2001 Feb 21

Philips Semiconductors

Product specification

2 x 40 W/2

stereo BTL car radio power amplifier

with differential inputs and diagnostic outputs

TDA8566Q

FEATURES

Differential inputs

Very high Common Mode Rejection Ratio (CMRR)

High common mode input signal handling

Requires very few external components

High output power

4 and 2

load driving capability

Low offset voltage at output

Fixed gain

Diagnostic facility (distortion, short-circuit and
temperature pre-warning)

Good ripple rejection

Mode select switch (operating, mute and standby)

Load dump protection

Short-circuit proof to ground, to V

and across the load

Low power dissipation in any short-circuit condition

Thermally protected

Reverse polarity safe

Protected against electrostatic discharge

No switch-on/switch-off plop

Flexible leads

Low thermal resistance.

GENERAL DESCRIPTION

The TDA8566Q is an integrated class-B output amplifier
contained in a 17-lead single-in-line (SIL; bent to DIL)
plastic power package. The device contains 2 amplifiers in
a Bridge-Tied Load configuration (BTL). The output power
is 2

25 W in a 4

load or 2

40 W in a 2

load. It has

a differential input stage and 2 diagnostic outputs. The
device is primarily developed for car radio applications.

QUICK REFERENCE DATA

ORDERING INFORMATION

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

operating supply voltage

14.4

ORM

repetitive peak output current

7.5

q(tot)

total quiescent current

115

stb

standby current

0.1

switch-on current

input impedance

100

120

out

output power

= 4

; THD = 10%

= 2

; THD = 10%

SVRR

supply voltage ripple rejection

= 0

channel separation

= 10 k

CMRR

common mode rejection ratio

closed loop voltage gain

noise output voltage

= 0

120

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA8566Q

DBS17P

plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm)

SOT243-1

2001 Feb 21

Philips Semiconductors

Product specification

2 x 40 W/2

stereo BTL car radio power amplifier with

differential inputs and diagnostic outputs

TDA8566Q

PINNING

SYMBOL

PIN

DESCRIPTION

IN1+

channel 1 input positive

IN1

channel 1 input negative

SGND

small signal ground

CLIP

clip detection

supply voltage 1

OUT1+

channel 1 speaker output positive

PGND1

channel 1 negative power supply
(ground)

OUT1

channel 1 speaker output negative

n.c.

not connected

OUT2+

channel 2 speaker output positive

PGND2

channel 2 negative power supply
(ground)

OUT2

channel 2 speaker output negative

supply voltage 2

MODE

mode select switch
(standby/mute/operating)

DIAG

short-circuit and temperature
pre-warning diagnostic

IN2+

channel 2 input positive

IN2

channel 2 input negative

handbook, halfpage

TDA8566Q

MGD101

IN1

SGND

CLIP

VP1

OUT1

PGND1

OUT1

n.c.

IN2

DIAG

MODE

VP2

OUT2

PGND2

OUT2

Fig.2 Pin configuration.

FUNCTIONAL DESCRIPTION

The TDA8566Q contains 2 identical amplifiers and can be
used for BTL applications. The gain of each amplifier is
fixed at 26 dB. Special features of this device are:

1. Mode select switch

2. Clip detection

3. Short-circuit diagnostic

4. Temperature pre-warning

5. Open-collector outputs

6. Differential inputs.

Mode select switch (pin 14)

Standby: low supply current

Mute: input signal suppressed

Operating: normal on condition.

Since this pin has a very low input current (<40

A), a low

cost supply switch can be applied. To avoid switch-on
plops, it is advisable to keep the amplifier in the mute mode
for a period of

150 ms (charging the input capacitors at

pins 1, 2, 16 and 17). This can be realized by
microcontroller control or by an external timing circuit (see
Fig.7).

