Preliminary specification
Supersedes data of 1995 Feb 16
File under Integrated Circuits, IC01
1995 Oct 04
Page 2
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
FEATURES
• One VP state controlled regulator (regulator 2)
• Regulator 2, reset and ignition buffer operates during
load dump and thermal shutdown
• One control pin for switching regulator 1 and the power
switch
• Supply voltage range of −18 to +50 V (operating
from 9.75 V)
• Low reverse current of regulator 2
• Low quiescent current (when regulator 1 is switched off,
standby)
• Ignition input/output
• Reset output
• High ripple rejection
• Power switch.
PROTECTIONS
• Reverse polarity safe (down to −18 V without high
reverse current)
• Able to withstand voltages up to 18 V at the outputs
(supply line may be shortened)
• ESD protected on all pins
• Thermal protection
• Load dump protection
• Foldback current limit protection for regulators 1 and 2
• Delayed second current limit protection for the power
switch
• The regulator outputs and the power switch are DC
short-circuited safe to ground and V
.
P
GENERAL DESCRIPTION
The TDA3603 is a multiple output voltage regulator with a
power switch, intended for use in car radios with or without
a microcontroller.
It contains one fixed voltage regulator with a foldback
current protection (regulator 1) and one fixed voltage
regulator (regulator 2), intended to supply a
microcontroller, that also operates during load dump and
thermal shutdown.
There is a power switch with protections, operated by the
enable input.
The reset and ignition outputs can be used to interface by
the microcontroller. The reset signal can be used to call up
the microcontroller and the ignition output indicates
ignition voltage available.
The supply pin can withstand load dump pulses and
negative supply voltages.
Regulator 2 will be switched on at a supply voltage >6.5 V
and off at a voltage of regulator 2 <1.9 V.
ORDERING INFORMATION
TYPE NUMBER
TDA3603SIL9MPFplastic single in-line medium power package with fin; 9 leadsSOT110-1
TDA3603PHDIP18plastic heat-dissipating dual in-line package; 18 leadsSOT398-1
2. The drop-out voltage of regulator 1 is measured between VPand V
has exceeded 6.5 V.
P
REG1.
3. The drop-out voltage of the power switch is measured between VPand Vsw.
1995 Oct 043
Page 4
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
BLOCK DIAGRAM
handbook, full pagewidth
V
P
(14.4 V)
V
1
4
en
POWER SWITCH
TEMPERATURE
&
PROTECTION
REGULATOR 2
LOAD DUMP
9
7
V
sw
(14.0 V/0.3 A)
REG2
(5 V/30 mA)
&
REGULATOR 1
TDA3603
l(ig)
8
V
IGNITION
BUFFER
6
ground
2
3
5
MBE231
REG1
(9 V/300 mA)
RES
(5 V)
V
O(ig)
Fig.1 Block diagram.
1995 Oct 044
Page 5
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
PINNING
SYMBOL
V
P
SOT110-1
SOT398-1
11supply voltage
DESCRIPTION
REG122regulator 1 output
RES33reset output voltage (+5 V)
PIN
V
V
en
O(ig)
44enable input voltage
55ignition output voltage
GND66ground (0 V)
REG277regulator 2 output
V
I(ig)
V
sw
88ignition input voltage
99power switch output voltage
i.c.−10 to 18can be connected to a heat spreader
handbook, halfpage
V
REG1
RES
V
V
O(ig)
GND
REG2
V
I(ig)
V
sw
1
P
2
3
4
en
5
TDA3603
6
7
8
9
MBE230
handbook, halfpage
V
REG1
RES
V
V
O(ig)
GND
REG2
V
I(ig)
V
P
en
sw
1
2
3
4
5
TDA3603P
6
7
8
9
MBE229
i.c.
18
i.c.
17
16
i.c.
i.c.
15
i.c.
14
i.c.
13
i.c.
12
i.c.
11
i.c.
10
Fig.2 Pin configuration for SOT110-1.
1995 Oct 045
Pins 10 to 18 can be connected to a heat spreader.
Fig.3 Pin configuration for SOT398-1.
Page 6
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
FUNCTIONAL DESCRIPTION
The TDA3603 is a multiple output voltage regulator with a
power switch, intended for use in car radios with or without
a microcontroller. Because of low-voltage operation of the
car radio, low-voltage drop regulators are used.
Regulator 2 will switch on when the supply voltage
exceeds 6.5 V for the first time and will switch off again
when the output voltage of regulator 2 is below 1.9 V (this
is below an engine start). When regulator 2 is switched on
and the output voltage of this regulator is within its voltage
range, the reset output will be enabled (reset will go HIGH
via a pull-up resistor) to generate a reset to the
microcontroller. The reset cycles can be extended by an
external capacitor at the reset output (pin 3). The start-up
feature is built-in to ensure a smooth start-up of the
microcontroller at first connection, without uncontrolled
switching of regulator 2 during the start-up sequence.
When both regulator 2 and the supply voltage (V
are available, regulator 1 and the switch can be operated
by an enable input (pin 4).
> 4.5 V)
P
All output pins are fully protected. The regulators are
protected against load dump (regulator 1 will switch off at
supply voltages higher than 25 V) and short-circuit
(foldback current protection).
The switch contains a current protection which is delayed
for ≥10 ms (in short-circuit condition). During this time the
current is limited to 1.4 A (V
At supply voltages over 16.9 V the switch is clamped at
15.0 V (to avoid externally connected circuitry being
damaged by an overvoltage) and the switch will switch off
at load dump.
Interfacing with the microcontroller can be accomplished
by an ignition Schmitt-trigger and ignition output buffer,
(simple full/semi on/off logic applications).
