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INTEGRATED CIRCUITS
DATA SHEET
TDA8571J 4 x 40 W BTL quad car radio power amplifier
Product specification Supersedes data of 1998 Mar 13 2002 Mar 05
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
FEATURES * Requires very few external components * High output power * Low output offset voltage * 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 safe to ground and to VP and across the load * 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 * Pin compatible with the TDA8568Q, except for the gain. QUICK REFERENCE DATA SYMBOL VP IORM Iq(tot) Istb Isw Zi Po(EIAJ) SVRR cs Gv(cl) Vn(o) VOS VOS PARAMETER operating supply voltage repetitive peak output current total quiescent current standby current switch-on current input impedance EIAJ output power supply voltage ripple rejection channel separation closed-loop voltage gain noise output voltage DC output offset voltage delta DC output offset voltage Rs = 0 MUTE ON MUTE THD = maximum Rs = 0 Rs = 10 k CONDITIONS MIN. 6 - - - - 25 - - - 33 - - - TYP. 14.4 - 200 0.2 - 30 40 50 50 34 - - - GENERAL DESCRIPTION
TDA8571J
The TDA8571J is a integrated class-B output amplifier contained in a 23-lead Single-In-Line (SIL) plastic power package. It contains four amplifiers in a BTL configuration, each with a gain of 34 dB. The output power is 4 x 40 W (EIAJ) into a 4 load. APPLICATIONS * Primarily developed for car radio applications.
MAX. 18 7.5 - 100 80 - - - - 35 170 80 80
UNIT V A mA A A k W dB dB dB V mV mV
ORDERING INFORMATION TYPE NUMBER TDA8571J 2002 Mar 05 PACKAGE NAME DBS23P DESCRIPTION plastic DIL-bent-SIL power package; 23 leads (straight lead length 3.2 mm) 2 VERSION SOT411-1
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
BLOCK DIAGRAM
TDA8571J
handbook, full pagewidth
MODE 15 10
VP1 1
VP2 8
VP3 16
VP4 23
IN1
+ -
30 k
2
OUT1+
+ -
Vref
4
OUT1-
IN2
11
+ -
30 k
7
OUT2+
+
12
5
-
OUT2-
SGND
TDA8571J
IN3 13
DIAGNOSTIC
9
VDIAG
+ -
30 k
17
OUT3+
+ -
Vref
19
OUT3-
IN4
14
+ -
30 k
22
OUT4+
+ -
3 PGND1 6 PGND2 18 PGND3 21 PGND4
20
OUT4-
MGM562
Fig.1 Block diagram.
2002 Mar 05
3
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
PINNING SYMBOL VP1 OUT1+ PGND1 OUT1- OUT2- PGND2 OUT2+ VP2 VDIAG IN1 IN2 SGND IN3 IN4 MODE VP3 OUT3+ PGND3 OUT3- OUT4- PGND4 OUT4+ VP4 PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 DESCRIPTION supply voltage 1 output 1+ power ground 1 output 1- output 2- power ground 2 output 2+ supply voltage 2 diagnostic output input 1 input 2 signal ground input 3 input 4 mode select switch input supply voltage 3 output 3+ power ground 3 output 3- output 4- power ground 4 output 4+ supply voltage 4
OUT4- 20 PGND4 21 OUT4+ 22 VP4 23
MGM563
TDA8571J
handbook, halfpage
VP1 OUT1+ PGND1 OUT1- OUT2- PGND2 OUT2+ VP2 VDIAG
1 2 3 4 5 6 7 8 9
IN1 10 IN2 11 SGND 12 IN3 13 IN4 14 MODE 15 VP3 16 OUT3+ 17 PGND3 18 OUT3- 19
TDA8571J
Fig.2 Pin configuration.
