4 x 45 W quad bridge car radio amplifier
Feature
■ Superior output power capability:
–4 x 50 W/4 Ω max.
–4 x 45 W/4 Ω EIAJ
–4 x 30 W/4 Ω @ 14.4 V, 1 kHz, 10 %
–4 x 80 W/2 Ω max.
–4 x 77 W/2 Ω EIAJ
–4 x 55 W/2 Ω @ 14.4 V, 1 kHz, 10 %
■ Multipower BCD technology
■ MOSFET output power stage
■ Excellent 2 Ω driving capability
■ Hi-fi class 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
■ On board 0.35 A high side driver
Protections
■ Output short circuit to GND, to V
load
■ Very inductive loads
Table 1. Device summary
, across the
S
TDA7560A
Flexiwatt27 (vertical)
■ Overrating chip temperature with soft thermal
limiter
■ Output DC offset detection
■ Load dump voltage
■ Fortuitous open GND
■ Reversed battery
■ ESD
Description
The TDA7560A is a breakthrough BCD (Bipolar /
CMOS / DMOS) technology class AB audio power
amplifier in Flexiwatt 27 package designed for
high power car radio.
The fully complementary P-Channel/N-Channel
output structure allows a rail to rail output voltage
swing which, combined with high output current
and minimized saturation losses sets new power
references in the car-radio field, with unparalleled
distortion performances.
Order code Package Packing
E-TDA7560A Flexiwatt27 (vertical) Tube
November 2008 Rev 3 1/15
www.st.com
1
Contents TDA7560A
Contents
1 Block and pin connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Standard test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 SVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 Standby and muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.4 DC offset detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5 Heatsink definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2/15
TDA7560A List of tables
List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 3. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 4. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 5. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3/15
List of figure TDA7560A
List of figure
Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3. Standard test and application circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 4. Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 5. Output power vs. supply voltage (R
Figure 6. Output power vs. supply voltage (R
Figure 7. Distortion vs. output power (R
Figure 8. Distortion vs. output power (R
Figure 9. Distortion vs. frequency (R
Figure 10. Distortion vs. frequency (R
L
L
=4Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
L
=2Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
L
Figure 11. Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 12. Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 13. Output attenuation vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 14. Output noise vs. source resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 15. Power dissipation and efficiency vs. output power (sine-wave operation) . . . . . . . . . . . . . 10
Figure 16. Power dissipation vs. output power (music/speech simulation); R
Figure 17. Power dissipation vs. output power (music/speech simulation); R
Figure 18. ITU R-ARM frequency response, weighting filter for transient pop. . . . . . . . . . . . . . . . . . . 11
Figure 19. Flexiwatt27 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . 13
= 4Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
L
= 2Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
L
=4Ω). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
=2Ω). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
=4x4Ω. . . . . . . . . . . . .11
L
=4x2Ω. . . . . . . . . . . . .11
L
4/15
TDA7560A Block and pin connection diagrams
1 Block and pin connection diagrams
Figure 1. Block diagram
Vcc1 Vcc2
ST-BY
MUTE
IN1
0.1μF
IN2
0.1μF
IN3
0.1μF
IN4
0.1μF
AC-GND
0.47μF47μF
SVR TAB S-GND
Figure 2. Pin connection (top view)
100nF470μF
OFF DET
HSD/OFF DETHSD
OUT1+
OUT1-
PW-GND
OUT2+
OUT2-
PW-GND
OUT3+
OUT3-
PW-GND
OUT4+
OUT4-
PW-GND
D03AU1467
1
TAB
PW-GND
OFF DET
ST-BY
OUT2-
CC
V
OUT2+
OUT1-
PW-GND
27
SVR
OUT1+
IN1
IN2
IN4
S-GND
IN3
OUT3+
AC-GND
OUT3-
PW-GND
CC
V
MUTE
OUT4+
D03AU1468
OUT4-
PW-GND
HSD
TAB
5/15
Electrical specifications TDA7560A
2 Electrical specifications
2.1 Absolute maximum ratings
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
V
V
CC (DC)
V
CC (pk)
Operating supply voltage 18 V
CC
DC supply voltage 28 V
Peak supply voltage (for t = 50 ms) 50 V
Output peak current
I
Repetitive (duty cycle 10 % at f = 10 Hz)
O
Non repetitive (t = 100 µs)
P
T
T
Power dissipation T
tot
Junction temperature 150 °C
j
Storage temperature -55 to 150 °C
stg
= 70 °C 85 W
case
2.2 Thermal data
Table 3. Thermal data
Symbol Parameter Value Unit
R
th j-case
Thermal resistance junction to case Max. 1 °C/W
2.3 Electrical characteristics
10
9
A
A
Table 4. Electrical characteristics
(Refer to the test and application diagram, V
T
= 25 °C; unless otherwise specified).
