Witam, Żeby nie zaśmiecać forum postanowiłem odświeżyć ten post :) Wczoraj podłączałem w aucie właśnie takie radio, pierwsze podłączenie ok po zamontowaniu na stale przestało działać, Moje pytanie jest następujące piszecie o zamienniku TDA7560 znalazłem w swoich zapasach TDA7384 teoretyczne zgodne tylko o mniejszej mocy. Niestety na sieci znalazłem tylko datasheet od 7384A i nie jestem pewny czy one są w 100% zgodne? A chciałem w ten sposób na razie sprawdzić czy to pomoże i radio wstanie :)
TDA7384A
4 x 46 W quad bridge car radio amplifier
Datasheet − production data
Features
■
High output power capability:
– 4 x 46 W / 4 Ω max.
– 4 x 27 W / 4 Ω @ 14.4 V, 1 kHz, 10 %
■
Low distortion
■
Low output noise
■
Standby function
■
Mute function
■
Automute at min. supply voltage detection
■
Low external component count:
– Internally fixed gain (26 dB)
– No external compensation
– No bootstrap capacitors
■
Protections:
– Output short circuit to GND, to VS, across
the load
– Very inductive loads
– Overrating chip temperature with soft
thermal limiter
– Load dump voltage
– Fortuitous open GND
– Reversed battery
– ESD
Table 1.
Flexiwatt25
Description
The TDA7384A is an AB class audio power
amplifier, packaged in Flexiwatt 25 and designed
for high end car radio applications.
Based on a fully complementary PNP/NPN
configuration, the TDA7384A allows a rail to rail
output voltage swing with no need of bootstrap
capacitors. The extremely reduced boundary
components allows very compact sets.
Device summary
Order code
Package
Packing
TDA7384A
Flexiwatt25
Tube
June 2012
This is information on a product in full production.
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www.st.com
1
Contents
TDA7384A
Contents
1
Block and pin connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1
2.2
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4
PCB and component layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5
3
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1
SVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2
Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3
Standby and muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
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TDA7384A
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
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List of figures
TDA7384A
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
4/14
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Standard test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Components and top copper layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Bottom copper layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Quiescent current vs. supply current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Output power vs. supply voltage (4 Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Distortion vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Output noise vs. source resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power dissipation and efficiency vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Flexiwatt25 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
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TDA7384A
1
Block and pin connection diagrams
Block and pin connection diagrams
Figure 1.
Block diagram
Figure 2.
Pin connection
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Electrical specifications
TDA7384A
2
Electrical specifications
2.1
Absolute maximum ratings
Table 2.
Absolute maximum ratings
Symbol
Parameter
Value
Unit
Operating supply voltage
18
V
VS (DC)
DC supply voltage
28
V
VS (pk)
Peak supply voltage (t = 50 ms)
50
V
Output peak current:
Repetitive (duty cycle 10 % at f = 10 Hz)
Non repetitive (t = 100 μs)
4.5
5.5
A
A
Power dissipation, (Tcase = 70 °C)
80
W
Tj
Junction temperature
150
°C
Tstg
Storage temperature
– 55 to 150
°C
VS
IO
Ptot
2.2
Thermal data
Table 3.
Thermal data
Symbol
Rth j-case
2.3
Parameter
Thermal resistance junction-to-case
Value
1
max.
Unit
°C/W
Electrical characteristics
VS = 14.4 V; f = 1 kHz; Rg = 600 Ω; RL = 4 Ω; Tamb = 25 °C; Refer to the test and application
diagram (Figure 3), unless otherwise specified.
Table 4.
Symbol
Electrical characteristics
Parameter
Test condition
Min.
Typ.
Max.
Unit
120
190
350
mA
-
-
±100
mV
Quiescent current
RL = ∞
VOS
Output offset voltage
Play mode
dVOS
During mute ON/OFF output
ITU R-ARM weighted
offset voltage
-80
-
+80
mV
Gv
Voltage gain
-
25
26
27
dB
ΔGv
Channel gain unbalance
-
-
-
±1
dB
THD = 10%; VS = 14.4V
24
27
-
W
THD = 10%; VS = 13.2V
20
22
-
W
VS = 14.4V
VS = 15.2V
38
-
42
46
-
W
Iq1
Po
Po max
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Output power
Max. output power(1)
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TDA7384A
Table 4.
Symbol
Electrical specifications
Electrical characteristics (continued)
Parameter
Test condition
Min.
Typ.
Max.
