Datasheet TEA1024T Datasheet (Philips)

DATA SH EET

Product specification
Supersedes data of 1996 Sep 05
File under Integrated Circuits, IC03

1998 Mar 02

INTEGRATED CIRCUITS

TEA1204T

High efficiency DC/DC converter

1998 Mar 02 2

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

FEATURES

• Fully integrated DC/DC converter circuit

• Up-or-down conversion, each in 2 different modes

• High efficiency (up to 96%) at high loads

• Output power up to 3.6 W (typ.) continuous, 8 W in GSM

burst mode

• Low quiescent power consumption

• Burst mode input for optimal dynamic response to

switching loads

• True current limit for LiIon battery compatibility

• Up to 100% duty cycle in down mode

• Shut-down function

• 8-pin SO package.

APPLICATIONS

• Cellular and cordless phones PDAs and others

• Supply voltage source for low-voltage chip sets

• Portable computers

• Battery backup supplies

• Cameras.

GENERAL DESCRIPTION

The TEA1204T is a fully integrated DC/DC converter
circuit using the minimum amount of external components.
It is intended to be used to supply electronic circuits with
supply voltages of 3.3, 3.6 or 5.0 V from 2, 3 or 4 NiCd cell
batteries or one LiIon battery at an output power level up
to 3.6 W (typ.) continuously, or 8 W in GSM TDMA (1 : 8)
burst mode. Efficient, compact and dynamic power
conversion is achieved using a novel, digitally controlled
Pulse Width and Frequency Modulation (PWFM) like
control concept, integrated low R

dsON

CMOS power
switches with low parasitic capacitances and synchronous
rectification.

ORDERING INFORMATION

TYPE NUMBER

PACKAGE

NAME DESCRIPTION VERSION

TEA1204T SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1

1998 Mar 02 3

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

O(up)

output voltage in up mode U/D = LOW, VSEL = LOW 4.75 5.05 5.35 V

U/D = LOW; VSEL = HIGH 3.13 3.34 3.54 V

V

O(down)

output voltage in down mode U/D = HIGH; VSEL = LOW 3.42 3.64 3.85 V

U/D = HIGH; VSEL = HIGH 3.13 3.34 3.54 V

V

start

start-up voltage up mode 1.6 2.0 2.2 V

Efficiency

η efficiency

from 2.4 to 3.3 V 1 mA < I

L

<1.0A 839095%

from 3.6 to 5.0 V 1 mA < I

L

<1.0A 829094%

from 5.0 to 3.6 V 1 mA < I

L

<1.0A 809295%

from 5.0 to 3.3 V 1 mA < I

L

<1.0A 789094%

Current levels

I

q

quiescent current at pin 3 up mode 50 60 70 µA

I

SHDWN

shut-down current − 210µA

I

limN

current limit NFET up mode 2.38 2.80 3.20 A

I

limP

current limit PFET down mode 2.05 2.40 2.75 A

I

LX(max)

maximum continuous current at
pin 5

−−1.0 A

Power MOSFETS

R

dsON(N)

pin-to-pin resistance NFET 0.08 0.12 0.20 Ω

R

dsON(P)

pin-to-pin resistance PFET 0.10 0.16 0.25 Ω

Timing

f

sw

switching frequency 150 200 240 kHz

t

res

response time from standby to P

max

− 25 −µs

1998 Mar 02 4

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

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BLOCK DIAGRAM

a

ndbook, full pagewidth

MGK923

CONTROL LOGIC

AND

MODE GEARBOX

ROM

START-UP

CIRCUIT

I/V

CONVERTER

I/V

CONVERTER

TIME

COUNTER

BANDGAP

REFERENCE

20 MHz

OSCILLATOR

TEMPERATURE

PROTECTION

DIGITAL CONTROLLER

sense FET

P-type POWER FET

sense

FET

VSEL

GND

BURST SHDWNU/D

N-type

POWER

FET

LX

UPOUT/DNIN

SENSE

TEA1204T

16278

5

3

4

I

IimP

I

IimN

Fig.1 Block diagram.