amb
= 13.2 V; RL = 4 Ω; Rg = 600 Ω; f = 1 kHz;
S
Symbol Parameter Test condition Min. Typ. Max. Unit
I
Quiescent current RL = ∞ 80 200 320 mA
q1
V
dV
dG
Output offset voltage Play Mode ±50 mV
OS
During mute ON/OFF output
OS
offset voltage
Voltage gain 25 26 27 dB
G
v
Channel gain unbalance ±1 dB
v
V
P
Output power
o
= 13.2 V; THD = 10 %
S
= 13.2 V; THD = 1 %
V
S
VS = 14.4 V; THD = 10 %
= 14.4 V; THD = 1 %
V
S
23
16
28
20
25
19
30
23
±60 mV
6/15
W
TDA7560A Electrical specifications
Table 4. Electrical characteristics (continued)
(Refer to the test and application diagram, V
T
= 25 °C; unless otherwise specified).
amb
Symbol Parameter Test condition Min. Typ. Max. Unit
V
= 13.2 V; THD = 10 %, 2 Ω
S
Po Output power
P
o EIAJ
P
o max.
EIAJ output power
Max. output power
(1)
(1)
THD Distortion
e
Output noise
No
SVR Supply voltage rejection f = 100 Hz; V
f
High cut-off frequency PO = 0.5 W 100 300 kHz
ch
Input impedance 80 100 120 KΩ
R
i
C
Cross talk
T
I
I
pin5
V
SB out
V
SB in
A
V
M out
V
V
AM in
I
pin23
Standby current consumption
SB
ST-BY pin current V
Standby out threshold voltage (Amp: ON) 3.5 V
Standby in threshold voltage (Amp: OFF) 1.5 V
Mute attenuation P
M
Mute out threshold voltage (Amp: Play) 3.5 V
Mute in threshold voltage (Amp: Mute) 1.5 V
M in
VS automute threshold
Muting pin current
HSD section
VS = 13.2 V; THD = 1 %, 2 Ω
= 14.4 V; THD = 10 %, 2 Ω
V
S
= 14.4 V; THD = 1 %, 2 Ω
V
S
VS = 13.7 V; RL = 4 Ω
= 13.7 V; RL = 2 Ω
V
S
VS = 14.4 V; RL = 4 Ω
= 14.4 V; RL = 2 Ω
V
S
P
= 4 W
o
= 15 W; RL = 2 Ω
P
o
"A" Weighted
Bw = 20 Hz to 20 kHz
f = 1 kHz P
f = 10 kHz P
V
= 1.5V 20
ST-B
Y
= 0 V 10
V
ST-B
Y
= 1.5 V to 3.5 V ±10 μA
ST-BY
= 4W 80 90 dB
Oref
(Amp: Mute)
Att ≥ 80 dB; P
(Amp: Play)
Att < 0.1 dB; P
V
= 1.5 V
MUTE
(Sourced current)
= 3.5 V -5 18 μA
V
MUTE
= 13.2 V; RL = 4 Ω; Rg = 600 Ω; f = 1 kHz;
S
42
32
50
40
45
34
55
43
41 45
77
43
75
= 1 Vrms 50 70 dB
r
= 4 W
O
= 4 W
O
Oref
= 4 W
= 0.5 W
O
60
50
6.5 7
50
80
0.006
0.015
35
50
70
60
7.5 8
0.02
0.03
50
70
-
-
71218μA
W
W
W
%
µV
dB
μA
V
V
M MAX
V
dropout
I
prot
Mute voltage for HSD operation 6 V
Dropout voltage IO = 0.35 A; VS = 9 to 16 V 0.25 0.6 V
Current limits 400 800 mA
7/15
Electrical specifications TDA7560A
Table 4. Electrical characteristics (continued)
(Refer to the test and application diagram, V
T
= 25 °C; unless otherwise specified).
amb
Symbol Parameter Test condition Min. Typ. Max. Unit
Offset detector (Pin 26)
= 13.2 V; RL = 4 Ω; Rg = 600 Ω; f = 1 kHz;
