Document Outline
- FEATURES
- DESCRIPTION
- QUICK REFERENCE DATA
- ORDERING INFORMATION
- PINNING
- FUNCTIONAL DESCRIPTION
- LIMITING VALUES
- QUALITY SPECIFICATION
- THERMAL RESISTANCE
- DC CHARACTERISTICS
- AC CHARACTERISTICS
- PACKAGE OUTLINE
- SOLDERING
- DEFINITIONS
- LIFE SUPPORT APPLICATIONS
- PURCHASE OF PHILIPS I 2 C COMPONENTS
DATA SHEET
Preliminary specification
File under Integrated Circuits, IC01
July 1994
INTEGRATED CIRCUITS
TDA1551Q
2 x 22 W BTL car radio power
amplifier with diagnostic facility
July 1994
2
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
FEATURES
Requires very few external components
Flexible in use - quad, single ended or stereo BTL
I
2
C-bus control
Dynamic distortion detector
Thermal protection
Output status information
Power supply dip detection
High output power
MUTE/sleep mode by writing to I
2
C-bus
Stand-by mode
Fixed gain
Good ripple rejection
Load dump protection
AC/DC short circuit safe to ground and V
P
Reverse polarity safe
Low offset voltage at output
Capable of handling high energy at outputs (V
P
= 0 V)
Electrostatic discharge protection
No switch-ON/switch-OFF plop
Flexible leads
Low thermal resistance
Identical inputs (inverting and non-inverting).
DESCRIPTION
The TDA1551Q is an integrated class-B output amplifier
encased in a 17-lead single-in-line plastic power package.
The device contains 4
11 W single-ended (SE) or 2
22
W BTL amplifiers and is intended for use in car radio
applications.
QUICK REFERENCE DATA
ORDERING INFORMATION
Note
1. SOT243-1; 1996 September 06.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
P
supply voltage range
operating
6
14.4
18
V
V
P
supply voltage
non-operating
-
-
30
V
I
P
total quiescent current
-
80
160
mA
Quad-single-ended application
P
o
output power
R
L
= 4
; THD = 10 %
-
6
-
W
R
L
= 2
; THD = 10 %
-
11
-
W
V
no
output voltage noise
R
S
= 0
-
50
-
V
Stereo BTL application
P
o
output power
R
L
= 4
; THD = 10 %
-
22
-
W
V
no
output voltage noise
R
S
= 0
-
70
-
V
V
o
DC output offset voltage
-
-
100
mV
EXTENDED TYPE
NUMBER
PACKAGE
PINS
PIN POSITION
MATERIAL
CODE
TDA1551Q
17
SIL bent to DIL
plastic
SOT243R
(1)
July 1994
3
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
Fig.1 Block diagram.
July 1994
4
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
PINNING
SYMBOL
PIN
DESCRIPTION
-
INV1
1
non-inverting input 1
INV1
2
inverting input 1
GND
3
signal ground
V
PRR
4
supply voltage ripple rejection
V
p1
5
positive supply voltage 1
OUT1
6
output 1
GND1
7
power ground 1
OUT2
8
output 2
SB
9
standby
OUT3
10
output 3
GND2
11
power ground 2
OUT4
12
output 4
V
p2
13
positive supply voltage 2
INV2
14
inverting input 2
-
INV2
15
non-inverting input 2
SCL
16
serial clock line
SDA
17
serial data line
Fig.2 Pin configuration
handbook, halfpage
INV1
SGND
VPRR
OUT1
PGDN1
OUT2
STBY
OUT3
PGND2
OUT4
INV2
NINV2
SCL
SDA
1
VP
2
VP
1
2
3
4
5
6
7
8
9
10
11
12
13
17
16
15
14
TDA1551Q
MLA007
INV1
July 1994
5
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
FUNCTIONAL DESCRIPTION
The TDA1551Q contains four identical amplifiers with differential input stages (two inverting and two non-inverting) which
can be used in SE or BTL applications. The gain of each amplifier is fixed at 20 dB for SE and 26 dB for BTL. The device
also contains an I
2
C-bus facility which operates in the read or write mode.