Unit
Po = 4W
-
0.04
0.15
%
" A " Weighted
-
50
70
μV
Bw = 20 Hz to 20 kHz
-
70
100
μV
THD
Distortion
eNo
Output noise
SVR
Supply voltage rejection
f = 100 Hz; Vr = 1 Vrms
50
65
-
dB
fch
High cut-off frequency
Po = 0.5 W
100
200
-
KHz
Ri
Input Impedance
70
100
-
KΩ
70
-
dB
Cross talk
f = 1 kHz; Po = 4 W
60
CT
f = 10 kHz; Po = 4 W
50
60
-
dB
ISB
Standby current
consumption
VSt-by = 0 V
-
-
20
µA
Ipin4
Standby pin current
VSt-by = 1.2 to 2.6 V
-
-
±1
µA
VSB out
Standby out threshold
voltage
(Amp: ON)
3.5
-
-
V
VSB IN
Standby in threshold voltage (Amp: OFF)
-
-
1.5
V
Mute attenuation
POref = 4 W
80
90
-
dB
VM out
Mute out threshold voltage
(Amp: Play)
3.5
-
-
V
VM in
Mute in threshold voltage
(Amp: Mute)
-
-
1.5
V
VS automute threshold
(Amp: Mute); Att ≥ 80 dB;
POref = 4 W
(Amp: Play); Att & lt; 0.1 dB;
PO = 0.5 W
-
VMUTE = 1.2 V
(Source current)
5
AM
VAM in
Ipin22
Muting pin current
6.5
7.6
8.5
11
20
V
µA
1. Saturated square wave output.
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Electrical specifications
Figure 3.
2.4
TDA7384A
Standard test and application circuit
PCB and component layout
Referred to Figure 3: Standard test and application circuit.
Figure 4.
8/14
Components and top copper layer
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TDA7384A
Electrical specifications
Figure 5.
Bottom copper layer
2.5
Electrical characteristic curves
Figure 6.
Quiescent current vs. supply
voltage
Figure 7.
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Quiescent current vs. supply
current
9/14
Electrical specifications
Figure 8.
TDA7384A
Output power vs. supply voltage
(4 Ω)
Figure 10. Distortion vs. frequency
Figure 9.
Distortion vs. output power
Figure 11. Supply voltage rejection vs.
frequency
Figure 12. Output noise vs. source resistance Figure 13. Power dissipation and efficiency
vs. output power
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TDA7384A
3
Application hints
Application hints
Referred to the circuit of Figure 3.
3.1
SVR
Besides its contribution to the ripple rejection, the SVR capacitor governs the turn ON/OFF
time sequence and, consequently, plays an essential role in the pop optimization during
ON/OFF transients.
To conveniently serve both needs, its minimum recommended value is 10µf.
3.2
Input stage
The TDA7384A’s inputs are ground-compatible and can stand very high input signals
(± 8 Vpk) without any performances degradation.
If the standard value for the input capacitors (0.1 µF) is adopted, the low frequency cut-off
will amount to 16 Hz.
3.3
Standby and muting
If standby and muting are not used, a straight connection to VS of their respective pins
would be admissible.
Conventional/low-power transistors can be employed to drive muting and stand-by pins in
absence of true CMOS ports or microprocessors. R-C cells have always to be used in order
to smooth down the transitions for preventing any audible transient noises.
Since a DC current of about 10 µA normally flows out of pin 22, the maximum allowable
muting-series resistance (R2) is 70 kΩ, which is sufficiently high to permit a muting capacitor
reasonably small (about 1µF).
If R2 is higher than recommended, the involved risk will be that the voltage at pin 23 may rise
to above the 1.5 V threshold voltage and the device will consequently fail to turn OFF when
the mute line is brought down.
About the stand-by, the time constant to be assigned in order to obtain a virtually pop-free
transition has to be slower than 2.5 V/ms.
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Package information
4
TDA7384A
Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Figure 14. Flexiwatt25 mechanical data and package dimensions
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TDA7384A
5
Revision history
Revision history
Table 5.
Document revision history
Date
Revision
Changes
05-Dec-2001
1
Initial release.
11-Dec-2007
2
Updated in the Table 4 the values of the parameters Po and Po max.
10-Oct-2008
3
Updated Table 3: Thermal data on page 6.
07-Jun-2012
4
Updated Features on page 1;
Updated Electrical characteristics on page 6.
20-Jun-2012
5
Updated Section 3.3: Standby and muting.
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TDA7384A
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