINGS
Symbol
Value
Unit
Supply Voltage Idle mode (no signal)
24
V
Supply Voltage operating
22
V
Supply Voltage AC-DC-short safe
20
V
IO
Output Peak Current (not repetitive t = 100µs)
5
A
IO
Output Peak Current (repetitive f > 10Hz)
4
A
Power Dissipation Tcase = 85°C
36
W
-40 to 150
°C
Value
Unit
1.8
°C/W
Vs
Ptot
Tstg, Tj
Parameter
Storage and Junction Temperature
THERMAL DATA
Symbol
Rth j-case
Parameter
Thermal Resistance Junction to case
PIN CONNECTION (Top view)
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Max
TDA7379
ELECTRICAL CHARACTERISTCS (Refer to the test circuit, VS = 15V; RL = 4Ω; f = 1KHz; Tamb = 25°C,
unless otherwise specified).
Symbol
Parameter
VS
Supply Voltage Range
Id
Total Quiescent Drain Current
VOS
Output Offset Voltage
PO
Output Power
PO
THD
CT
Output Power
Distortion
Cross Talk
RIN
Input Impedance
GV
Voltage Gain
GV
Voltage Gain Match
EIN
Input Noise Voltage
Test Condition
Min.
Typ.
8
RL = ∞
THD = 10%; RL = 4Ω
Bridge
Single Ended
Single Ended, RL = 2Ω
25
6.5
Max.
Unit
20
V
150
mA
150
mV
28
7.5
13
W
W
W
THD = 10%; Vs = 18V
Single Ended, RL = 4Ω
BTL, RL = 4Ω
11
38
W
W
THD = 10%; Vs = 18V
BTL, RL = 8Ω
20
W
THD=10%; VS = 22V
Bridge, RL = 8Ω
Single Ended, RL = 4Ω
34
16
W
W
RL = 4Ω
Single Ended, PO = 0.1 to 4W
Bridge, PO = 0.1 to 10W
0.02
0.03
f = 1KHz Single Ended
f = 10KHz Single Ended
f = 1KHz Bridge
f = 10KHz Bridge
55
Single Ended
Bridge
20
10
0.3
%
%
70
60
dB
dB
60
dB
dB
30
15
KΩ
KΩ
Single Ended
19
20
21
dB
Bridge
25
26
27
dB
0.5
dB
Rg = 0; "A" weighted, S.E.
Non Inverting Channels
Inverting Channels
Bridge
Rg = 0; 22Hz to 22KHz
SVR
Supply Voltage Rejection
Rg = 0; f = 300Hz
50
ASB
Stand-by Attenuation
PO = 1W
80
ISB
ST-BY Current Consumption
VST-BY = 0 to 1.5V
VSB
ST-BY In Threshold Voltage
VSB
ST-BY Out Threshold Voltage
Ipin7
ST-BY Pin Current
2
5
µV
µV
3.5
µV
dB
90
dB
100
µA
1.5
V
3.5
V
Play Mode Vpin7 = 5V
50
µA
Max Driving Current Under
Fault (*)
5
mA
Icd off
Clipping Detector
Output Average Current
d = 1% (**)
90
µA
Icd on
Clipping Detector
Output Average Current
d = 5% (**)
160
µA
Voltage Saturation on pin 10
Sink Current at Pin 10 = 1mA
Vsat pin10
0.7
V
(*) See built-in S/C protection description
(**) Pin 10 Pulled-up to 5V with 10KΩ; RL = 4Ω
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TDA7379
STANDARD TEST AND APPLICATION CIRCUIT
Figure 1. Quad Stereo
10K R1
ST-BY
C7
10µF
IN FL
7
4
3
13
1
C1 0.22µF
IN FR
5
12
C4 0.22µF
Note:
The output decoupling capacitors (C9,C10,C11,C12) could
be reduced to 1000µF if the 2Ω
operation is not required.
IN RR
C10 2200µF
OUT FL
C9 2200µF
OUT FR
C11 2200µF
OUT RL
C12 2200µF
OUT RR
2
C2 0.22µF
IN RL
VS
C5
1000µF
C6
100nF
15
11
C3 0.22µF
14
6
8
10
9
C8 47µF
DIAGNOSTICS
D94AU063A
Figure 2. Double Bridge
10K R1
ST-BY
C5
10µF
IN L
C1 0.47µF
IN R
13
7
4
3
1
5
OUT L
2
12
C2 0.47µF
15
11
OUT R
6
C8 47µF
VS
C3
1000µF
C4
100nF
14
8
10
9
DIAGNOSTICS
D94AU064A
Figure 3. Stereo/Bridge
10K
ST-BY
VS
10µF
IN L
100nF
7
4
13
3
1
0.22µF
IN L
2200µF
2
5
2200µF
0.22µF
IN BRIDGE
8
OUT R
OUT
BRIDGE
11
6
OUT L
15
12
0.47µF
1000µF
9
10
14
47µF
DIAGNOSTICS
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D94AU065A
TDA7379
Figure 4. P.C. Board and Component Layout of the fig.1.
Figure 5. P.C. Board and Component Layout of the fig.2
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TDA7379
DIM.
mm
MIN.
TYP.
inch
MAX.
MIN.
TYP.
A5
MAX.
0.197
B
2.65
C
0.104
1.6
D
0.063
1
0.039
E
0.49
0.55
0.019
0.022
F
0.66
0.75
0.026
0.030
G
1.02
1.27
1.52
0.040
0.050
0.060
G1
17.53
17.78
18.03
0.690
0.700
0.710
H1
19.6
0.772
H2
L
OUTLINE AND
MECHANICAL DATA
20.2
0.795
21.9
22.2
22.5
0.862
0.874
0.886
L1
21.7
22.1
22.5
0.854
0.87
0.886
L2
17.65
18.1
0.695
L3
17.25
17.5
17.75
0.679
0.689
0.699
L4
10.3
10.7
10.9
0.406
0.421
0.429
0.713
L7
2.65
2.9
0.104
M
4.25
4.55
4.85
0.167
0.179
0.191
0.114
M1
4.73
5.08
5.43
0.186
0.200
0.214
S
1.9
2.6
0.075
0.102
S1
1.9
2.6
0.075
0.102
Dia1
3.65
3.85
0.144
0.152
Multiwatt15 (Vertical)
0016036 J
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TDA7379
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics.
All other names are the property of their respective owners
© 2004 STMicroelectronics - All rights reserved
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