June 1994

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5142T

FEATURES

Full-wave commutation without position sensors

Built-in start-up circuitry

Six outputs that can drive three external transistor pairs:

output current 0.2 A (typ.)

low saturation voltage

built-in current limiter

Thermal protection

Tacho output without extra sensor

Transconductance amplifier for an external
control transistor

Motor brake facility.

APPLICATIONS

High-power applications e.g.:

high-end hard disk drives

automotive.

GENERAL DESCRIPTION

The TDA5142T is a bipolar integrated circuit used to drive
3-phase brushless DC motors in full-wave mode. The
device is sensorless (saving of 3 hall-sensors) using the
back-EMF sensing technique to sense the rotor position.
It includes a brake function and 6 pre-drivers able to
control FETs or bipolar external transistors. It is ideally
suited for high-power applications such as high-end hard
disk drives, automotive and other applications.

QUICK REFERENCE DATA

Measured over full voltage and temperature range.

Note

1. An unstabilized supply can be used.

ORDERING INFORMATION

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

supply voltage

note 1

VMOT

input voltage to the output
driver stages

driver output voltage

= 100 mA; lower transistor

0.35

= 100 mA; upper transistor

1.05

LIM

current limiting

VMOT

= 14.5 V; R

= 47

150

200

250

TYPE NUMBER

PACKAGE

PINS

PIN POSITION

MATERIAL

CODE

TDA5142T

SOL

plastic

SOT137-1

June 1994

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5142T

BLOCK DIAGRAM

BBBBBBBBBBBB

BBBBBBBBBBBBB

BBBBBBBBB

BBBBBBBBBBBBB

BBBBBBBBBB

BBBBBBBB

BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

BBBBBBBBBBBBBBBBBBBBB

Fig.1 Block diagram.

June 1994

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5142T

PINNING

SYMBOL

PIN

DESCRIPTION

OUT-NB

driver output B for driving the n-channel power FET or power NPN

OUT-PB

driver output B for driving the n-channel power FET or power PNP

GND1

ground (0 V) motor supply return for output stages

OUT-PC

driver output C for driving the n-channel power FET or power PNP

OUT-NC

driver output C for driving the n-channel power FET or power NPN

VMOT

input voltage for the output driver stages

TEST

test input/output

BRAKE

brake input

frequency generator: output of the rotation speed detector stage

GND2

ground supply return for control circuits

supply voltage

CAP-CD

external capacitor connection for adaptive communication delay timing

CAP-DC

external capacitor connection for adaptive communication delay timing copy

CAP-ST

external capacitor connection for start-up oscillator

CAP-TI

external capacitor connection for timing

+AMP IN

non-inverting input of the transconductance amplifier

AMP IN

inverting input of the transconductance amplifier

AMP OUT

transconductance amplifier output (open collector)

COMP-A

comparator input corresponding to output A

COMP-B

comparator input corresponding to output B

COMP-C

comparator input corresponding to output C

MOT0

input from the star point of the motor coils

OUT-NA

driver output A for driving the n-channel power FET or power NPN

OUT-PA

driver output A for driving the n-channel power FET or power PNP

June 1994

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5142T

Fig.2 Pin configuration.

FUNCTIONAL DESCRIPTION

The TDA5142T offers a sensorless three phase motor
drive function. It is unique in its combination of sensorless
motor drive and full-wave drive. The TDA5142T offers
protected outputs capable of driving external power FETs
or bipolar power transistors. It can easily be adapted for
different motors and applications. The TDA5142T offers
the following features:

Sensorless commutation by using the motor EMF.

Built-in start-up circuit.

Optimum commutation, independent of motor type or
motor loading.

Six output drivers.

Maximum output current 0.25 A.

Outputs protected by current limiting and thermal
protection.

Low current consumption.

Accurate frequency generator (FG) by using the
motor EMF.

Brake function.

Uncommitted operational transconductance amplifier
(OTA), with a high output current, for use as a control
amplifier or as a level shifter in a Switched Mode Power
Supply (SMPS) drive.