1998 Mar 02 5

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

PINNING

SYMBOL PIN DESCRIPTION

U/D 1 conversion mode selection input
VSEL 2 output voltage selection input
UPOUT/DNIN 3 up mode; output voltage/

down mode; input voltage
SENSE 4 output voltage sense input
LX 5 inductor connection
GND 6 ground
BURST 7 burst mode trigger input
SHDWN 8 shut-down input

Fig.2 Pin configuration.

handbook, halfpage

MBH564

1
2
3
4

8
7
6
5

U/D SHDWN

VSEL BURST

UPOUT/DNIN GND

SENSE LX

TEA1204T

FUNCTIONAL DESCRIPTION
Control mechanism

The TEA1204T DC/DC converter is able to operate in
discontinuous or continuous conduction operation.
All switching actions are completely determined by a
digital control circuit which uses the output voltage level as
its control input. This novel digital approach enables the
use of a new pulse width and frequency modulation
scheme, which ensures optimum power efficiency over the
complete range of operation of the converter. The scheme
works as follows. At low output power, a very small current
pulse is generated in the inductor, and the pulse rate
varies with a varying load. When the output voltage drops
below a specific limit, which indicates that the converter’s
current capability is not sufficient, the digital controller
switches to the next state of operation. The peak current in
the inductor is made higher, and the pulse rate can again
vary with a varying load. A third operational state is
available for even higher currents.

When high output power is requested, the device starts
operating in continuous conduction mode. This results in
minimum AC currents in the circuit components and hence
optimum efficiency, cost, and EMC. In this mode, the
output voltage is allowed to vary between two predefined
voltage levels. As long as the output voltage stays within
this so-called window, switching continues in a fixed
pattern. When the output voltage reaches one of the
window borders, the digital controller immediately reacts
by adjusting the pulse width and inserting a current step in
such a way that the output voltage stays within the window
with higher or lower current capability. This approach
enables very fast reaction to load variations. Figure 3
shows the various coil current waveforms for low and high
current capability in each power conversion mode.

Figure 4 shows the converter’s response to a sudden load
increase. The upper trace shows the output voltage.
The ripple on top of the DC level is a result of the current
in the output capacitor, which changes in sign twice per
cycle, times the capacitor’s internal Equivalent Series
Resistance (ESR). After each ramp-down of the inductor
current, i.e. when the ESR effect increases the output
voltage, the converter determines what to do in the next
cycle. As soon as more load current is taken from the
output the output voltage starts to decay. When the output
voltage becomes lower than the low limit of the window, a
corrective action is taken by a ramp-up of the inductor
current during a much longer time. As a result, the DC
current level is increased and normal continuous
conduction mode can continue. The output voltage
(including ESR effect) is again within the predefined
window.

Figure 5 depicts the spread of the output voltage window.
The absolute value is most dependent on spread, while the
actual window size is not affected. For one specific device,
the output voltage will not vary more than 4%.

Start-up

A possible deadlock situation in boost configuration can
occur after a sequence of disconnecting and reconnecting
the input voltage source. If, after disconnection of the input
source, the output voltage falls below 2.0 V, the device
may not restart properly after reconnection of the input
source, and may take continuous current from the input.

An external circuit to prevent the deadlock situation is
shown in Chapter “Application information”.

1998 Mar 02 6

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

Burst mode trigger input

For burst-mode applications, in which the required output
power periodically changes between two different power
levels, the burst mode trigger feature gains optimal
dynamic response. A digital signal indicating the load
change must be connected to the burst pin. Polarity of the
burst signal is arbitrary. When not used, the burst pin must
be tied to pin 3 or pin 6.

Shut-down

When the shut-down pin is made HIGH, the converter
disables both switches and power consumption is reduced
to a few µA.

Power switches

The power switches in the IC are one N-type and one
P-type MOSFET, having a typical pin-to-pin resistance of

0.12 Ω and 0.16 Ω respectively. The maximum average
current in the switches is 1.0 A.

Temperature protection

At too high device temperature (typical 165 °C), the
converter stops operating. It resumes operation when the
device temperature falls below 165 °C again. As a result,
low-frequent cycling between on and off state will occur.
It should be noted that in the event of device temperatures
around the cut-off limit, the application differs strongly from
maximum specifications.

