TDA7386 - STMicroelectronics
TDA7386
4 x 49 W quad bridge car radio amplifier
Datasheet - production data
– Internally fixed gain (26dB)
– 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
'!0'03
Flexiwatt25
Features
 High output power capability:
 4 x 49 W/4 Ω max.
 4 x 28 W/4 Ω @ 14.4V, 1 kHz, 10%
Description
 4 x 24 W/4 Ω @ 13.2V, 1 kHz, 10%
 Low distortion
The TDA7386 is an AB class audio power
amplifier, packaged in Flexiwatt 25 and designed
for high end car radio applications.
 Low output noise
 Standby function
 Mute function
 Automute at min. supply voltage detection
 Low external component count:
Based on a fully complementary PNP/NPN
configuration, the TDA7386 allows a rail to rail
output voltage swing with no need of bootstrap
capacitors. The extremely reduced boundary
components count allows very compact sets.
Table 1. Device summary
Order code
Package
Packing
TDA7386
Flexiwatt25
Tube
September 2013
This is information on a product in full production.
DocID4057 Rev 5
1/14
www.st.com
Contents
TDA7386
Contents
1
Block and pin connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
2.1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4
PCB and component layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5
Electrical characteristics 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
2/14
DocID4057 Rev 5
TDA7386
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
DocID4057 Rev 5
3/14
3
List of figures
TDA7386
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.
Figure 15.
Figure 16.
4/14
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Standard test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Components and top copper layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Bottom copper layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Quiescent output voltage vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Output power vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Max. output power vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Distortion vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Distortion vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Crosstalk vs. frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Output noise vs. source resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power dissipation and efficiency vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Flexiwatt25 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
DocID4057 Rev 5
TDA7386
Block and pin connection diagrams
Figure 1. Block diagram
6CC
6CC
—&
N&
34"9
.#
-54%
/54
).
/54
—&
07'.$
/54
).
/54
—&
07'.$
/54
/54
).
—&
07'.$
/54
).
/54
—&
07'.$
!#'.$
362
—&
4!"
3'.$
—&
'!0'03
Figure 2. Pin connection (top view)
.#
0'.$
/54
-54%
/54
6##
/54
/54
0'.$
).
!#'.$
).
3'.$
).
).
362
/54
0'.$
6##
/54
34"9
/54
/54
0'.$
4!"
1
Block and pin connection diagrams
'!0'03
DocID4057 Rev 5
5/14
13
Electrical specifications
TDA7386
2
Electrical specifications
2.1
Absolute maximum ratings
Table 2. Absolute maximum ratings
Symbol
Parameter
Value
Unit
Operating supply voltage
18
V
VCC (DC)
DC supply voltage
28
V
VCC (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
– 40 to 105
°C
VCC
IO
Ptot
Operating temperature range
Tamb
2.2
Tj
Junction temperature
150
C
Tstg
Storage temperature
– 55 to 150
C
Thermal data
Table 3. Thermal data
Symbol
Rth j-case
2.3
Parameter
Thermal resistance junction-to-case
max.
Value
Unit
1
°C/W
Electrical characteristics
VS = 14.4 V; f = 1 kHz; Rg = 600 ; RL = 4 ; Tamb = 25 °C; Refer to the test and application
diagram, unless otherwise specified.
Table 4. Electrical characteristics
Symbol
Iq1
VOS
VOS
Gv
Gv
Po
6/14
Parameter
Test condition
Min.
Typ.
Max.
Unit
Quiescent current
RL =∞
-
190
350
mA
Output offset voltage
Play Mode
-
-
±80
mV
During mute on/off output
offset voltage
-
-
-
±80
mV
Voltage gain
-
25
26
27
dB
Channel gain unbalance
-
-
-
±1
dB
THD = 10%; VS = 13.2 V
22
24
-
W
Output power
THD = 0.8%; VS = 13.2 V
16.5
18
-
W
THD = 10%; VS = 14.4 V
26
28
-
W
DocID4057 Rev 5
TDA7386
Electrical specifications
Table 4. Electrical characteristics (continued)
Symbol
Po max
THD
Parameter
Test condition
Min.
Typ.
Max.
Unit
43
45
49
-
W
Max.output power (1)
VS = 14.4 V
VS = 15.2 V
Distortion
Po = 4W
-
0.04
0.15
%
"A" Weighted
-
50
70
μV
Bw = 20 Hz to 20 kHz
-
70
100
μV
f = 100 Hz; Vr = 1Vrms
50
75
-
dB
eNo
Output noise
SVR
Supply voltage rejection
fch
High cut-off frequency
Po = 0.5 W
80
200
-
kHz
Ri
Input impedance
-
70
100
-
kΩ
CT
Cross talk
f = 1 kHz; Po = 4 W
60
70
-
dB
f = 10 kHz; Po = 4W
-
60
-
dB
ISB
Standby current
consumption
VSt-by = 1.5
-
-
50
μA
VSt-by = 0 V
-
-
20
μA
Ipin4
Standby pin current
VSt-by = 1.5 to 3.5 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 Ω
(Amp: play); Att < 0.1 dB; PO = 0.5 Ω
-
7.6
6.5
8.5
V
V
VMUTE = 1.5 V (Source current)
5
11
20
μA
VMUTE = 3.5 V
-5
-
20
μA
AM
VAM in
Ipin22
Muting pin current
1. Saturated square wave output.
Figure 3. Standard test and application circuit
#
M&
#
M&
6CC
6CC
2
34"9
+
2
#
M&
-54%
+
#
M&
#
).