2002 Mar 05
4
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
FUNCTIONAL DESCRIPTION The TDA8571J contains four identical amplifiers which can be used for bridge applications. The gain of each amplifier is fixed at 34 dB. Mode select switch (pin MODE) * Standby: low supply current (<100 A) * Mute: input signal suppressed * Operating: normal on condition. Since this pin has a low input current (<80 A), a low cost supply switch can be applied. To avoid switch-on plops, it is advised to keep the amplifier in the mute mode during 150 ms (charging of the input capacitors at pins IN1, IN2, IN3 and IN4. When switching from standby to mute, the slope should be at least 18 V/s. This can be realized by: * Microprocessor control * External timing circuit (see Fig.3). Diagnostic output (pin VDIAG) DYNAMIC DISTORTION DETECTOR (DDD) At the onset of clipping of one or more output stages, the dynamic distortion detector becomes active and pin VDIAG goes LOW. This information can be used to drive a sound processor or DC volume control to attenuate the input signal and so limit the distortion. The output level of pin VDIAG is independent of the number of channels that are clipping (see Fig.4). SHORT-CIRCUIT DIAGNOSTIC
TDA8571J
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 10 ms after removal of the short-circuit. During this short-circuit condition, pin VDIAG is continuously LOW. When a short-circuit occurs across the load of one or more channels, the output stages are switched off during approximately 10 ms. After that time it is checked during approximately 50 s to determine whether the short-circuit is still present. Due to this duty cycle of 50 s/10 ms the average current consumption during this short-circuit condition is very low. During this short-circuit condition, pin VDIAG is LOW for 10 ms and HIGH for 50 s (see Fig.5). The protection circuits of all channels are coupled. This means that if a short-circuit condition occurs in one of the channels, all channels are switched off. Consequently, the power dissipation in any short-circuit condition is very low. TEMPERATURE PRE-WARNING When the virtual junction temperature Tvj reaches 145 C, pin VDIAG goes LOW. OPEN-COLLECTOR OUTPUTS The diagnostic pin has an open-collector output, so more devices can be tied together. An external pull-up resistor is needed.
handbook, halfpage Vo handbook, halfpage P
MGG155
+V
10 k MODE
0
47 F BZX79C/3.9V
MGD959
V9 VP 0
t
Fig.3 Mode select switch circuitry.
Fig.4 Distortion detector waveform.
2002 Mar 05
5
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
TDA8571J
handbook, full pagewidthshort
circuit current
MGG156
short-circuit over the load V9 VP 10 ms
t
t 50 s
Fig.5 Short-circuit waveform.
2002 Mar 05
6
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). SYMBOL VP PARAMETER supply voltage CONDITIONS operating non-operating load dump protection; during 50 ms; tr 2.5 ms Vsc(safe) Vrp IOSM IORM Ptot Tstg Tamb Tvj short-circuit safe voltage reverse polarity voltage non-repetitive peak output current repetitive peak output current total power dissipation storage temperature ambient temperature virtual junction temperature - - - - - - - - -55 -40 - MIN. 18 30 45 18 6 10 7.5 60 +150 +85 150
TDA8571J
MAX. V V V V V A A W C C C
UNIT
THERMAL CHARACTERISTICS SYMBOL Rth j-a Rth j-c PARAMETER thermal resistance from junction to ambient in free air thermal resistance from junction to case (see Fig.6) VALUE 40 1 UNIT K/W K/W
handbook, halfpage
virtual junction OUT2 OUT3 OUT4
OUT1
3.2 K/W
3.2 K/W
3.2 K/W
3.2 K/W
0.2 K/W
case
MGG157
Fig.6 Equivalent thermal resistance network.
2002 Mar 05
7
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
QUALITY SPECIFICATION In accordance with "General Quality Specification For Integrated Circuits (SNW-FQ-611D)". DC CHARACTERISTICS VP = 14.4 V; Tamb = 25 C; measured in Fig.7; unless otherwise specified. SYMBOL Supply VP Iq(tot) VMODE IMODE VO VMODE VO VOS VOS VMODE Istb Diagnostic VDIAG Tvj Notes 1. The circuit is DC adjusted at VP = 6 to 18 V and AC operating at VP = 8.5 to 18 V. 2. At 18 V < VP < 30 V the DC output voltage 12VP. diagnostic output voltage temperature pre-warning during any fault condition VDIAG = 0.6 V - - - 145 supply voltage quiescent current note 1 RL = 6 - 8.5 VMODE = 14.4 V note 2 - - 3.3 note 2 MUTE ON MUTE - - - 0 - 14.4 200 - 30 7.0 - 7.0 - - - 0.2 PARAMETER CONDITIONS MIN.
TDA8571J
TYP.
MAX.