Clip detection (pin 4)

When clipping occurs at one or more output stages, the
dynamic distortion detector becomes active and pin 4
goes LOW. This information can be used to drive a sound
processor or a DC volume control to attenuate the input
signal and so limit the level of distortion. The output level
of pin 4 is independent of the number of channels that are
being clipped. The clip detection circuit is disabled in a
short-circuit condition, so if a fault condition occurs at the
outputs, pin 4 will remain at a HIGH level. The clip
detection waveforms are illustrated in Fig.3.

2001 Feb 21

Philips Semiconductors

Product specification

2 x 40 W/2

stereo BTL car radio power amplifier with

differential inputs and diagnostic outputs

TDA8566Q

Short-circuit diagnostic (pin 15)

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 the removal of the short-circuit). During this
short-circuit condition, pin 15 is continuously LOW.

When a short-circuit occurs across the load of one or both
channels, the output stages are switched off for
approximately 20 ms. After approximately 50

s the load

condition is again checked to see if the short-circuit is still
present. Due to this duty cycle of 50

s/20 ms the average

current consumption during this short-circuit condition is
very low (approximately 40 mA). During this short-circuit
condition, pin 15 is LOW for 20 ms and HIGH for 50

(see Fig.4). The power dissipation in any short-circuit
condition is very low.

Temperature pre-warning (pin 15)

When the junction temperature (T

) reaches 145

pin 15 will become continuously LOW.

Open-collector outputs

Pins 4 and 15 are open-collector outputs, therefore more
devices can be tied together. Pins 4 and 15 can also be
tied together. An external pull-up resistor is required.

Differential inputs

The input stage is a high-impedance fully differential
balanced input stage that is also capable of operating in a
single-ended mode with one of the inputs capacitively
coupled to an audio ground. It should be noted that if a
source resistance is added (input voltage dividers) the
CMRR degrades to lower values.

handbook, halfpage

Vout

MGD103

Fig.3 Clip detection waveforms.

handbook, full pagewidth

MGA707

short-circuit over the load

20 ms

current

output

stage

V15

Fig.4 Short-circuit diagnostic timing diagram.

2001 Feb 21

Philips Semiconductors

Product specification

2 x 40 W/2

stereo BTL car radio power amplifier

with differential inputs and diagnostic outputs

TDA8566Q

LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).

QUALITY SPECIFICATION

Quality specification in accordance with

"UZW-FQ-611-E", if this type is used as an audio amplifier. The number of the

quality specification can be found in the

"Quality Reference Handbook". The handbook can be ordered using the code

9397 750 00192.

THERMAL CHARACTERISTICS
Thermal characteristics in accordance with (IEC 747-1).

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

supply voltage

operating

non-operating

during 50 ms; load dump
protection t

rise

2.5 ms

OSM

non-repetitive peak output current

ORM

repetitive peak output current

7.5

stg

storage temperature

+150

virtual junction temperature

150

amb

ambient temperature

+85

psc

short-circuit safe voltage

reverse polarity

6.0

tot

total power dissipation

SYMBOL

PARAMETER

CONDITIONS

VALUE

UNIT

th(j-c)

thermal resistance from junction to case

1.3

K/W

th(j-a)

thermal resistance from junction to ambient

in free air

K/W

handbook, halfpage

2.2 K/W

0.2 K/W

2.2 K/W

virtual junction

output 1

output 2

case

MEA861 - 1

Fig.5 Equivalent thermal resistance network.

2001 Feb 21

Philips Semiconductors

Product specification

2 x 40 W/2

stereo BTL car radio power amplifier

with differential inputs and diagnostic outputs

TDA8566Q

DC CHARACTERISTICS
V

= 14.4 V; T

amb

= 25

C; measured in test circuit of Fig.6; unless otherwise specified.

Notes

1. The circuit is DC adjusted at V

= 6 to 18 V and AC operating at V

= 8.5 to 18 V.