Current limiters

If the current in one of the power switches exceeds its limit,
current ramping is stopped immediately, and the next
switching phase is entered. Current limitation is required to
enable optimal use of energy in Lithium-Ion batteries, and
to keep power conversion efficient during temporary high
loads. Furthermore, current limitation protects the IC
against overload conditions, inductor saturation, etc.

Behaviour at input voltage exceeding the specified
range

In general, an input voltage exceeding the specified range
is not recommended since instability may occur. There are
two exceptions:

• Upconversion: at an input voltage equal to or higher than
the target output voltage, but up to 6 V, the converter will
stop switching and the external schottky diode will take
over, resulting in V

o

equalling Vi minus the diode voltage

drop.

• Downconversion: when the input voltage is equal to or
lower than the target output voltage, but higher than

2.6 V, the P-type FET will stay conducting resulting in V

o

being equal to Vi minus some resistive voltage drop.
The current limit function remains active.

Fig.3 Coil current waveforms in the various power

modes.

handbook, halfpage

time

low power
mode

medium power
mode 1

medium power
mode 2

low DC current

high DC current

increasing

load

MGK924

1998 Mar 02 7

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

Fig.4 Response to load increase.

ndbook, full pagewidth

MGK925

start corrective action

load increase

high window limit

low window limit

V

o

I

L

time

time

Fig.5 Output voltage window at typical, maximum and minimum specification.

handbook, full pagewidth

MGK926

maximum positive spread

maximum negative spreadtypical situation

lower specification limit

upper specification limit

+3%

+3%

−3%

4%

4%

4%

V

h

V

l

V

h

−3%
V

l

V

h

V

l

5.35

5.15

4.95

4.75

V

o

1998 Mar 02 8

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

LIMITING VALUES

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

Note

1. Human body model: equivalent to discharging a 100 pF capacitor through a 1.5 kΩ series resistor.

THERMAL CHARACTERISTICS

QUALITY SPECIFICATION

In accordance with

“SNW-FQ-611 part E”

. The numbers of the quality specification can be found in the

“Quality

Reference Handbook”

. The handbook can be ordered using the code 9397 750 00192.

CHARACTERISTICS

T

j

= −20 to +80 °C; all voltages with respect to ground; positive currents flow into the IC; unless otherwise specified.

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

n

voltage on any pin shut-down mode −0.2 +6.5 V

operational mode −0.2 +5.9 V

T

j

junction temperature −25 +150 °C

T

amb

operating ambient temperature −40 +80 °C

T

stg

storage temperature −65 +125 °C

V

es

electrostatic handling note 1 −3000 +3000 V

SYMBOL PARAMETER CONDITIONS VALUE UNIT

R

th(j-a)

thermal resistance from junction to ambient in free air 150 K/W

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supplies

V

O(up)

output voltage in up mode U/D = LOW, VSEL = LOW 4.75 5.05 5.35 V

U/D = LOW; VSEL = HIGH 3.13 3.34 3.54 V

V

O(down)

output voltage in down mode U/D = HIGH; VSEL = LOW 3.42 3.64 3.85 V

U/D = HIGH; VSEL = HIGH 3.13 3.34 3.54 V

V

start

start-up voltage up mode 1.6 2.0 2.2 V

Efficiency

η efficiency

from 2.4 to 3.3 V 1 mA < I

L

<1.0A 839095%

from 3.6 to 5.0 V 1 mA < I

L

<1.0A 829094%

from 5.0 to 3.6 V 1 mA < I

L

<1.0A 809295%

from 5.0 to 3.3 V 1 mA < I

L

<1.0A 789094%

1998 Mar 02 9

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

Notes

1. The average inductor current during current limit also depends on inductance value and resistive losses in all
components in the power path. In normal applications, the average current will be limited to 2.3 A (typ.), with limits
scaled down to minimum 2.07 A and maximum 2.53 A.

2. V3 is the voltage at pin 3 (UPOUT/DNIN).

3. If the applied high level is less than V3− 1 V, the quiescent current level of the device will increase. The maximum
increase is 300 µA in the event that pin 2 is at 2.0 V.

