1997 Jun 12
2
NXP Semiconductors
Product specification
2 W BTL audio amplifier
TDA8543
FEATURES
•
Flexibility in use
•
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
•
High supply voltage ripple rejection
•
Protected against electrostatic discharge
•
Outputs short-circuit safe to ground, V
CC
and across
the load
•
Thermally protected.
GENERAL DESCRIPTION
The TDA8543(T) is a one channel audio power amplifier
for an output power of 2 W with an 8
Ω
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.
APPLICATIONS
•
Portable consumer products
•
Personal computers
•
Telephony.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
CC
supply voltage
2.2
5
18
V
I
q
quiescent current
V
CC
= 5 V
−
8
12
mA
I
stb
standby current
−
−
10
μ
A
P
o
output power
THD = 10%
R
L
= 8
Ω
; V
CC
= 5 V
1
1.2
−
W
R
L
= 8
Ω
; V
CC
= 7.5 V
−
2.2
−
W
R
L
= 16
Ω
; V
CC
= 9 V
−
2.0
−
W
THD
total harmonic distortion
P
o
= 0.5 W
−
0.15
−
%
SVRR
supply voltage ripple rejection
50
−
−
dB
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
