ST TDA7565 User Manual

Quad power amplifier with integrated step-up converter
Features
Multipower BCD technology
DMOS power output
Non-switching high efficiency amplifier
High output power capability:
– 4 x 41 W max @ V – 4 x 59 W @ V
Full I
2
C bus driving: – Standby – Independent front/rear soft play/mute – Selectable gain 26 dB - 12 dB (for low noise
line output function) – High efficiency enable/disable – Voltage converter enable/disable – Regulated voltage selection – Switching frequency selection
Hardware mute function
Full fault protection
DC offset detection
Four independent short circuit protection
Clipping detector with selectable threshold
(1 % / 10 %) via I

Table 1. Device summary

= 14.4 V
s
= 14.4 V and PWM = 17.5 V
s
2
C bus
TDA7565
Flexiwatt27
Description
The TDA7565 is a new BCD technology quad bridge type of car radio amplifier in Flexiwatt27 package specially intended for car radio applications.
Thanks to the DMOS output stage the TDA7565 has a very low distortion allowing a clear powerful sound.
The built-in voltage converter control block assures a very high output power with an extremely low number of added components.
Furthermore, the converter makes the TDA7565 compliant to the most recent OEM specifications for low voltage operation (so called 'start-stop' battery profile during engine stop), helping car manufacturers to reduce the overall emissions and thus contributing to environment protection.
Order code Package Packing
TDA7565 Flexiwatt27 Tube
February 2010 Doc ID 9800 Rev 4 1/19
www.st.com
1
Contents TDA7565
Contents
1 Block and pin connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Electrical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3I
2
C bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Data validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Start and stop conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Byte format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.4 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Software specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5 Examples of bytes sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6 Low voltage "start-stop" operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2/19 Doc ID 9800 Rev 4
TDA7565 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. Chip address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 6. IB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 7. IB2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 8. DB1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 9. DB2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 10. DB3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 11. DB4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 12. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Doc ID 9800 Rev 4 3/19
List of figures TDA7565
List of figures
Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3. Demoboard schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 4. Data validity on the I2C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 5. Timing diagram on the I2C bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 6. Acknowledge on the I2C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 7. Worst case condition for a start-stop system diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 8. Flexiwatt27 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . 17
4/19 Doc ID 9800 Rev 4
TDA7565 Block and pin connection diagrams
A

1 Block and pin connection diagrams

Figure 1. Block diagram

V
S
MUTE
CLK
V
CC1
V
CC2DATA CC GND
I2C BUS
MUTE1
MUTE2
IN RF
IN RR
IN LF
IN LR
F
R
F
R
SVR RF RR LF LR TAB S_GNDAC_GND

Figure 2. Pin connection (top view)

12/26dB
12/26dB
12/26dB
12/26dB
PW_GND
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CLIP
DETECTOR
SHORT CIRCUIT
PROTECTION
SHORT CIRCUIT
PROTECTION
SHORT CIRCUIT
PROTECTION
SHORT CIRCUIT
PROTECTION
MUTE
DATA
PW_GND RR
OUT RR-
CK
OUT RR+
V
CC2
OUT RF-
PW_GND RF
OUT RF+
AC_GND
IN RF
IN RR
S_GND
IN LR
IN LF
SVR
OUT LF+
PW_GND LF
OUT LF-
V
CC1
OUT LR+
CC GND
OUT LR-
PW_GND LR
MG
TAB
D00AU1233
VOLTAGE
CONVERTER
CONTROL
MG
OUT RF+
OUT RF-
OUT RR+
OUT RR-
OUT LF+
OUT LF-
OUT LR+
OUT LR-
D00AU1232A
VOLTAGE
CONVERTER
EXTERNAL
CIRCUIT
Doc ID 9800 Rev 4 5/19
Electrical specification TDA7565

2 Electrical specification

2.1 Absolute maximum ratings

Table 2. Absolute maximum ratings

Symbol Parameter Value Unit
V
opc OFF
V
opc ON
V
V
peak
V
V
DATA
I
I
P
T
stg
Operating supply voltage, converter off 18 V
Operating supply voltage, converter on 25 V
DC supply voltage 28 V
S
Peak supply voltage (for t = 50 ms) 50 V
CK pin voltage 6 V
CK
Data pin voltage 6 V
Output peak current (not repetitive t = 100 µs) 8 A
O
Output peak current (repetitive f > 10 Hz) 6 A
O
Power dissipation T
tot
, TjStorage and junction temperature -55 to 150 °C

2.2 Thermal data

Table 3. Thermal data

Symbol Description Value Unit
R
th j-case
Thermal resistance junction to case Max. 1 °C/W
= 70 °C 80 W
case

2.3 Electrical characteristics

Refer to the test circuit, VS = 14.4 V; RL = 4 Ω; f = 1 kHz; voltage converter disabled (VC T
= 25 °C; unless otherwise specified.
amb
Table 4. Electrical characteristics
Symbol Parameter Test condition Min. Typ. Max. Unit
Power amplifier
V
S
I
d
I
d
P
O
6/19 Doc ID 9800 Rev 4
Supply voltage range - 8 - 18 V
Total quiescent drain current - - 250 300 mA
Total quiescent drain current (VCon)
Output power (VC
)
off
V = 14.4 V
--350-mA
Max power
THD = 10 % THD = 1 %
(1)
-41-W
22 18
27 22
-
W W
Off
);
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