2. At V

= 18 to 30 V the DC output voltage

0.5 V

AC CHARACTERISTICS
V

= 14.4 V; T

amb

= 25

C; R

= 2

; f

= 1 kHz; measured in test circuit of Fig.6; unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supply voltage

supply voltage

note 1

14.4

quiescent current

115

180

Operating condition

ms(op)

mode select switch level

8.5

mode select switch current

= 14.4 V

output voltage

note 2

7.0

output offset voltage

100

Mute condition

ms(mute)

mode select switch level

3.3

6.4

output voltage

note 2

7.0

output offset voltage

DELTA output offset voltage

mute/operating

Standby condition

ms(stb)

mode select switch level

stb

standby current

0.1

Diagnostic

diagnostic output voltage

during any fault condition

0.6

temperature pre-warning

= 0.6 V

145

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

out

output power

THD = 0.5%

THD = 10%

THD = 30%

= 13.5 V; THD = 0.5%

= 13.5 V; THD = 10%

THD = 0.5%; R

= 4

THD = 10%; R

= 4

THD = 30%; R

= 4

= 13.5 V; THD = 0.5%;

= 4

= 13.5 V; THD = 10%;

= 4

2001 Feb 21

Philips Semiconductors

Product specification

2 x 40 W/2

stereo BTL car radio power amplifier

with differential inputs and diagnostic outputs

TDA8566Q

Notes

1. Frequency response externally fixed.

2. V

ripple

= V

ripple(max)

= 2 V (p-p); R

= 0

3. Dynamic Distortion Detector (DDD) active; pin 4 is LOW.

4. Common mode rejection ratio measured at the output (over R

) with both inputs tied together;

common

3.5 V (RMS); f = 100 Hz to 10 kHz; R

= 0

5. Common mode rejection ratio measured at the output (over R

) with both inputs tied together;

common

3.5 V (RMS); f = 1 kHz; R

= 45 k

. The mismatch of the input coupling capacitors is excluded.

THD

total harmonic distortion

out

= 1 W

0.1

note 3; V

= 0.6 V

out

= 1 W; R

= 4

0.05

power bandwidth

THD = 0.5%; P

out

1 dB

with respect to 25 W

20 to 20000

low frequency roll off

1 dB; note 1

high frequency roll off

1 dB

kHz

closed loop voltage gain

SVRR

supply voltage ripple
rejection

on; note 2

mute; note 2

standby; note 2

input impedance

differential

100

120

150

single-ended

input impedance mismatch

noise output voltage

on; B = 20 Hz to 20 kHz;
R

= 0

120

on; B = 20 Hz to 20 kHz;
R

= 10 k

100

mute; B = 20 Hz to 20 kHz;
independent of R

channel separation

out

= 25 W; R

= 10 k

channel unbalance

output signal voltage in
mute

= V

i(max)

= 1 V (RMS)

CMRR

common mode rejection
ratio

= 0

; note 4

= 45 k

; note 5

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

2001 Feb 21

Philips Semiconductors

Product specification

2 x 40 W/2

stereo BTL car radio power amplifier with

differential inputs and diagnostic outputs

TDA8566Q

TEST AND APPLICATION INFORMATION

handbook, full pagewidth

Rs/2

Vmode

Rs/2

Vin2

Vin1

10
k

RL2

RL1

220 nF

CLIP

DETECTOR

DIAGNOSTIC

INTERFACE

TDA8566Q

Vref

100

VP =
14.4 V

2200

F/16V

CLIP

DIAG

MGD104

Fig.6 Stereo BTL test diagram.

Application notes

IAGNOSTIC OUTPUT

Special care must be taken in the PCB layout to separate
pin 4 from pins 1, 2, 16 and 17 to minimize the crosstalk
between the CLIP output and the inputs.

ODE SELECT SWITCH

To avoid switch-on plops, it is advisable to keep the
amplifier in the mute mode during

150 ms (charging of

the input capacitors at pins 1, 2, 16 and 17). The circuit in
Fig.7 slowly ramps-up the voltage at the mode select
switch pin when switching on and results in fast muting
when switching off.

handbook, halfpage

100 k

MGD102

10 k

100

mode

select

switch

Vsupply

Fig.7 Mode select switch circuit.