LIMITING VALUES

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

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

supply voltage

input voltage; all pins except
VMOT

18 V

0.3

+ 0.5

VMOT

VMOT input voltage

output voltage

GND

AMP OUT

OUT-NA, OUT-NB and OUT-NC

VMOT

0.9

OUT-PA, OUT-PB and OUT-PC

0.2

input voltage CAP-ST, CAP-TI,
CAP-CD and CAP-DC

2.5

stg

storage temperature

+150

amb

operating ambient temperature

+70

tot

total power dissipation

see Fig.3

electrostatic handling

see Chapter "Handling"

500

June 1994

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5142T

P tot

(W)

200

MLB777

100

150

T ( C)

amb

Fig.3 Power derating curve.

HANDLING

Every pin withstands the ESD test according to
"MIL-STD-883C class 2". Method 3015 (HBM 1500

100 pF) 3 pulses + and 3 pulses

on each pin referenced

to ground.

CHARACTERISTICS

= 14.5 V; T

amb

= 25

C; unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supply

supply voltage

note 1

supply current

note 2

5.2

6.25

VMOT

input voltage to the output driver
stages

see Fig.1

Thermal protection

local temperature at temperature
sensor causing shut-down

130

140

150

reduction in temperature before
switch-on

after shut-down

COMP-A, COMP-B, COMP-C and MOT0

input voltage

0.5

VMOT

input bias current

0.5 V

VMOT

1.5 V

CSW

comparator switching level

note 3

CSW

variation in comparator switching
levels

hys

comparator input hysteresis

June 1994

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5142T

OUT-NA, OUT-NB, OUT-NC, OUT-PA, OUT-PB and OUT-PC

O-n

n-channel driver output voltage

upper transistor;
I

100 mA

1.05

lower transistor;
I

= 10 mA

0.35

O-p

p-channel driver output voltage

upper transistor;
I

10 mA

1.05

lower transistor;
I

= 100 mA

0.35

variation in saturation voltage
between lower transistors

= 100 mA

180

variation in saturation voltage
between upper transistors

100 mA

180

LIM

current limiting

VMOT

= 14.5 V;

= 47

150

200

250

+AMP IN and

AMP IN

input voltage

0.3

1.7

differential mode voltage without
`latch-up'

input bias current

650

input capacitance

offset

input offset voltage

AMP OUT (open collector)

sink

output sink current

sat

saturation voltage

= 40 mA

1.5

2.1

output voltage

0.5

+18

slew rate

= 330

; C

= 50 pF

mA/

transfer gain

0.3

BRAKE

brake-mode voltage

enable brake mode;
4 V < V

< 18 V

2.3

normal mode;
4 V < V

< 18 V

2.7

input current

brake mode

normal mode

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

June 1994

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5142T

Notes

1. An unstabilized supply can be used.

2. V

VMOT

= V

, all other inputs at 0 V; all outputs at V

; I

= 0 mA.

3. Switching levels with respect to driver outputs OUT-NA, OUT-NB, OUT-NC, OUT-PA, OUT-PB and OUT-PC.

FG (push-pull)

LOW level output voltage

= 1.6 mA

0.4

HIGH level output voltage

0.3

THL

HIGH-to-LOW transition time

= 50 pF; R

= 10 k

0.5

ratio of FG frequency and
commutation frequency

CAP-ST

sink

output sink current

1.5

2.0

2.5

source

output source current

2.5

2.0

1.5

SWL

LOW level switching voltage

0.20

SWH

HIGH level switching voltage

2.20

CAP-TI

sink

output sink current

source

output source current

0.2 V < V

CAP-TI

< 0.3 V

0.3 V < V

CAP-TI

< 2.2 V

SWL

LOW level switching voltage

SWM

MIDDLE level switching voltage

0.30

SWH

HIGH level switching voltage

2.20

CAP-CD

sink

output sink current

10.6

16.2

source

output source current

5.3

8.1

sink

source

ratio of sink to source current

1.85

2.05

2.25

LOW level input voltage

850

875

900

HIGH level input voltage

2.3

2.5

CAP-DC

sink

output sink current

10.1

15.5

20.9

source

output source current

20.9

15.5

10.1

sink

source

ratio of sink to source current

0.9

1.025

1.15

LOW level input voltage

850

875

900

HIGH level input voltage

2.3

2.5

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

June 1994

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5142T

Introduction (see Fig.6)

Full-wave driving of a three phase motor requires three
push-pull output stages. In each of the six possible states
two outputs are active, one sourcing (H) and one sinking
(L). The third output presents a high impedance (Z) to the
motor, which enables measurement of the motor
back-EMF in the corresponding motor coil by the EMF
comparator at each output. The commutation logic is
responsible for control of the output transistors and
selection of the correct EMF comparator. In Table 1 the
sequence of the six possible states of the external
connected output transistors has been depicted and the
corresponding output levels on the NA, PA, NB, PB, NC
and PC outputs of the TDA5142T.

Table 1 Output states.

Note

1. H = HIGH state; L = LOW state; Z = high-impedance OFF-state.

STATE

MOT1

(1)

OUT-
NA

(1)

OUT-

(1)

MOT2

(1)

OUT-
NB

(1)

OUT-

(1)

MOT3

(1)

OUT-
NC

(1)

OUT-

(1)

The zero-crossing in the motor EMF (detected by the
comparator selected by the commutation logic) is used to
calculate the correct moment for the next commutation,
that is, the change to the next output state. The delay is
calculated (depending on the motor loading) by the
adaptive commutation delay block.

The output stages are also protected by a current limiting
circuit and by thermal protection.

The detected zero-crossings are used to provide speed
information. The information has been made available on
the FG output pin. This output provides an output signal
with a frequency equal to the commutation frequency.

The system will only function when the EMF voltage from
the motor is present. Therefore, a start oscillator is
provided that will generate commutation pulses when no
zero-crossings in the motor voltage are available.

A timing function is incorporated into the device for internal
timing and for timing of the reverse rotation detection.

The TDA5142T also contains an uncommitted
transconductance amplifier (OTA) that can be used as a
control amplifier. The output is capable of directly driving
an external power transistor.

The TDA5142T is designed for systems with low current
consumption: use of I

L logic, adaptive base drive for the

output transistors (patented).

Adjustments

The system has been designed in such a way that the
tolerances of the application components are not critical.
However, the approximate values of the following
components must still be determined:

The start capacitor; this determines the frequency of the
start oscillator.

The two capacitors in the adaptive commutation delay
circuit; these are important in determining the optimum
moment for commutation, depending on the type and
loading of the motor.

The timing capacitor; this provides the system with its
timing signals.

HE START CAPACITOR

(CAP-ST)

This capacitor determines the frequency of the start
oscillator. It is charged and discharged, with a current of
2

A, from 0.05 to 2.2 V and back to 0.05 V. The time

taken to complete one cycle is given by:
t

start

= (2.15

C) s (with C in

The start oscillator is reset by a commutation pulse and so
is only active when the system is in the start-up mode. A
pulse from the start oscillator will cause the outputs to
change to the next state (torque in the motor).

June 1994

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5142T

If the movement of the motor generates enough EMF the
TDA5142T will run the motor. If the amount of EMF
generated is insufficient, then the motor will move one step
only and will oscillate in its new position. The amplitude of
the oscillation must decrease sufficiently before the arrival
of the next start pulse, to prevent the pulse arriving during
the wrong phase of the oscillation. The oscillation of the
motor is given by:

where:

= torque constant (N.m/A)

I = current (A)

p = number of magnetic pole-pairs

J = inertia J (kg.m

Example: J = 72

kg.m

, K = 25

N.m/A, p = 6

and I = 0.5 A; this gives f

osc

= 5 Hz. If the damping is high

then a start frequency of 2 Hz can be chosen or
t = 500 ms, thus C = 0.5/2 = 0.25

F (choose 220 nF).

