1998 Apr 01 2
Philips Semiconductors Product specification
2 × 1 W BTL audio amplifier TDA8542
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.
APPLICATIONS
• Portable consumer products
• Personal computers
• Motor-driver (servo).
GENERAL DESCRIPTION
The TDA8542(T) is a two channel audio power amplifier
for an output power of 2 × 1 W with an 8 Ω load at a 5 V
supply. The circuit contains two BTL amplifiers with a
complementary PNP-NPN output stage and standby/mute
logic. The TDA8542T comes in a 16 pin SO package and
the TDA8542 in a 16 pin DIP package.
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 − 15 22 mA
I
stb
standby current −−10 µA
P
o
output power THD = 10%; R
L
=8Ω; V
CC
=5V 1 1.2 − 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
TDA8542T SO16L plastic small outline package; 16 leads; body width 7.5 mm SOT162-1
TDA8542 DIP16 plastic dual in-line package; 16 leads (300 mil); long body SOT38-1