S
V
M_ON
V
M_OFF
V
V
V
Mute voltage for DC offset
detection enabled
Detected differential output offset V
OFF
Pin 26 voltage for detection =
26_T
Tr u e
Pin 26 voltage for detection =
26_F
False
V
ST-BY
ST-BY
V
ST-BY
V
OFF
V
ST-BY
V
OFF
= 5 V
= 5 V; V
= 5 V; V
> ±4 V
= 5 V; V
> ±2 V
= 8 V ±2 ±3 ±4 V
mute
= 8 V
mute
= 8 V
mute
1. Saturated square wave output.
2.4 Standard test and application circuit
Figure 3. Standard test and application circuit
C8
0.1μFC72200μF
Vcc1-2
Vcc3-4
ST-BY
MUTE
IN1
IN2
IN3
IN4
R1
10K
R2
47K
C1
0.1μF
C2 0.1μF
C3 0.1μF
C4 0.1μF
C9
1μF
C10
1μF
S-GND
5
23
12
13
16
15
14
17 11 26 1, 27
C5
0.47μF
721
HSD/OFF DET
SVR TAB
C6
47μF
8V
6V
01.5V
12 V
10
9
8
6
3
4
18
19
20
22
25
24
OFF DET
2
D03AU1469
OUT1
OUT2
OUT3
OUT4
8/15
TDA7560A Electrical specifications
(V)
2.5 Electrical characteristics curves
Figure 4. Quiescent current vs. supply
voltage
Id (mA)
240
220
Vi = 0
RL = 4 Ohm
200
180
160
140
8 1012141618
Vs (V)
Figure 6. Output power vs. supply voltage
(R
= 2Ω)
L
Po (W)
130
120
110
100
90
80
RL= 2 Ohm
f= 1 KHz
70
60
50
40
30
20
10
8 9 10 11 12 13 14 15 16 17 18
Vs (V)
Po-max
THD= 10 %
THD= 1 %
Figure 5. Output power vs. supply voltage
(R
= 4Ω)
L
Po (W)
80
75
70
Po-max
65
60
RL= 4 Ohm
55
50
45
40
35
f= 1 KHz
THD= 10 %
30
25
20
THD= 1 %
15
10
5
8 9 10 11 12 13 14 15 16 17 18
Vs
Figure 7. Distortion vs. output power
(RL=4Ω)
THD (%)
10
Vs= 14.4 V
1
RL = 4 Ohm
0.1
0.01
0.001
0.1 1 10
f = 10 KHz
f = 1 KHz
Po (W)
Figure 8. Distortion vs. output power
(R
=2Ω)
L
THD (%)
10
Vs= 14.4 V
RL = 2 Ohm
1
f = 10 KHz
0.1
0.01
0.001
0.1 1 10
f = 1 KHz
Po (W)
Figure 9. Distortion vs. frequency (R
THD (%)
10
Vs = 14.4 V
1
RL = 4 Ohm
Po = 4 W
=4Ω)
L
0.1
0.01
0.001
10 100 1000 10000
f (Hz)
9/15
Electrical specifications TDA7560A
(Hz)
g
Figure 10. Distortion vs. frequency (RL=2Ω) Figure 11. Crosstalk vs. frequency
10
1
0.1
0.01
THD (%)
Vs = 14.4 V
RL = 2 Ohm
Po = 8 W
CROSSTALK (dB)
90
80
70
60
50
RL = 4 Ohm
Po = 4 W
40
Rg = 600 Ohm
30
0.001
10 100 1000 10000
f
Figure 12. Supply voltage rejection vs.
frequency
SVR (dB)
20
10 100 1000 10000
f (Hz)
Figure 13. Output attenuation vs. supply
voltage
OUT ATTN (dB)
100
90
80
0
-20
RL = 4 Ohm
Po= 4 W ref.
70
60
50
Rg= 600 Ohm
40
Vripple= 1 Vrms
30
20
10 100 1000 10000
f (Hz)
-40
-60
-80
-100
5678910
Vs (V)
Figure 14. Output noise vs. source resistance Figure 15. Power dissipation and efficiency vs.
output power (sine-wave operation)
En (uV)
130
120
Vs= 14.4 V
110
RL= 4 Ohm
100
90
80
70
60
22-22 KHz lin.
50
40
"A" wgtd
30
20
1 10 100 1000 10000 100000
R
(Ohm)
Ptot (W)
90
80
Vs= 13.2 V
70
RL= 4 x 4 Ohm
60
f= 1 KHz SINE
50
40
30
20
10
0
0 2 4 6 8 1012141618202224262830
Po (W)
n
Ptot
n (%)
90
80
70
60
50
40
30
20
10
0
10/15
TDA7560A Electrical specifications
Figure 16. Power dissipation vs. output power
(music/speech simulation);
R
=4x4Ω
L
Ptot (W)
30
Vs= 13.2 V
25
RL= 4 x 4 Ohm
GAUSSIAN NOISE
CLIP START
20
15
10
5
0123456
Po (W)
Figure 18. ITU R-ARM frequency response,
weighting filter for transient pop
Output attenuation (dB)
10
0
Figure 17. Power dissipation vs. output power
(music/speech simulation);
RL=4x2Ω
Ptot (W)
60
Vs= 13.2 V
55
RL= 4 x 2 Ohm
GAUSSIAN NOISE
50
45
40
35
30
25
20
15
10
5
0246810
CLIP START
Po (W)
-10
-20
-30
-40
-50
10 100 1000 10000 100000
Hz
AC00343
11/15
Application hints TDA7560A
3 Application hints
(ref. 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 µF.