Current levels

I

q

quiescent current at pin 3 up mode 50 60 70 µA

I

SHDWN

shut-down current − 210µA

I

limN

current limit NFET up mode; note 1 2.38 2.80 3.20 A

I

limP

current limit PFET down mode; note 1 2.05 2.40 2.75 A

I

LX(max)

maximum continuous current
at pin 5

−−1.0 A

Power MOSFETS

R

dsON(N)

pin-to-pin resistance NFET 0.08 0.12 0.20 Ω

R

dsON(P)

pin-to-pin resistance PFET 0.10 0.16 0.25 Ω

Timing

f

sw

switching frequency 150 200 240 kHz

t

res

response time from standby to
P

max

− 25 −µs

T emperature

T

amb

operating ambient temperature −20 +25 +80 °C

T

max

internal cut-off temperature 150 165 180 °C

Digital levels

V

lL

LOW-level input voltage pins
1, 2, 7 and 8

0 − 0.4 V

V

IH

HIGH-level input voltage pin 1 note 2 V3− 0.4 − V3+ 0.3 V

V

IH

HIGH-level input voltage pin 2 notes 2 and 3 2.0 − V3+ 0.3 V

V

IH

HIGH-level input voltage
pins 7 and 8

notes 2 and 3 2.9 − V3+ 0.3 V

Sense pin resistance

R

SENSE

SENSE pin resistance to GND up or down to 3.3 V mode 437.2 546.5 655.8 kΩ

down to 3.6 V mode 476.8 596.0 715.2 kΩ
up to 5.0 V mode 662.2 827.8 993.4 kΩ

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

1998 Mar 02 10

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

APPLICATION INFORMATION

Fig.6 Complete application for upconversion.

handbook, full pagewidth

MGK928

C1

L1

C2

D1

SENSE

UPOUT/DNIN

V

O

TEA1204T

LX

GND U/D VSEL BURST SHDWN

V

I

Fig.7 Complete application for downconversion.

handbook, full pagewidth

GND U/D VSEL BURST SHDWN

MGK929

C1

C2

D1

LX

SENSE

L1

V

O

TEA1204T

UPOUT/DNIN

V

I

1998 Mar 02 11

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

A typical component choice for an upconverter from
3 NiCd cells or one LiIon cell to 5.0 V in a GSM handset
(peak power 7.5 W, peak current 2.7 A) is:

• L1; L = 10 µH; I

sat

>2.3 A; low DC resistance, e.g.

Coilcraft DO3308-103

• C1; C = 100 µF; low ESR capacitor; necessity depends

on type of input voltage source

• C2; C = 330 µF; ESR = 0.1 Ω; e.g. Sprague 595D series

• D1; medium power Schottky diode; e.g. Philips

PRLL5819.

For lower power applications, the I

sat

and RDC values of
the inductor can be scaled back by the scaling factor of the
output current from the values above. The same holds for
the ESR value of the output capacitor. A further
improvement is increase of inductance and decrease of
output capacitance.

An additional circuit to prevent start-up deadlock in
upconversion is shown in Fig.8. The function of TR1, R1
and R2 is to put the converter into shut-down mode when
the input source is suddenly disconnected. The circuit
operates as follows. When VI is present, TR1 conducts
and the SHDWN pin is kept LOW. As soon as VI falls below
1 V, TR1 no longer conducts and the device is put into
shut-down before VO falls below 2 V. In the event that a
signal is available which indicates the presence of the
input voltage source, this signal should be applied to the
SHDWN pin. TR1, R1 and R2 should be omitted in that
case.

More application information can be found in the
associated application note.

Fig.8 External deadlock prevention circuit.

handbook, halfpage

MGK930

SHDWN

TR1

R1
1 MΩ

R2

2.7 MΩ

V

O

V

I

1998 Mar 02 12

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

Fig.9 Efficiency as a function of load current (2.4 to 3.3 V).