In the write mode the device can be switched to either the sleep condition (low sleep current of 0.6 mA typ.), the MUTE
condition or the ON condition.
In the read mode an 8-bit status word is available. Data bits D0 to D3 contain status information of each of the 4 outputs.
If the device is switched to the ON or MUTE condition and there is a short-circuit at one or more outputs, the power
transistors will be outside their safe operating area consequently one or more bits of D0 to D3 will be HIGH. Bits D0 to
D3 are LOW when in the normal safe operating area. Bit D4 is normally LOW if one or more channels reaches the clipping
level D4 will go HIGH. Bit D5 is normally LOW, if the crystal temperature reaches 150
C D5 will go HIGH. After a
power-on reset bit 7 will go HIGH and a dip in the power supply will be noticed. Bit 7 will go LOW after the I
2
C-bus is
read. When pin 9 is LOW the device will switch OFF and the supply current will be reduced to 0.1 mA (max.).
Fig.3 Thermal equivalent resistance network.
handbook, halfpage
virtual junction
4 K/W
0.8 K/W
0.1 K/W
6
8
10
12
MLA009
July 1994
6
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
LIMITING VALUES
In accordance with the Absolute Maximum System (IEC134)
QUALITY SPECIFICATION
Electrostatic handling.
THERMAL RESISTANCE
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
Supply voltage
V
P
operating voltage
-
18
V
V
P
non-operating voltage
-
30
V
load dump protect
-
45
V
IOSM
non-repetitive peak output current
-
6
A
IORM
repetitive peak output current
-
4
A
T
stg
storage temperature range
-
55
150
C
T
c
crystal temperature
-
150
C
V
Psc
AC/DC short-circuit safe voltage
-
18
V
energy handling capability at outputs (V
P
= 0)
-
200
mJ
V
Pr
reverse polarity
-
6
V
P
tot
total power dissipation
-
60
W
SYMBOL
PINS
MIN.
MAX.
UNIT
Human body model; R
S
= 1500
; C = 100 pF
V
es
1, 2, 14, 15, 16, and 17
-
1.5
+
1.5
kV
other
-
2
+
2
kV
Machine model; R
S
= 0
; C = 200 pF
V
es
1, 2, 14, 15, 16, and 17
-
100
+
100
V
other
-
200
+
200
V
SYMBOL
PARAMETER
THERMAL RESISTANCE
R
th j-c
from junction to case (Fig.3)
1.5 K/W
R
th j-a
from junction to ambient in free air
40 K/W
July 1994
7
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
DC CHARACTERISTICS
V
P
= 14.4 V; T
amb
= 25
C' measurements in accordance with Fig.6 unless otherwise stated.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
V
P
supply voltage
note 1
6
14.4
18
V
I
P
quiescent current
-
80
160
mA
V
O
DC output voltage
note 2
-
6.9
-
V
|
V
o
|
DC output offset voltage
-
-
100
mV
MUTE/sleep/standby
V
O
output signal in MUTE position
V
I(max)
= 1 V;
f = 20 Hz to 10 kHz
-
-
2
mV
I
P
DC current in sleep condition
V9 > 3V
-
0.6
1
mA
I
P
DC current in standby condition
V9 < 2 V
-
-
0.1
mA
V
o
DC output offset voltage
-
-
100
mV
July 1994
8
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
AC CHARACTERISTICS
V
P
= 14.4 V; T
amb
= 25
C; f = 1 kHz; R
L
= 4
; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Stereo BTL application (Fig.7)
P
O
output power
THD = 0.5%
15
17
-
W
20
22
-
W
P
O
output power
V
P
= 13.2V
THD = 0.5%
-
12
-
W
THD = 10%
-
17
-
W
THD
total harmonic distortion
P
O
= 1 W
-
0.05
-
%
B
power bandwidth
THD = 0.5%; P
O
=
-
1 dB
with respect to 15 W
-
20 -
15000
-
Hz
f
LOW
low frequency roll-off
at
-
3 dB; note 3
-
25
-
Hz
f
HIGH
high frequency roll-off
at
-
1 dB
20
-
-
kHz
G
v
closed loop voltage gain
25
26
27
dB
V
PRR
supply voltage ripple rejection
ON; note 4
48
-
-
dB
MUTE; note 4
48
-
-
dB
standby; note 4
80
-
-
dB
Z
i
input impedance
25
30
38
k
V
no
noise output voltage
ON; R
S
= 0; note 5
-
70
-
V
ON; R
S
= 10 k
; note 5
-
100
200
V
MUTE; notes 5 and 6
-
60
-
V
channel separation
R
S
= 10 k
40
-
-
dB
G
v
channel unbalance
-
-
1
dB
dynamic distortion detector
switch level
-
3.5
-
%
Quad single-ended application (Fig.6)
P
O
output power
THD = 0.5%; note 7
4
5
-
W
THD = 10%; note 7
5.5
6
-
W
P
O
output power
R
L
= 2
THD = 0.5%; note 7
7.5
8.5
-
W
THD = 10%; note 7
10
11
-
W
THD
total harmonic distortion
P
O
= 1 W
-
0.05
-
%
f
LOW
low frequency roll-off
at
-
3 dB; note 3
-
25
-
Hz
f
HIGH
high frequency roll-off
at
-
1 dB
20
-
-
kHz
G
v
closed loop voltage gain
19
20
21
dB
V
PRR
supply voltage ripple rejection
ON; note 4
48
-
-
dB
MUTE; note 4
48
-
-
dB
stand-by; note 4
80
-
-
dB
Z
i
input impedance
50
60
75
k
V
no
noise output voltage
ON; R
S
= 0; note 5
-
50
-
V
ON; R
S
= 10 k
; note 5
-
70
100
V
July 1994
9
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
Notes to the characteristics
1. The circuit is DC adjusted at V
P
= 6 V and AC operating at V
P
= 8 to 18 V.
2. At 18 V < V
P
< 30 V the DC output voltage < V
P
/2.
3. Frequency response externally fixed.
4. Ripple rejection measured at the output with a source impedance of 0
and at frequency of 100 Hz to 10 kHz
(amplitude = 2 V(p-p)).
5. Noise voltage measured in a bandwidth of 20 Hz to 20 kHz.
6. Noise output voltage independent of R
S
(V
I
= 0 V).
7. Output power is measured directly at the output pins of the IC.
MUTE; notes 5 and 6
-
60
-
V
channel separation
R
S
= 10 k
40
-
-
dB
G
v
channel unbalance
-
-
1
dB
dynamic distortion detector
switch level
-
3.5
-
%
I
2
C-bus (see I2C-bus protocol)
V
IH
input voltage HIGH
3
-
5.5
V
V
IL
input voltage LOW
-
0.3
-
1.5
V
I
IH
input current HIGH
V = 5.5 V
-
10
-
10
A
I
IL
input current LOW
V = GND
-
10
-
10
A
V
OL
output voltage LOW
I
L
= 3 mA
-
-
0.4
V
Power-on reset (increasing supply voltage)
V
P
start of reset
0.5
-
-
V
end of reset
-
-
5
V
Standby (pin 9)
V
9
input voltage HIGH
3
-
V
P
V
input voltage LOW
-
-
2
V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
July 1994
10
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
I
2
C-bus protocol
Table 1
WRITE definition (R/W = LOW)
Notes
1. For test purposes only; I
2
C-bus is in the ON condition, amplifier is in the stand-by condition.
2. To get into the ON condition without switch-on plops, the device should be switched from the SLEEP condition to the
MUTE condition and then, after a period of 150 ms, to the ON condition.
Bit D0 switches from SLEEP to the ON condition
Bit D1 switches the MUTE condition
MSB
DATA
LSB
Function
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
SLEEP condition
0
0
0
0
0
0
0
1
MUTE condition
0
0
0
0
0
0
1
0
not allowed
(1)
0
0
0
0
0
0
1
1
ON condition
(2)
Fig.4 I
2
C-bus protocol.
S: start condition.
R/W: read/write bit; LOW = write.
ACK: acknowledge, generated by the receiving device.
DATA: see Tables 1 and 3.
P: stop conditions.
handbook, full pagewidth
S
1
1
0
1
1
0
0
ACK
D7
D6
D5
D4
D3
D2
D1
D0
ACK
P
R/W
MLA006
SLAVE ADDRESS
DATA
July 1994
11
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
Table 2
READ definition (R/W = HIGH)
Notes
1. LOW after reading I
2
C-bus.
2. HIGH after power-on reset.
3. LOW if crystal temperature < 150
C.
4. HIGH if crystal temperature reaches 150
C.
5. LOW if not clipping.
6. HIGH if one or more channels are clipping.
7. output status information.
If the device is sinewave driven bit D4 will be HIGH if the THD in one or more channels exceeds 3.5%.
Table 3
Fault conditions
If more outputs are in a fault condition (e.g. short-circuit) then more bits, D3 to D0, will be HIGH.
D7
(1)(2)
D6
D5
(3)(4)
D4
(5)(6)
D3
(7)
D2
(7)
D2
(7)
D0
(7)
DATA
MSB
D3
D2
D1
D0
FUNCTION
0
0
0
0
all output power transistors in the normal
safe operating condition
-
-
-
1
fault condition pin 6
-
-
1
-
fault condition pin 8
-
1
-
-
fault condition pin 10
1
-
-
-
fault condition pin 12
July 1994
12
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
Fig.5 State diagram.
handbook, full pagewidth
I
2
C-bus standby
amplifier standby
power-on reset
11
10
00
00
00
10
amplifier standby
(test only)
ON
I
2
C-bus
amplifier ON
ON
I
2
C-bus
MUTE
amplifier ON
ON
I
2
C-bus
DINI
11
01
11
01
10
01
10
00
11
01
MLA008
July 1994
13
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
Fig.6 Test circuit quad single-ended.
July 1994
14
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
Fig.7 Test circuit stereo BTL.
July 1994
15
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
PACKAGE OUTLINE
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC
JEDEC
EIAJ
DIMENSIONS (mm are the original dimensions)
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
SOT243-1
0
5
10 mm
scale
D
L
E
A
c
A
2
L
3
Q
w
M
b
p
1
d
D
Z
e
e
x
h
1
17
j
Eh
non-concave
95-03-11
97-12-16
DBS17P: plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm)
SOT243-1
view B: mounting base side
m
2
e
v
M
B
UNIT
A
e
1
A
2
b
p
c
D
(1)
E
(1)
Z
(1)
d
e
D
h
L
L
3
m
mm
17.0
15.5
4.6
4.2
0.75
0.60
0.48
0.38
24.0
23.6
20.0
19.6
10
2.54
v
0.8
12.2
11.8
1.27
e
2
5.08
2.4
1.6
E
h
6
2.00
1.45
2.1
1.8
3.4
3.1
4.3
12.4
11.0
Q
j
0.4
w
0.03
x
July 1994
16
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
SOLDERING
Introduction
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our
"IC Package Databook" (order code 9398 652 90011).
Soldering by dipping or by wave
The maximum permissible temperature of the solder is
260
C; solder at this temperature must not be in contact
with the joint for more than 5 seconds. The total contact
time of successive solder waves must not exceed
5 seconds.
The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified maximum storage temperature (T
stg max
). If the
printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.
Repairing soldered joints
Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300
C it may remain in
contact for up to 10 seconds. If the bit temperature is
between 300 and 400
C, contact may be up to 5 seconds.
July 1994
17
Philips Semiconductors
Preliminary specification
2 x 22 W BTL car radio power amplifier
with diagnostic facility
TDA1551Q
DEFINITIONS
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
PURCHASE OF PHILIPS I
2
C COMPONENTS
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
Purchase of Philips I
2
C components conveys a license under the Philips' I
2
C patent to use the
components in the I
2
C system provided the system conforms to the I
2
C specification defined by
Philips. This specification can be ordered using the code 9398 393 40011.
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