2001 Feb 21

Philips Semiconductors

Product specification

2 x 40 W/2

stereo BTL car radio power amplifier with

differential inputs and diagnostic outputs

TDA8566Q

SOLDERING

Introduction to soldering through-hole mount
packages

This text gives a brief insight to wave, dip and manual
soldering. A more in-depth account of soldering ICs can be
found in our

"Data Handbook IC26; Integrated Circuit

Packages" (document order number 9398 652 90011).

Wave soldering is the preferred method for mounting of
through-hole mount IC packages on a printed-circuit
board.

Soldering by dipping or by solder wave

The maximum permissible temperature of the solder is
260

C; solder at this temperature must not be in contact

with the joints for more than 5 seconds.

The total contact time of successive solder waves must not
exceed 5 seconds.

The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified maximum storage temperature (T

stg(max)

). If the

printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.

Manual soldering

Apply the soldering iron (24 V or less) to the lead(s) of the
package, either below the seating plane or not more than
2 mm above it. If the temperature of the soldering iron bit
is less than 300

C it may remain in contact for up to

10 seconds. If the bit temperature is between
300 and 400

C, contact may be up to 5 seconds.

Suitability of through-hole mount IC packages for dipping and wave soldering methods

Note

1. For SDIP packages, the longitudinal axis must be parallel to the transport direction of the printed-circuit board.

PACKAGE

SOLDERING METHOD

DIPPING

WAVE

DBS, DIP, HDIP, SDIP, SIL

suitable

(1)

2001 Feb 21

Philips Semiconductors

Product specification

2 x 40 W/2

stereo BTL car radio power amplifier with

differential inputs and diagnostic outputs

TDA8566Q

DATA SHEET STATUS

Note

1. Please consult the most recently issued data sheet before initiating or completing a design.

DATA SHEET STATUS

PRODUCT

STATUS

DEFINITIONS

(1)

Objective specification

Development

This data sheet contains the design target or goal specifications for
product development. Specification may change in any manner without
notice.

Preliminary specification

Qualification

This data sheet contains preliminary data, and supplementary data will be
published at a later date. Philips Semiconductors reserves the right to
make changes at any time without notice in order to improve design and
supply the best possible product.

Product specification

Production

This data sheet contains final specifications. Philips Semiconductors
reserves the right to make changes at any time without notice in order to
improve design and supply the best possible product.

DEFINITIONS

Short-form specification

The data in a short-form

specification is extracted from a full data sheet with the
same type number and title. For detailed information see
the relevant data sheet or data handbook.

Limiting values definition

Limiting values given are in

accordance with the Absolute Maximum Rating System
(IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device.
These are stress ratings only and operation of the device
at these or at any other conditions above those given in the
Characteristics sections of the specification is not implied.
Exposure to limiting values for extended periods may
affect device reliability.

Application information

Applications that are

described herein for any of these products are for
illustrative purposes only. Philips Semiconductors make
no representation or warranty that such applications will be
suitable for the specified use without further testing or
modification.

DISCLAIMERS

Life support applications

These products are not

designed for use in life support appliances, devices, or
systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips
Semiconductors customers using or selling these products
for use in such applications do so at their own risk and
agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.

Right to make changes

Philips Semiconductors

reserves the right to make changes, without notice, in the
products, including circuits, standard cells, and/or
software, described or contained herein in order to
improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for
the use of any of these products, conveys no licence or title
under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that
these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified.

SCA

All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.

Internet: http://www.semiconductors.philips.com

2001

Philips Semiconductors a worldwide company

For all other countries apply to: Philips Semiconductors,
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Printed in The Netherlands

753503/05/pp

Date of release:

2001 Feb 21

Document order number:

9397 750 07883

Document Outline

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: TDA8566Q/N1

Document Outline

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: TDA8566Q/N1