Using a Coilcraft DO3316P 10 µH inductor and a Sprague 595D 330 µF capacitor.
The dashed line represents the Pulse Frequency Modulation (PFM) and the full line the Pulse Width Modulation (PWM).

handbook, full pagewidth

40

100

MGM601

50

60

70

90

80

10

−1

110 10

3

10

2

IL (mA)

efficiency

(%)

Fig.10 Efficiency as a function of load current (3.6 to 5.0 V).

Using a Coilcraft DO3316P 10 µH inductor and a Sprague 595D 330 µF capacitor.
The dashed line represents the Pulse Frequency Modulation (PFM) and the full line the Pulse Width Modulation (PWM).

handbook, full pagewidth

40

100

MGM602

50

60

70

90

80

10

−1

110 10

3

10

2

IL (mA)

efficiency

(%)

1998 Mar 02 13

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

Fig.11 Efficiency as a function of load current (5.0 to 3.3 V).

Using a Coilcraft DO3316P 10 µH inductor and a Sprague 595D 330 µF capacitor.
The dashed line represents the Pulse Frequency Modulation (PFM) and the full line the Pulse Width Modulation (PWM).

handbook, full pagewidth

40

100

MGM603

50

60

70

90

80

10

−1

110 10

3

10

2

IL (mA)

efficiency

(%)

Fig.12 Efficiency as a function of load current (5.0 to 3.6 V).

Using a Coilcraft DO3316P 10 µH inductor and a Sprague 595D 330 µF capacitor.
The dashed line represents the Pulse Frequency Modulation (PFM) and the full line the Pulse Width Modulation (PWM).

handbook, full pagewidth

40

100

MGM604

50

60

70

90

80

10

−1

110 10

3

10

2

IL (mA)

efficiency

(%)

1998 Mar 02 14

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

PACKAGE OUTLINE

UNIT

A

max.

A

1

A

2

A3b

p

cD

(1)E(2)

(1)

eHELLpQZywv θ

REFERENCES

OUTLINE
VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC JEDEC EIAJ

mm

inches

1.75

0.25

0.10

1.45

1.25

0.25

0.49

0.36

0.25

0.19

5.0

4.8

4.0

3.8

1.27

6.2

5.8

1.05

0.7

0.6

0.7

0.3

8
0

o
o

0.25 0.10.25

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

Notes

1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.

2. Plastic or metal protrusions of 0.25 mm maximum per side are not included.

1.0

0.4

SOT96-1

X

w M

θ

A

A

1

A

2

b

p

D

H

E

L

p

Q

detail X

E

Z

e

c

L

v M

A

(A )

3

A

4

5

pin 1 index

1

8

y

076E03S MS-012AA

0.069

0.010

0.004

0.057

0.049

0.01

0.019

0.014

0.0100

0.0075

0.20

0.19

0.16

0.15

0.050

0.244

0.228

0.028

0.024

0.028

0.012

0.010.010.041 0.004

0.039

0.016

0 2.5 5 mm

scale

SO8: plastic small outline package; 8 leads; body width 3.9 mm

SOT96-1

95-02-04
97-05-22

1998 Mar 02 15

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

SOLDERING
Introduction

There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.

This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our

“IC Package Databook”

(order code 9398 652 90011).

Reflow soldering

Reflow soldering techniques are suitable for all SO
packages.

Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.

Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250 °C.

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

Wave soldering

Wave soldering techniques can be used for all SO
packages if the following conditions are observed:

• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave) soldering
technique should be used.

• The longitudinal axis of the package footprint must be
parallel to the solder flow.

• The package footprint must incorporate solder thieves at
the downstream end.

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

Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
6 seconds. Typical dwell time is 4 seconds at 250 °C.

A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.

Repairing soldered joints

Fix the component by first soldering two diagonally­opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.

1998 Mar 02 16

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

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.

1998 Mar 02 17

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

NOTES

1998 Mar 02 18

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

NOTES

1998 Mar 02 19

Philips Semiconductors Product specification

High efficiency DC/DC converter TEA1204T

NOTES

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

Philips Semiconductors – a worldwide company

© Philips Electronics N.V. 1998 SCA57
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.

