Philips Semiconductors
2 x 22 W stereo BTL differential
amplifier with speaker protection and
Product specification
TDA1556Q
FEATURES
• Few peripheral components
• High output power
• Low output offset voltage
• Fixed gain
• Loudspeaker protection (with diagnostic facility)
• Differential inputs
• Dynamic Distortion Detector (DDD)
• High common mode input signal
• Very high CMRR
• Good ripple rejection
• Mute/stand-by switch
• Load dump protection
• Short-circuit safe
• Thermally protected
• Reverse polarity safe
• High energy handling capability at the outputs (VP = 0 V)
• Electrostatic discharge protection
• No switch-on/switch-off plop
• Flexible leads
• Low thermal resistance
GENERAL DESCRIPTION
TDA1556Q is a monolithic integrated class-B output
amplifier containing two 22 Watt amplifiers in a BTL
configuration. The device is contained in a 17-lead
single-in-line (SIL) plastic power package. It has two
differential inputs and is primarily intended for car booster
applications.
QUICK REFERENCE DATA
SYMBOL
VP
PARAMETER
positive supply voltage
IORM
IP
Isb
Isw
Zi
Tvj
PO
SVRR
Vos
α
∆Gv
CMRR
repetitive peak output current
total quiescent current
stand-by current
switch-on current
input impedance
virtual junction temperature
output power
supply voltage ripple rejection
DC output offset voltage
channel separation
channel unbalance
rejection ratio
CONDITION
MIN. TYP. MAX. UNIT
operating
6.0
non-operating
−
load dump
−
−
−
−
−
50
−
4 Ω; THD = 10%
−
RS = 0 Ω; f = 100 Hz to 10 kHz 48
−
40
−
−
14.4 18
V
−
30
V
−
45
V
−
4
A
80
−
mA
0.1 100 µA
−
60
µA
−
−
kΩ
−
150 °C
22
−
W
−
−
dB
−
100 mV
−
−
dB
−
1
dB
72
−
dB
ORDERING INFORMATION
EXTENDED TYPE NUMBER
TDA1556Q(1)
Note
1. SOT243-1; 1996 August 19.
PINS
17
PACKAGE
PIN POSITION
SIL
MATERIAL
plastic
CODE
SOT243R
July 1994
2