#M&
).
/54
#M&
).
#M&
/54
M&
).
/54
3'.$
#
M&
/54
362
#
M&
.#
4!"
'!0'03
DocID4057 Rev 5
7/14
13
Electrical specifications
2.4
TDA7386
PCB and component layout
Referred to the circuit of Figure 3.
Figure 4. Components and top copper layer
Figure 5. Bottom copper layer
8/14
DocID4057 Rev 5
TDA7386
2.5
Electrical specifications
Electrical characteristics curves
Figure 6. Quiescent current vs. supply voltage
Figure 7. Quiescent output voltage vs. supply
voltage
'!0'03
'!0'03
Figure 8. Output power vs. supply voltage
Figure 9. Max. output power vs. supply voltage
Figure 10. Distortion vs. output power
Figure 11. Distortion vs. frequency
DocID4057 Rev 5
9/14
13
Electrical specifications
TDA7386
Figure 12. Supply voltage rejection vs.
frequency
Figure 13. Crosstalk vs. frequency
Figure 14. Output noise vs. source resistance
Figure 15. Power dissipation and efficiency vs.
output power
10/14
DocID4057 Rev 5
TDA7386
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 10F.
3.2
Input stage
The TDA7386’s inputs are ground-compatible and can stand very high input signals (±8Vpk)
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
Standby and muting facilities are both CMOS-compatible. If unused, 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 22 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 2.5V/ms.
DocID4057 Rev 5
11/14
13
Package information
4
TDA7386
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 16. Flexiwatt25 mechanical data and package dimensions
$)-
!
"
#
$
%
&
'
'
(
(
(
(
,
,
,
,
,
,
-
.
/
2
2
2
2
2
6
6
6
6
-).
MM
490
-!8
-).
INCH
490
-!8
/54,).%!.$
-%#(!.)#!,$!4!
&LEXIWATTVERTICAL
ƒ7\S
ƒ7\S
ƒ7\S
ƒ7\S
DAMBARPROTUSIONNOTINCLUDED
MOLDINGPROTUSIONINCLUDED
6
#
"
6
(
(
6
!
(
/
(
2
,
2
6
2
,
.
,
2
,
,
6
6
2
$
2
,
0IN
2
2
%
'
'
&
&,%8-%
-
-
'!0'03
12/14
DocID4057 Rev 5
TDA7386
5
Revision history
Revision history
Table 5. Document revision history
Date
Revision
Changes
24-Nov-2001
1
Initial release.
20-Dec-2007
2
Document reformatted.
Modified the Features on page 1.
Modified the Figure 1 and 2.
Updated the Table 4: Electrical characteristics.
29-Oct-2008
3
Updated the Table 3: Thermal data on page 6.
19-Nov-2008
4
Update the Table 2: Absolute maximum ratings on page 6.
18-Sep-2013
5
Updated Features on page 1;
Updated Table 4: Electrical characteristics.
Updated Disclaimer.
DocID4057 Rev 5
13/14
13
TDA7386
Please Read Carefully:
Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the
right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any
time, without notice.
All ST products are sold pursuant to ST’s terms and conditions of sale.
Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no
liability whatsoever relating to the choice, selection or use of the ST products and services described herein.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this
document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products
or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such
third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED
WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS
OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.
ST PRODUCTS ARE NOT DESIGNED OR AUTHORIZED FOR USE IN: (A) SAFETY CRITICAL APPLICATIONS SUCH AS LIFE
SUPPORTING, ACTIVE IMPLANTED DEVICES OR SYSTEMS WITH PRODUCT FUNCTIONAL SAFETY REQUIREMENTS; (B)
AERONAUTIC APPLICATIONS; (C) AUTOMOTIVE APPLICATIONS OR ENVIRONMENTS, AND/OR (D) AEROSPACE APPLICATIONS
OR ENVIRONMENTS. WHERE ST PRODUCTS ARE NOT DESIGNED FOR SUCH USE, THE PURCHASER SHALL USE PRODUCTS AT
PURCHASER’S SOLE RISK, EVEN IF ST HAS BEEN INFORMED IN WRITING OF SUCH USAGE, UNLESS A PRODUCT IS
EXPRESSLY DESIGNATED BY ST AS BEING INTENDED FOR “AUTOMOTIVE, AUTOMOTIVE SAFETY OR MEDICAL” INDUSTRY
DOMAINS ACCORDING TO ST PRODUCT DESIGN SPECIFICATIONS. PRODUCTS FORMALLY ESCC, QML OR JAN QUALIFIED ARE
DEEMED SUITABLE FOR USE IN AEROSPACE BY THE CORRESPONDING GOVERNMENTAL AGENCY.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void
any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any
liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries.
Information in this document supersedes and replaces all information previously supplied.
The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
© 2013 STMicroelectronics - All rights reserved
STMicroelectronics group of companies
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com
14/14
DocID4057 Rev 5
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement