TDA8543.PDF

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2 W BTL audio amplifier
INTEGRATED CIRCUITS
DATA SHEET
TDA8543
2 W BTL audio amplifier
Product specification
File under Integrated Circuits, IC01
1997 Jun 12
11038081.049.png
Philips Semiconductors
Product specification
2 W BTL audio amplifier
TDA8543
FEATURES
GENERAL DESCRIPTION
·
Flexibility in use
The TDA8543(T) is a one channel audio power amplifier
for an output power of 2 W with an 8 W load at a 7.5 V
supply. The circuit contains a BTL amplifier with
a complementary PNP-NPN output stage and
standby/mute logic. The TDA8543T comes in a 16 pin
SO package and the TDA8543 in a 16 pin DIP package.
·
Few external components
·
Low saturation voltage of output stage
·
Gain can be fixed with external resistors
·
Standby mode controlled by CMOS compatible levels
·
Low standby current
·
No switch-on/switch-off plops
APPLICATIONS
·
High supply voltage ripple rejection
·
Portable consumer products
·
Protected against electrostatic discharge
·
Personal computers
·
Outputs short-circuit safe to ground, V CC and across
the load
·
Telephony.
·
Thermally protected.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
V CC
supply voltage
2.2
5
18
V
I q
quiescent current
V CC =5V
-
8
12
A
I stb
standby current
-
-
10
m
A
P o
output power
THD = 10%
R L =8 W ; V CC = 5 V
1
1.2
-
W
R L =8
W
; V CC = 7.5 V
-
2.2
-
W
R L =16
W
; V CC =9V
-
2.0
-
W
THD
total harmonic distortion
P o = 0.5 W
-
0.15
-
%
SVRR
supply voltage ripple rejection
50
-
-
dB
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA8543T
SO16 plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
TDA8543
DIP16 plastic dual in-line package; 16 leads (300 mil); long body
SOT38-1
1997 Jun 12
2
11038081.050.png
Philips Semiconductors
Product specification
2 W BTL audio amplifier
TDA8543
BLOCK DIAGRAM
handbook, halfpage
TDA8543
-
-
+
IN -
IN
6
11
OUT -
5
+
R
V CC
12
R
20 k W
-
-
+
14
OUT
+
4
SVR
20 k
W
MODE
3
STANDBY/MUTE LOGIC
13
GND
MGK402
Fig.1 Block diagram.
PINNING
SYMBOL
PIN
DESCRIPTION
n.c.
1
not connected
n.c.
2
not connected
MODE
3
operating mode select
(standby, mute, operating)
handbook, halfpage
n.c.
1
16
n.c.
SVR
4
half supply voltage, decoupling
ripple rejection
n.c.
2
15
n.c
MODE
3
14
OUT
+
IN+
5
positive input
SVR
4
13
GND
IN
6
negative input
TDA8543
IN +
5
12
V CC
n.c.
7
not connected
n.c.
8
not connected
IN -
6
11
OUT -
n.c.
9
not connected
n.c.
7
10
n.c.
n.c.
10
not connected
n.c.
8
9
n.c
OUT
-
11
negative loudspeaker terminal
MGK401
V CC
12
supply voltage
GND
13
ground
OUT+
14
positive loudspeaker terminal
n.c.
15
not connected
Fig.2 Pin configuration.
n.c.
16
not connected
1997 Jun 12
3
-
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Philips Semiconductors
Product specification
2 W BTL audio amplifier
TDA8543
FUNCTIONAL DESCRIPTION
The voltage loss on the positive supply line is
the saturation voltage of a PNP power transistor,
on the negative side the saturation voltage of an
NPN power transistor.
The TDA8543(T) is a BTL audio power amplifier capable
of delivering an output power between 1 and 2 W,
depending on supply voltage, load resistance
and package. Using the MODE pin the device can
be switched to standby and mute condition. The device
is protected by an internal thermal shutdown protection
mechanism.
The gain can be set within a range from 6 dB to 30 dB
by external feedback resistors.
Mode select pin
0.5 V), or if this pin is floating. At a MODE
voltage level of less than 0.5 V the amplifier is fully
operational.
In the range between 1.5 V and V CC - 1.5 V the amplifier
is in mute condition. The mute condition is useful to
suppress plop noise at the output, caused by charging of
the input capacitor.
Power amplifier
The power amplifier is a Bridge Tied Load (BTL) amplifier
with a complementary PNP-NPN output stage.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V CC
supply voltage
operating
-
0.3
+18
V
V I
input voltage
-
0.3
V CC + 0.3 V
I ORM
repetitive peak output current
-
1
A
T stg
storage temperature
non-operating
- 55
+150
° C
T amb
operating ambient temperature
-
40
+85
°
C
V psc
AC and DC short-circuit safe voltage
-
10
V
P tot
total power dissipation
SO16
-
1.2
W
DIP16
-
2.2
W
QUALITY SPECIFICATION
In accordance with “SNW-FQ-611-E”. The number of the quality specification can be found in the “Quality Reference
Handbook”. The handbook can be ordered using the code 9397 750 00192.
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
VALUE
UNIT
R th j-a
thermal resistance from junction to ambient
in free air
TDA8543T (SO16)
100
K/W
TDA8543 (DIP16)
55
K/W
1997 Jun 12
4
The device is in standby mode (with a very low current
consumption) if the voltage at the MODE
pin is >(V CC -
11038081.032.png
Philips Semiconductors
Product specification
2 W BTL audio amplifier
TDA8543
MGK410
2.5
handbook, halfpage
P
(W)
2.0
1.5
(1)
1
(2)
0.5
0
0
40
80
120
T amb (
160
°
C)
(1) DIP16.
(2) SO16.
Fig.3 Power derating curve.
Table 1
CONTINUOUS SINE WAVE DRIVEN
V CC (V)
R L ( W )
P o (W) (1)
P max (W)
T amb(max) ( ° C)
SO16
DIP16
5
8
1.2
0.7
80
112
7.5
8
2.2
1.6
-
62
7.5
16
1.4
0.9
60
100
9
16
2.0
1.3
-
78
9
25
1.3
0.9
60
100
Note
1. At THD = 10%; BTL.
1997 Jun 12
5
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