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1997 Jun 12 2
Philips 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
=5V − 812mA
I
stb
standby current −−10 µA
P
o
output power THD = 10%
R
L
=8Ω; V
CC
= 5 V 1 1.2 − W
R
L
=8Ω; V
CC
= 7.5 V − 2.2 − W
R
L
=16Ω; V
CC
=9V − 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