3.2 Input stage
The TDA7560A'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 (0.1µF) 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. In absence of true CMOS ports or
microprocessors, a direct connection to Vs of these two pins is admissible but a 470 kOhm
equivalent resistance should be present between the power supply and the muting and
ST-BY pins.
R-C cells have always to be used in order to smooth down the transitions for preventing any
audible transient noises.
About the standby, the time constant to be assigned in order to obtain a virtually pop-free
transition has to be slower than 2.5 V/ms.
3.4 DC offset detector
The TDA7560A integrates a DC offset detector to avoid that an anomalous DC offset on the
inputs of the amplifier may be multiplied by the gain and result in a dangerous large offset on
the outputs which may lead to speakers damage for overheating. The feature is enabled by
the MUTE pin (according to Ta bl e 4 ) and works with the amplifier unmuted and with no
signal on the inputs.
The DC offset detection can be available at 2 different pins:
– Pin 2 (always enabled)
– Pin 26. Only enabled if Vmute (pin23) is set higher than 8V. If not (Vmute < 6 V)
pin 26 will revert to the original HSD function
3.5 Heatsink definition
Under normal usage (4 Ohm speakers) the heatsink's thermal requirements have to be
deduced from Figure 16, which reports the simulated power dissipation when real
music/speech programmes are played out. Noise with gaussian-distributed amplitude was
employed for this simulation. Based on that, frequent clipping occurrence (worst-case) will
cause P
heatsink's thermal resistance should be approximately 2 °C/W. This would avoid any
thermal shutdown occurrence even after long-term and full-volume operation
12/15
= 26 W. Assuming T
diss
= 70 °C and T
amb
= 150 °C as boundary conditions, the
CHIP
TDA7560A Package information
4 Package information
In order to meet environmental requirements, ST (also) offers these devices in ECOPACK®
packages. ECOPACK
®
packages are lead-free. The category of second Level Interconnect
is marked on the package and on the inner box label, in compliance with JEDEC Standard
JESD97. The maximum ratings related to soldering conditions are also marked on the inner
box label.
ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
Figure 19. Flexiwatt27 (vertical) mechanical data and package dimensions
DIM.
A 4.45 4.50 4.65 0.175 0.177 0.183
B 1.80 1.90 2.00 0.070 0.074 0.079
C 1.40 0.055
D 0.75 0.90 1.05 0.029 0.035 0.041
E 0.37 0.39 0.42 0.014 0.015 0.016
F (1) 0.57 0.0 22
G 0.80 1.00 1.20 0.031 0.040 0.047
G1 25.75 26.00 26.25 1.014 1.023 1.0 33
H (2) 28.90 29.23 29.30 1.139 1.150 1.153
H1 17.00 0.669
H2 12.80 0.503
H3 0.80 0.031
L (2) 22.07 22.47 22.8 7 0.869 0.884 0.9 04
L1 18.57 18.97 19.3 7 0.731 0.747 0.7 62
L2 (2) 15.50 15.70 15.90 0.610 0.618 0.626
L3 7.70 7.85 7.95 0.303 0.309 0.313
L4 5 0.197
L5 3.5 0.138
M 3 .70 4.00 4.30 0.145 0.157 0.169
M1 3.60 4.00 4.40 0.142 0.157 0.173
N 2.20 0.086
O 2 0.079
R 1.70 0.067
R1 0.5 0.02
R2 0.3 0.12
R3 1.25 0.049
R4 0.50 0.019
V5˚ (Typ.)
V1 3˚ (Typ.)
V2 20˚ (Typ.)
V3 45˚ (Typ.)
(1): dam-bar pro tusion not inc luded
(2): molding protusion included
mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
OUTLINE AND
MECHANICAL DATA
Flexiwatt27 (vertical)
V
C
B
H
V3
OL3 L4
L2
Pin 1
H3
G
H1
G1
H2
R3
N
F
V
A
R4
R2
R
L
L1
V2
R2
FLEX27ME
V1
R1
L5
R1 R1
M1
M
V1
D
E
7139011
13/15
Revision history TDA7560A
5 Revision history
Table 5. Document revision history
Date Revision Changes
16-Mar-2003 1 Initial release.
Document reformatted.
Changed the order code, see Table 1: Device summary.
29-Sep-2008 2
07-Nov-2008 3
Updated Table 4: Electrical characteristics.
Added Figure 18: ITU R-ARM frequency response, weighting filter for
transient pop.
Modified max. values of the VOS and THD parameter in Ta bl e 4 :
Electrical characteristics.
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TDA7560A
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