HE ADAPTIVE COMMUTATION DELAY

(CAP-CD

AND

CAP-DC)

In this circuit capacitor CAP-CD is charged during one
commutation period, with an interruption of the charging
current during the diode pulse. During the next
commutation period this capacitor (CAP-CD) is discharged
at twice the charging current. The charging current is
8.1

A and the discharging current 16.2

A; the voltage

range is from 0.9 to 2.2 V. The voltage must stay within
this range at the lowest commutation frequency of
interest, f

(C in nF)

If the frequency is lower, then a constant commutation
delay after the zero-crossing is generated by the discharge
from 2.2 to 0.9 V at 20

maximum delay = (0.076

C) ms (with C in nF)

Example: nominal commutation frequency = 900 Hz and
the lowest usable frequency = 400 Hz; so:

(choose 18 nF)

The other capacitor, CAP-DC, is used to repeat the same
delay by charging and discharging with 15.5

A. The same

value can be chosen as for CAP-CD. Figure 7 illustrates
typical voltage waveforms.

osc

-----------------------

-----------------------------------

8.1

1.3

--------------------------

6231

-------------

CAP-CD

6231

400

-------------

15.6

June 1994

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5142T

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BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

BBBB

BBB

BBBB

BBBBB

BBBB

BBBBB

BBB

BBBB

BBB

BBBB

BBBBBBBBBB

BBBBBBBBB

BBBBBBBBBB

BBBB

BBBBBBBBBBBBBBBBBB

BBBBBBBBBBBBBBBBBBBB

BBBBB

BBBBBB

BBBBB

BBBBBB

BBBBB

BBBBBB

BBBBB

BBBBBB

BBBBB

BBBBBBB

BBBBBB

BBBBBBBB

Fig.6 Typical application of the TDA5142T as a scanner driver, with use of OTA.

June 1994

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5142T

Fig.7 CAP-CD and CAP-DC typical voltage waveforms in normal running mode.

HE TIMING CAPACITOR

(CAP-TI)

Capacitor CAP-TI is used for timing the successive steps
within one commutation period; these steps include some
internal delays.

The most important function is the watchdog time in which
the motor EMF has to recover from a negative diode-pulse
back to a positive EMF voltage (or vice versa). A watchdog
timer is a guarding function that only becomes active when
the expected event does not occur within a predetermined
time.

The EMF usually recovers within a short time if the motor
is running normally (

ms). However, if the motor is

motionless or rotating in the reverse direction, then the
time can be longer (

ms).

A watchdog time must be chosen so that it is long enough
for a motor without EMF (still) and eddy currents that may
stretch the voltage in a motor winding; however, it must be
short enough to detect reverse rotation. If the watchdog

time is made too long, then the motor may run in the wrong
direction (with little torque).

The capacitor is charged, with a current of 57

A, from

0.2 to 0.3 V. Above this level it is charged, with a current of
5

A, up to 2.2 V only if the selected motor EMF remains

in the wrong polarity (watchdog function). At the end, or, if
the motor voltage becomes positive, the capacitor is
discharged with a current of 28

A. The watchdog time is

the time taken to charge the capacitor, with a current of
5

A, from 0.3 to 2.2 V.

To ensure that the internal delays are covered CAP-TI
must have a minimum value of 2 nF. For the watchdog
function a value for CAP-TI of 10 nF is recommended.

To ensure a good start-up and commutation, care must be
taken that no oscillations occur at the trailing edge of the
flyback pulse. Snubber networks at the outputs should be
critically damped.

Typical voltage waveforms are illustrated by Fig.8.

June 1994

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5142T

Fig.8 Typical CAP-TI and V

MOT1

voltage waveforms in normal running mode.

If the chosen value of CAP-TI is too small oscillations can occur in certain positions of a blocked rotor. If the chosen value is too large, then it
is possible that the motor may run in the reverse direction (synchronously with little torque).