UNIT
18 360
V mA
Operating condition mode select switch level mode select switch current output voltage Vp 80 - 6.4 - 80 80 V A V
Mute condition mode select switch level output voltage DC output offset voltage delta DC output offset voltage V V mV mV
Standby condition mode select switch level standby current 2 100 V A V C
0.6 -
2002 Mar 05
8
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
AC CHARACTERISTICS VP = 14.4 V; RL = 4 ; f = 1 kHz; Tamb = 25 C; measured in Fig.7; unless otherwise specified. SYMBOL Po PARAMETER output power CONDITIONS THD = 0.5% THD = 10% VP = 13.7 V; THD = 0.5% VP = 13.7 V; THD = 10% Po(EIAJ) Po(max) THD Bp fro(l) fro(h) Gv(cl) SVRR EIAJ output power maximum output power total harmonic distortion power bandwidth low frequency roll-off high frequency roll-off closed-loop voltage gain supply voltage ripple rejection Rs = 0 ; maximum ripple Vripple = 2 V (p-p) on mute standby Zi Vn(o) input impedance noise output voltage B = 20 Hz to 20 kHz on; Rs = 0 on; Rs = 10 k mute; independent of Rs cs Gv Vo Notes 1. Dynamic Distortion Detector (DDD) active, pin VDIAG is set to LOW level. 2. Frequency response externally fixed. channel separation channel unbalance output signal in mute maximum input voltage Vi = 1 V (RMS) Po = 16 W; Rs = 10 k - - - 45 - - 125 150 100 - - - 40 50 80 25 - - - 30 MIN. 16 21 - - TYP. 19 26 17.5 23 40 45 0.1 10 20 to 20000 25 - 34
TDA8571J
MAX. - - - - - - - - - - - 35
UNIT W W W W W W % % Hz Hz kHz dB
THD = maximum; Vi = 2 V (p-p) 35 square wave THD = maximum; VP = 15.2 V; Vi = 2 V (p-p) square wave Po = 1 W VMODE = 0.6 V; note 1 THD = 0.5%; Po = -1 dB with respect to 16 W at -1 dB; note 2 at -1 dB 40 - - - - 20 33
- - - 38 170 - - - 1 2
dB dB dB k V V V dB dB mV
2002 Mar 05
9
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
TEST AND APPLICATION INFORMATION
TDA8571J
handbook, full pagewidth
VP MODE VP1 15 IN1 470 nF 30 k 10 1 VP2 8 VP3 16 VP4 23 100 nF
+14.4 V 2200 F
input 1
+ -
2
OUT1+ RL = 4
+ -
Vref
4
OUT1-
input 2 470 nF
IN2
11
+ -
30 k
7
OUT2+ RL = 4
+
SGND 12
5
OUT2- 10 k +VP diagnostic output
- TDA8571J
DIAGNOSTIC 9 VDIAG
input 3 470 nF
IN3
13
+ -
30 k
17
OUT3+ RL = 4
+ -
Vref
19
OUT3-
input 4 470 nF
IN4
14
+ -
30 k
22
OUT4+ RL = 4
+ -
3 PGND1 6 PGND2 18 PGND3 21
20
OUT4-
PGND4
power ground (substrate)
MGM564
Special care must be taken in the PCB-layout to separate pin VDIAG from the pins IN1, IN2, IN3 and IN4 to minimize the crosstalk between the clip output and the inputs. To avoid switch-on plops, it is advised to keep the amplifier in the mute mode during a period of 150 ms (charging the input capacitors at pins IN1, IN2, IN3 and IN4).
Fig.7 Application circuit diagram.
2002 Mar 05
10
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
Test information
TDA8571J
Figures 8 to 13 have the following conditions: VP = 14.4 V; RL = 4 ; f = 1 kHz; 80 kHz filter used; unless otherwise specified.
handbook, halfpage
300
MGM566
handbook, halfpage
80
MGM567
IP (mA) 200
Po (W) 60
40
(1)
100 20
(2)
(3)
0 0 4 8 12 16 VP (V) 20
0 8 10 12 14 16 VP (V) 18
(1) EIAJ; 100 Hz. (2) THD + N = 10%. (3) THD + N = 0.5%.
Fig.8 IP as a function of VP.