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Tel. [phone], Fax. [phone]

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Tel. [phone], Fax. [phone]

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Metro MANILA, Tel. [phone], Fax. [phone]

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Romania: see Italy
Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW,

Tel. [phone], Fax. [phone]
Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231,

Tel. [phone], Fax. [phone]

Slovakia: see Austria
Slovenia: see Italy
South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale,

2092 JOHANNESBURG, P.O. Box 7430 Johannesburg 2000,
Tel. [phone], Fax. [phone]

South America: Al. Vicente Pinzon, 173, 6th floor,
04547-130 SÃO PAULO, SP, Brazil,
Tel. [phone], Fax. [phone]

Spain: Balmes 22, 08007 BARCELONA,
Tel. [phone], Fax. [phone]

Sweden: Kottbygatan 7, Akalla, S-16485 STOCKHOLM,
Tel. [phone], Fax. [phone]

Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH,
Tel. [phone], Fax. [phone]

Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1,
TAIPEI, Taiwan Tel. [phone], Fax. [phone]

Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,
209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260,
Tel. [phone], Fax. [phone]

Turkey: Talatpasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL,
Tel. [phone], Fax. [phone]

Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7,
252042 KIEV, Tel. [phone], Fax. [phone]

United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes,
MIDDLESEX UB3 5BX, Tel. [phone], Fax. [phone]

United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,
Tel. [phone]

Uruguay: see South America
Vietnam: see Singapore
Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,

Tel. [phone], Fax.[phone]

For all other countries apply to: Philips Semiconductors,
International Marketing & Sales Communications, Building BE-p, P.O. Box 218,
5600 MD EINDHOVEN, The Netherlands, Fax. [phone]

Argentina: see South America
Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113,

Tel. [phone], Fax. [phone]
Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213, Tel. [phone],

Fax. [phone]
Belarus: Hotel Minsk Business Center, Bld. 3, r. 1211, Volodarski Str. 6,

220050 MINSK, Tel. [phone], Fax. [phone]

Belgium: see The Netherlands
Brazil: seeSouth America
Bulgaria: Philips Bulgaria Ltd., Energoproject, 15thfloor,

51 James Bourchier Blvd., 1407 SOFIA,
Tel. [phone], Fax. [phone]

Canada: PHILIPS SEMICONDUCTORS/COMPONENTS,
Tel. [phone]

China/Hong Kong: 501 Hong Kong Industrial Technology Centre,
72 Tat Chee Avenue, Kowloon Tong, HONG KONG,
Tel. [phone], Fax. [phone]

Colombia: see South America
Czech Republic: see Austria
Denmark: Prags Boulevard 80, PB 1919, DK-2300 COPENHAGEN S,

Tel. [phone], Fax. [phone]
Finland: Sinikalliontie 3, FIN-02630 ESPOO,

Tel. [phone], Fax. [phone]
France: 51 Rue Carnot, BP317, 92156 SURESNES Cedex,

Tel. [phone], Fax. [phone]
Germany: Hammerbrookstraße 69, D-20097 HAMBURG,

Tel. [phone], Fax. [phone]
Greece: No. 15, 25th March Street, GR 17778 TAVROS/ATHENS,

Tel. [phone], Fax. [phone]

Hungary: seeAustria
India: Philips INDIA Ltd, Band Box Building, 2nd floor,

254-D, Dr. Annie Besant Road, Worli, MUMBAI 400 025,
Tel. [phone], Fax. [phone]

Indonesia: see Singapore
Ireland: Newstead, Clonskeagh, DUBLIN 14,

Tel. [phone], Fax. [phone]
Israel: RAPAC Electronics, 7 Kehilat Saloniki St, PO Box 18053,

TEL AVIV 61180, Tel. [phone], Fax. [phone]
Italy: PHILIPS SEMICONDUCTORS, Piazza IV Novembre 3,

20124 MILANO, Tel. [phone], Fax. [phone]
Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku, TOKYO 108,

Tel. [phone], Fax. [phone]
Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL,

Tel. [phone], Fax. [phone]
Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR,

Tel. [phone], Fax. [phone]
Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905,

Tel. [phone]
Middle East: see Italy

Printed in The Netherlands 415102/1200/02/pp20 Date of release: 1998 Mar 02 Document order number: 9397 750 02734