Other design aspects

There are other design aspects concerning the application
of the TDA5142T besides the commutation function. They
are:

Generation of the tacho signal FG

General purpose operational transconductance
amplifier (OTA)

Possibilities of motor control

Brake function

Reliability.

SIGNAL

The FG signal is generated in the TDA5142T by using the
zero-crossing of the motor EMF from the three motor
windings and the commutation signal.

Output FG switches from HIGH-to-LOW on all zero
crossings and from LOW-to-HIGH on all commutations.
Output FG can source typically 75

A and sink more

than 3 mA.

Example: a 3-phase motor with 6 magnetic pole-pairs at
1500 rpm and with a full-wave drive has a commutation
frequency of 25

6 = 900 Hz, and generates a tacho

signal of 900 Hz.

PERATIONAL

RANSCONDUCTANCE

MPLIFIER

(OTA)

The OTA is an uncommitted amplifier with a high output
current (40 mA) that can be used as a control amplifier.
The common mode input range includes ground (GND)
and rises to V

1.7 V. The high sink current enables the

OTA to drive a power transistor directly in an analog
control amplifier.

Although the gain is not extremely high (0.3 S), care must
be taken with the stability of the circuit if the OTA is used
as a linear amplifier as no frequency compensation has
been provided.

The convention for the inputs (inverting or not) is the same
as for a normal operational amplifier: with a resistor (as
load) connected from the output (AMP OUT) to the positive
supply, a positive-going voltage is found when the
non-inverting input (+AMP IN) is positive with respect to
the inverting input (

AMP IN). Confusion is possible

because a `plus' input causes less current, and so a
positive voltage.

OTOR

ONTROL

DC motors can be controlled in an analog manner using
the OTA.

For the analog control an external transistor is required.
The OTA can supply the base current for this transistor
and act as a control amplifier (see Fig.6).

June 1994

Philips Semiconductors

Product specification

Brushless DC motor drive circuit

TDA5142T

SOLDERING

Plastic small-outline packages

Y WAVE

During placement and before soldering, the component
must be fixed with a droplet of adhesive. After curing the
adhesive, the component can be soldered. The adhesive
can be applied by screen printing, pin transfer or syringe
dispensing.

Maximum permissible solder temperature is 260

C, and

maximum duration of package immersion in solder bath is
10 s, if allowed to cool to less than 150

C within 6 s.

Typical dwell time is 4 s at 250

A modified wave soldering technique is recommended
using two solder waves (dual-wave), in which a turbulent
wave with high upward pressure is followed by a smooth
laminar wave. Using a mildly-activated flux eliminates the
need for removal of corrosive residues in most
applications.

Y SOLDER PASTE REFLOW

Reflow soldering requires the solder paste (a suspension
of fine solder particles, flux and binding agent) to be

applied to the substrate by screen printing, stencilling or
pressure-syringe dispensing before device placement.

Several techniques exist for reflowing; for example,
thermal conduction by heated belt, infrared, and
vapour-phase reflow. Dwell times vary between 50 and
300 s according to method. Typical reflow temperatures
range from 215 to 250

Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 min at 45

EPAIRING SOLDERED JOINTS

(

BY HAND

HELD SOLDERING

IRON OR PULSE

HEATED SOLDER TOOL

)

Fix the component by first soldering two, diagonally
opposite, end pins. Apply the heating tool to the flat part of
the pin only. Contact time must be limited to 10 s at up to
300

C. When using proper tools, all other pins can be

soldered in one operation within 2 to 5 s at between 270
and 320

C. (Pulse-heated soldering is not recommended

for SO packages.)

For pulse-heated solder tool (resistance) soldering of VSO
packages, solder is applied to the substrate by dipping or
by an extra thick tin/lead plating before package
placement.

DEFINITIONS

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 customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

Data sheet status

Objective specification

This data sheet contains target or goal specifications for product development.

Preliminary specification

This data sheet contains preliminary data; supplementary data may be published later.

Product specification

This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). 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

Where application information is given, it is advisory and does not form part of the specification.

