TDA7391LV
40 W bridge car radio amplifier with low voltage operation
Datasheet
-
production data
Protections:
– Short circuit (to GND, to V
S
, across the
load)
– Very inductive loads
– Chip over temperature
– Load dump
– Open GND
– ESD
Description
Features
High power capability:
– 40 W/ 4
Ω
max
– 45 W/ 3.2
Ω
max
– 32 W/ 3.2
Ω
@ V
S
= 14.4 V, f = 1 kHz,
THD = 10 %
– 26 W/ 4
Ω
@ V
S
= 14.4 V, f = 1 kHz,
THD = 10%
Differential inputs (either single ended or
differential input signal is accepted)
Minimum external component count
Standby function (CMOS compatible)
Capable to operate to 6 V - ‘start-stop’ and
‘e-call’ compatibility
The TDA7391LV is a bridge class AB audio power
amplifier for car radio applications.
The high power capability together with the
possibility to operate either in differential input
mode or single ended input mode makes it
suitable for high end car radio equipment. The
exclusive fully complementary output stage and
the internal fixed gain configuration drop the
external component count.
The on board clipping detector allows easy
implementation of gain compression systems.
It is moreover compliant to the most recent OEM
specifications for low voltage operation ('start-
stop' battery profile during engine stop), and e-call
functions.
Table 1. Device summary
Order code
TDA7391LV
TDA7391LVPD
TDA7391LVPDTR
TDA7391LVPDU
TDA7391LVPDUTR
Package
Multiwatt 11
PowerSO-20 (slug-down)
Packing
Tube
Tube
Tape and reel
Tube
Tape and reel
PowerSO-20 (slug-up)
December 2014
This is information on a product in full production.
DocID023014 Rev 3
1/23
www.st.com
Contents
TDA7391LV
Contents
1
Block diagram, test and application circuit . . . . . . . . . . . . . . . . . . . . . . 5
1.1
1.2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2
3
Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1
3.2
3.3
3.4
3.5
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Low voltage operation (‘start stop’) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1
4.2
4.3
Multiwatt 11 (vertical) package mechanical data . . . . . . . . . . . . . . . . . . . 16
PowerSO-20 (slug-down) package mechanical data . . . . . . . . . . . . . . . . 18
PowerSO-20 (slug-up) package mechanical data . . . . . . . . . . . . . . . . . . 20
5
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2/23
DocID023014 Rev 3
TDA7391LV
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pins function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Multiwatt 11 (vertical) package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
PowerSO-20 (slug-down) package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
PowerSO-20 (slug-up) package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Document revision history. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
DocID023014 Rev 3
3/23
3
List of figures
TDA7391LV
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.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Multiwatt 11 pins connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
PowerSO-20 pins connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Worts case battery cranking curve sample 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Worst case battery cranking curve sample 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Output power vs. supply voltage (R
L
= 3.2
Ω)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Output power vs. supply voltage (R
L
= 4
Ω)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Output power vs. supply voltage (R
L
= 8
Ω)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Distortion vs. output power (R
L
= 3.2
Ω)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Distortion vs. frequency (R
L
= 3.2
Ω)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Distortion vs. output power (R
L
= 4
Ω)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Distortion vs. frequency (R
L
= 4
Ω)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Distortion vs. output power (R
L
= 8
Ω)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Distortion vs. frequency (R
L
= 8
Ω)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Distortion vs. output power (R
L
= 4
Ω,
V
s
= 6 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Distortion vs. frequency (R
L
= 4
Ω,
V
s
= 6 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Distortion vs. output power (R
L
= 8
Ω,
V
s
= 6 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Distortion vs. frequency (R
L
= 8
Ω,
V
s
= 6 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Common mode rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Total power dissipation and efficiency vs. output power (R
L
= 4
Ω)
. . . . . . . . . . . . . . . . . . 14
Power dissipation vs. average output power (audio program simulation, R
L
= 4
Ω).
. . . . . 14
Power dissipation vs. average output power (audio program simulation, R
L
= 4
Ω
&
8
Ω,
V
s
= 6 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power dissipation vs. output power (R
L
= 4
Ω
& 8
Ω,
sine, V
s
= 6 V) . . . . . . . . . . . . . . . . . 15
Multiwatt 11 (vertical) package mechanical drawing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
PowerSO-20 (slug-down) package mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . 18
PowerSO-20 (slug-up) package mechanical drawing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4/23
DocID023014 Rev 3
TDA7391LV
Block diagram, test and application circuit
1
1.1
Block diagram, test and application circuit
Block diagram
Figure 1. Block diagram
DocID023014 Rev 3
5/23
22
