Philips TDA8562Q-N2-S10, TDA8562Q-N2, TDA8562Q-N1-S420, TDA8562Q-N1 Datasheet
DATA SH EET
Product specification
File under Integrated Circuits, IC01
July 1994
INTEGRATED CIRCUITS
TDA8562Q
4 x 12 W single-ended car radio
power amplifier with dynamic
distortion detector and diagnostic
interface
July 1994 2
Philips Semiconductors Product specification
4 x 12 W single-ended car radio power amplifier with
dynamic distortion detector and diagnostic interface
TDA8562Q
FEATURES
• Requires very few external components
• High output power
• Fixed gain
• Diagnostic facility (distortion, short-circuit and
temperature detection)
• Good ripple rejection
• Mode select switch (operating, mute and stand-by)
• Load dump protection
• AC and DC short-circuit safe to ground and to V
P
• 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.
GENERAL DESCRIPTION
The TDA8562Q is an integrated class-B output amplifier in
a 17-lead single-in-line (SIL) power package. It contains
4 × 12 W single-ended amplifiers.
QUICK REFERENCE DATA
ORDERING INFORMATION
Note
1. SOT243-1; 1996 August 21.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
P
positive operating supply voltage 6 14.4 18 V
I
ORM
repetitive peak output current −−4A
I
P
total quiescent current − 80 − mA
I
sb
stand-by current − 0.1 100 µA
P
o
output power THD = 10%
4 Ω−7−W
2Ω−12 − W
RR supply voltage ripple rejection 48 −−dB
V
no
noise output voltage Rs = 0 Ω−50 −µV
Z
I
input impedance 50 −−kΩ
EXTENDED TYPE NUMBER
PACKAGE
PINS PIN POSITION MATERIAL CODE
TDA8562Q
(1)
17 DBS plastic SOT243R
July 1994 3
Philips Semiconductors Product specification
4 x 12 W single-ended car radio power amplifier with
dynamic distortion detector and diagnostic interface
TDA8562Q
handbook, full pagewidth
mode
select
switch
MEA865 - 1
output 1
15 kΩ
15 kΩ
x1
VA
stand-by
switch
V
P
mute
switch
stand-by
reference
voltage
5
13
V
P1
V
P2
18 kΩ
2
kΩ
mute switch
VA
C
m
power stage
18 kΩ
mute switch
VA
C
m
power stage
6
8
14
18 kΩ
mute switch
VA
C
m
power stage
18 kΩ
mute switch
VA
C
m
power stage
12
10
2711
ground
(signal)
GND1 GND2
power ground (substrate)
output 4
output 3
output 2
input 1
input 4
17
1
TDA8562Q
mute
reference
voltage
input
reference
voltage
2
kΩ
60
kΩ
60
kΩ
input 2
3
PROTECTIONS
thermal
short-circuit
diagnostic
output
16
4
supply voltage
ripple rejection
input 3
15
2
kΩ
60
kΩ
2
kΩ
60
kΩ
9
not connected
Fig.1 Block diagram.
July 1994 4
Philips Semiconductors Product specification
4 x 12 W single-ended car radio power amplifier with
dynamic distortion detector and diagnostic interface
TDA8562Q
PINNING
The device is primarily developed for car radio
applications.
SYMBOL PIN DESCRIPTION
IN 1 1 input 1
GND(S) 2 signal ground
IN 2 3 input 2
RR 4 supply voltage ripple rejection
V
P1
5 supply voltage
OUT 1 6 output 1
GND1 7 power ground 1
OUT 2 8 output 2
n.c. 9 not connected
OUT 3 10 output 3
GND2 11 power ground 2
OUT 4 12 output 4
V
P2
13 supply voltage
MODE 14 mode select switch input
IN 3 15 input 3
V
DIAG
16 diagnostic output
IN 4 17 input 4
handbook, halfpage
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
TDA8562Q
IN 1
GND(S)
IN 2
RR
OUT 1
GND1
OUTP 2
n.c.
OUT 3
GND2
OUTP 4
V
MODE
IN 3
DIAG
IN 4
P2
V
P1
MEA866 - 1
V
Fig.2 Pin configuration.
FUNCTIONAL DESCRIPTION
The TDA8562Q contains four identical amplifiers and can
be used for single-ended applications. The gain of each
amplifier is fixed at 20 dB. Special features of the device
are:
Mode select switch (pin 14)
• low stand-by current (< 100 µA)
• low switching current (low cost supply switch)
• mute facility
To avoid switch-on plops, it is advised to keep the amplifier
in the mute mode during ≥ 100 ms (charging of the input
capacitors at pin 1, 3, 15 and pin 17).
This can be achieved by:
• microprocessor control
• external timing circuit (see Fig.7)
Diagnostic output (pin 16)
DYNAMIC DISTORTION DETECTOR (DDD)
At the onset of clipping of one or more output stages, the
dynamic distortion detector becomes active and pin 16
goes low. This information can be used to drive a sound
processor or DC volume control to attenuate the input
signal and thus limit the distortion. The output level of pin
16 is independent of the number of channels that are
clipping (see Fig.3).
July 1994 5
Philips Semiconductors Product specification
4 x 12 W single-ended car radio power amplifier with
dynamic distortion detector and diagnostic interface
TDA8562Q
SHORT-CIRCUIT PROTECTION
When a short-circuit occurs at one or more outputs to
ground or to the supply voltage, the output stages are
switched off until the short-circuit is removed and the
device is switched on again, with a delay of approximately
20 ms, after removal of the short-circuit. During this
short-circuit condition, pin 16 is continuously low.
When a short-circuit across the load of one or more
channels occurs the output stages are switched off during
approximately 20 ms. After that time it is checked during
approximately 50 µs to see whether the short-circuit is still
present. Due to this duty cycle of 50µs/20 ms the average
current consumption during this short-circuit condition is
very low (approximately 40 mA).
During this short-circuit condition, pin 16 is low for 20 ms
and high for 50 µs (see Fig.4).
The power dissipation in any short-circuit condition is very
low.
TEMPERATURE DETECTION
When the virtual junction temperature Tvj reaches 150 °C,
pin 16 will be active LOW.
OPEN COLLECTOR OUTPUT
Pin 16 is an open collector output, which allows pin 16 of
more devices being tied together.
Fig.3 Distortion detector waveform.
handbook, halfpage
0
V
P
V
O
t
0
MGA706
V
16
Fig.4 Short-circuit waveform.
handbook, full pagewidth
MGA707
short-circuit over the load
20 ms
50 µs
t
t
V
P
current
in
output
stage
V
15
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