Philips Semiconductors
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
Product specification
TDA8561Q
FEATURES
• Requires very few external components
• High output power
• Flexibility in use; Quad single-ended or stereo BTL
• Low output offset voltage
• Fixed gain
• Diagnostic facility (distortion, short-circuit and
temperature detection)
• Good ripple rejection
• Mode select switch (operating, mute and standby)
• Load dump protection
• AC and DC short-circuit safe to ground and to VP
• Low power dissipation in any short-circuit condition
• Thermally protected
• Reverse polarity safe
• Electrostatic discharge protection
• No switch-on/switch-off plop
• Flexible leads
• Low thermal resistance
• Identical inputs (inverting and non-inverting).
GENERAL DESCRIPTION
The TDA8561Q is an integrated class-B output amplifier in
a 17-lead single-in-line (SIL) power package. It contains
4 × 12 W Single-Ended (SE) or 2 × 24 W Bridge-Tied
Load (BTL) amplifiers.
The device is primarily developed for car radio
applications.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
VP
IORM
IP
Isb
positive operating supply voltage
repetitive peak output current
total quiescent current
standby current
Stereo BTL application
Po
output power
RL = 4 Ω; THD = 10%
RR
supply voltage ripple rejection
Vno
ZI
∆VO|
noise output voltage
input impedance
DC output offset voltage
Rs = 0 Ω
Quad single-ended application
Po
output power
THD = 10%
RL = 4 Ω
RL = 2 Ω
RR
supply voltage ripple rejection
Vno
noise output voltage
ZI
input impedance
Rs = 0 Ω
MIN.
6
−
−
−
−
46
−
25
−
−
−
46
−
50
TYP.
14.4
−
80
0.1
24
−
70
−
−
7
12
−
50
−
MAX.
18
4
−
100
−
−
−
−
150
−
−
−
−
−
UNIT
V
A
mA
µA
W
dB
µV
kΩ
mV
W
W
dB
µV
kΩ
ORDERING INFORMATION
TYPE
NUMBER
TDA8561Q
PACKAGE
NAME
DESCRIPTION
DBS17P plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm)
VERSION
SOT243-1
1999 Jun 30
2