Fig.9 Po as a function of VP.
handbook, halfpage
10
MGM568
handbook, halfpage
10
MGM569
THD + N (%) 1
THD + N (%) 1
(1) (1) (2)
10-1
(2) (3)
10-1
10-2 10-2
10-1
1
10
Po (W)
102
10-2 10
102
103
104
f (Hz)
105
(1) f = 10 kHz. (2) f = 1 kHz. (3) f = 100 Hz.
(1) Po = 1 W. (2) Po = 10 W.
Fig.10 THD + N as a function of Po.
Fig.11 THD + N as a function of frequency.
2002 Mar 05
11
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
TDA8571J
handbook, halfpage
-20
MGM570
handbook, halfpage
-30
MGM565
SVRR (dB) -40
cs (dB)
-50
(1)
(2)
-60
-70
-80 10
102
103
104
f (Hz)
105
-90 10
102
103
104
f (Hz)
105
(1) Between channels 1 and 2 or between channels 3 and 4. (2) Between channels 1 or 2 and channels 3 or 4.
Fig.12 SVRR as a function of frequency.
Fig.13 Channel separation as a function of frequency.
2002 Mar 05
12
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
PCB layout
handbook, full pagewidth
TDA8571J
111.76
78.74
Pgnd
2200 F VP
100 nF
- -
out 4
-
out1
+
470 nF 470 nF
+ -
out 3 10 k diag in sgnd in mode
-
out2
+
+
1 Dimensions in mm.
2
3
4
MGK079
Fig.14 PCB layout (component side).
2002 Mar 05
13
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
handbook, full pagewidth
TDA8571J
111.76
78.74
Pgnd
100nF
- -
out 4
2200 F VP
-
out1
+
470 nF 470 nF
+ -
out2
-
out 3
+
+
mode
in
sgnd
in
diag
10 k
4
3
2
1
MGK080
Dimensions in mm.
Fig.15 PCB layout (soldering side).
2002 Mar 05
14
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
PACKAGE OUTLINE DBS23P: plastic DIL-bent-SIL power package; 23 leads (straight lead length 3.2 mm)
TDA8571J
SOT411-1
non-concave x D Dh
Eh
view B: mounting base side A2
d
A5 A4
B j
E2 E
E1
L2 L1 L3
L 1 Z e e1 wM 23
Q m
c e2
vM
bp
0
5 scale
10 mm
DIMENSIONS (mm are the original dimensions) UNIT A 2 mm A4 A5 bp c D (1) d D h E (1) e e1 e2 Eh E1 E2 j L L1 L2 L3 m Q v w x
Z (1)
12.2 4.6 1.15 1.65 0.75 0.55 30.4 28.0 12 2.54 1.27 5.08 11.8 4.3 0.85 1.35 0.60 0.35 29.9 27.5
6 10.15 6.2 1.85 3.6 14.0 10.7 2.4 4.3 2.1 0.6 0.25 0.03 45 1.43 9.85 5.8 1.65 2.8 13.0 9.9 1.6 0.78 1.8
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT411-1 REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION
ISSUE DATE 96-10-11 98-02-20
2002 Mar 05
15
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
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.
TDA8571J
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 (Tstg(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 SOLDERING METHOD PACKAGE DIPPING DBS, DIP, HDIP, SDIP, SIL Note 1. For SDIP packages, the longitudinal axis must be parallel to the transport direction of the printed-circuit board. suitable suitable(1) WAVE
2002 Mar 05
16
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
DATA SHEET STATUS DATA SHEET STATUS(1) Objective data PRODUCT STATUS(2) Development DEFINITIONS
TDA8571J
This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Changes will be communicated according to the Customer Product/Process Change Notification (CPCN) procedure SNW-SQ-650A.
Preliminary data
Qualification
Product data
Production
Notes 1. Please consult the most recently issued data sheet before initiating or completing a design. 2. The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com. 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.
2002 Mar 05
17
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
NOTES
TDA8571J
2002 Mar 05
18
Philips Semiconductors
Product specification
4 x 40 W BTL quad car radio power amplifier
NOTES
TDA8571J
2002 Mar 05
19
Philips Semiconductors - a worldwide company
Contact information For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825 For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com.
(c) Koninklijke Philips Electronics N.V. 2002
SCA74
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.
Printed in The Netherlands
753503/02/pp20
Date of release: 2002
Mar 05
Document order number:
9397 750 09411

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