July 1994
2
Philips Semiconductors
Product specification
2 x 22 W stereo BTL differential
amplifier with speaker protection and
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 (V
P
= 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
ORDERING INFORMATION
Note
1. SOT243-1; 1996 August 19.
SYMBOL
PARAMETER
CONDITION
MIN.
TYP.
MAX.
UNIT
V
P
positive supply voltage
operating
6.0
14.4
18
V
non-operating
−
−
30
V
load dump
−
−
45
V
I
ORM
repetitive peak output current
−
−
4
A
I
P
total quiescent current
−
80
−
mA
I
sb
stand-by current
−
0.1
100
µ
A
I
sw
switch-on current
−
−
60
µ
A
Z
i
input impedance
50
−
−
k
Ω
T
vj
virtual junction temperature
−
−
150
°
C
P
O
output power
4
Ω
; THD = 10%
−
22
−
W
SVRR
supply voltage ripple rejection
R
S
= 0
Ω
; f = 100 Hz to 10 kHz 48
−
−
dB
V
os
DC output offset voltage
−
−
100
mV
α
channel separation
40
−
−
dB
∆
G
v
channel unbalance
−
−
1
dB
CMRR
rejection ratio
−
72
−
dB
EXTENDED TYPE NUMBER
PACKAGE
PINS
PIN POSITION
MATERIAL
CODE
TDA1556Q
(1)
17
SIL
plastic
SOT243R