Philips Semiconductors

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Korea: (Republic of) Philips House, 260-199 Itaewon-dong,

Yongsan-ku, SEOUL, Tel. (02)794-5011, Fax. (02)798-8022

Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA,

SELANGOR, Tel. (03)750 5214, Fax. (03)757 4880

Mexico: Philips Components, 5900 Gateway East, Suite 200,

EL PASO, TX 79905, Tel. 9-5(800)234-7381, Fax. (708)296-8556

Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB

Tel. (040)783749, Fax. (040)788399

New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,

Tel. (09)849-4160, Fax. (09)849-7811

Norway: Box 1, Manglerud 0612, OSLO,

Tel. (022)74 8000, Fax. (022)74 8341

Pakistan: Philips Electrical Industries of Pakistan Ltd.,

Exchange Bldg. ST-2/A, Block 9, KDA Scheme 5, Clifton,
KARACHI 75600, Tel. (021)587 4641-49,
Fax. (021)577035/5874546.

Philippines: PHILIPS SEMICONDUCTORS PHILIPPINES Inc,

106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI,
Metro MANILA, Tel. (02)810 0161, Fax. (02)817 3474

Portugal: PHILIPS PORTUGUESA, S.A.,

Rua dr. António Loureiro Borges 5, Arquiparque - Miraflores,
Apartado 300, 2795 LINDA-A-VELHA,
Tel. (01)14163160/4163333, Fax. (01)14163174/4163366.

Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231,

Tel. (65)350 2000, Fax. (65)251 6500

South Africa: S.A. PHILIPS Pty Ltd., Components Division,

195-215 Main Road Martindale, 2092 JOHANNESBURG,
P.O. Box 7430 Johannesburg 2000,
Tel. (011)470-5911, Fax. (011)470-5494.

Spain: Balmes 22, 08007 BARCELONA,

Tel. (03)301 6312, Fax. (03)301 42 43

Sweden: Kottbygatan 7, Akalla. S-164 85 STOCKHOLM,

Tel. (0)8-632 2000, Fax. (0)8-632 2745

Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH,

Tel. (01)488 2211, Fax. (01)481 77 30

Taiwan: PHILIPS TAIWAN Ltd., 23-30F, 66, Chung Hsiao West

Road, Sec. 1. Taipeh, Taiwan ROC, P.O. Box 22978,
TAIPEI 100, Tel. (02)388 7666, Fax. (02)382 4382.

Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,

209/2 Sanpavuth-Bangna Road Prakanong,
Bangkok 10260, THAILAND,
Tel. (662)398-0141, Fax. (662)398-3319.

Turkey: Talatpasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL,

Tel. (0 212)279 2770, Fax. (0212)269 3094

United Kingdom: Philips Semiconductors Limited, P.O. Box 65,

Philips House, Torrington Place, LONDON, WC1E 7HD,
Tel. (071)436 41 44, Fax. (071)323 03 42

United States: INTEGRATED CIRCUITS:

811 East Arques Avenue, SUNNYVALE, CA 94088-3409,
Tel. (800)234-7381, Fax. (708)296-8556
DISCRETE SEMICONDUCTORS: 2001 West Blue Heron Blvd.,

P.O. Box 10330, RIVIERA BEACH, FLORIDA 33404,
Tel. (800)447-3762 and (407)881-3200, Fax. (407)881-3300

Uruguay: Coronel Mora 433, MONTEVIDEO,

Tel. (02)70-4044, Fax. (02)92 0601

For all other countries apply to: Philips Semiconductors,
International Marketing and Sales, Building BAF-1,
P.O. Box 218, 5600 MD, EINDHOVEN, The Netherlands,
Telex 35000 phtcnl, Fax. +31-40-724825

SCD31

All rights are reserved. Reproduction in whole or in part is prohibited without the
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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

373061/1500/02/pp20

Date of release: June 1994

Document order number:

9397 735 80011

Document Outline

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: TDA5142T/C2

Document Outline

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: TDA5142T/C2