The total timing of a semi on/off logic set is shown Fig.4.
≤ 18 V).
P
1995 Oct 046
Page 7
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
handbook, full pagewidth
V
P
regulator 2
reset
18.0 V
V
P
enable
regulator 1
regulator 1
ignition
input
ignition
output
6.5 V
5.4 V
4.0 V
5.0 V
1.9 V
0 V
5.0 V
0 V
8.9 V
4.5 V
4.0 V
2.2 V
2.0 V
8.5 V
0 V
5.4 V
2.2 V
2.0 V
5.0 V
0.2 V
load dump
load dump
16.9 V
V
P
4.5 V
4.0 V
2.2 V
enable
power
switch
2.0 V
power
switch
output
0 V
1995 Oct 047
load dump
MBE235
Fig.4 Timing diagram.
Page 8
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
reverse battery voltagenon-operating−−18V
positive pulse voltage at ignition buffer VP= 14.4; RI=1kΩ−50V
negative pulse voltage at ignition buffer VP= 14.4; RI=1kΩ−−100V
storage temperaturenon-operating−55+150°C
operating virtual junction temperature−40+150°C
total power dissipationSOT110-1−10.4W
SOT398-1−tbfW
THERMAL CHARACTERISTICS
SYMBOLTYPE NUMBER PARAMETERVALUE UNIT
R
R
th j-c
th j-p
TDA3603thermal resistance from junction to case12K/W
TDA3603Pthermal resistance from junction to pins15K/W
1995 Oct 048
Page 9
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
CHARACTERISTICS
V
= 14.4 V; Tamb = 25 °C; see Figs 5 and 6; unless otherwise specified.
drop-out voltageIsw= 0.3 A; note 14−0.40.9V
continuous current0.5−−A
clamping voltageVP≥ 16.9 V−15.016.2V
peak currentt ≤ 10 ms1.4−−A
fly back voltage behaviourIsw= −200 mA−− 20V
current limitVP= 14.4 V; Vsw=10V;
0.6−1.0A
note 8
1995 Oct 0410
Page 11
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
Notes to the characteristics
1. Minimum operating voltage, only if VP has exceeded 6.5 V.
2. Enable and ignition inputs are low and regulator 2 is unloaded.
3. Voltage drop due to load condition.
4. The spread on tracking is one sigma value.
5. Ignition output voltage will be less than or equal to the output voltage of regulator 2.
6. I
7. The drop-out voltage of regulator 1 is measured between VP and V
8. At current limit, I
9. The foldback current protection limits the dissipated power at short-circuit (see Figs 5 and 6).
10. The cross talk of regulator 1 is measured with an I
11. I
12. The drop-out voltage of regulator 2 is measured between VP and V
13. The cross talk of regulator 2 is measured with an I
14. The drop-out voltage of the power switch is measured between VP and Vsw.
= 5 mA.
REG1
= 5 mA.
REG2
fi= 100 kHz.
.
REG1
is held constant (behaviour in accordance with the broken line in Fig.5).
REGm
= 0.5 mA up to 30 mA with an input frequency of fi= 100 kHz.
REG2
.
REG2
= 0.5 mA up to 100 mA with an input frequency of
REG1
1995 Oct 0411
Page 12
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
handbook, halfpage
Rx
V
(regulators 1 and 2)
0
V
0
I
sc
I
m
I (regulators 1 and 2)
o
Fig.5 Foldback current protection of the regulators.
MBE233
1995 Oct 0412
handbook, halfpage
1.4
1.4
I
sw
(A)
0.5
10
MBE234
t (ms)
Fig.6 Foldback current protection of the power switch.
Page 13
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
TEST AND APPLICATION INFORMATION
handbook, full pagewidth
V
P
V
en
V
I(ig)
(1) Capacitor not required for stability.
220 nF
R1
1 kΩ
(1)
C1
enable input
ignition input
V
sw
9
V
P
1
4
TDA3603
8
6
ground
regulator 2
7
regulator 1
2
reset
output
3
ignition
output
5
47 kΩ
R2
C2
10 µF
C3
10 µF
C4
10 µF
C5
1 µF
5 V
8.5 V
MBE232
R
L(sw)
1 kΩ
R
L(REG2)
1 kΩ
R
L(REG1)
1 kΩ
Fig.7 Test circuit.
Noise information
The noise at the output of the regulators depends on the
bandwidth of the regulators, which can be adjusted by the
output capacitors. Table 1 shows the noise figures.
Although stability is guaranteed when CL is higher than
10 µF (over temperature range) with tan (φ) = 1 in the
frequency range 1 to 10 kHz, however, for low noise, a
47 µF load capacitor is required.
The noise on the supply line depends on the value of the
supply capacitor and is caused by a current noise (output
noise of the regulators is translated into a current noise by
the output capacitors). When a high frequency capacitor of
220 nF with an electrolytic capacitor of 100 µF in parallel
is placed directly over pins 1 and 6 (supply and ground)
the noise is minimized.
1995 Oct 0413
Table 1 Noise figures
REGULATORNOISE (µV)
tbf10
1
15047
tbf100
tbf220
tbf10
2
10047
tbf100
tbf220
Note
1. Bandwidth of 100 kHz.
(1)
CAPACITOR (µF)
OUTPUT
Page 14
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
PACKAGE OUTLINES
SIL9MPF: plastic single in-line medium power package with fin; 9 leads
D
D
1
q
P
pin 1 index
P
1
q
2
q
1
SOT110-1
A
2
A
3
A
A
4
E
seating plane
19
Z
b
e
2
b
b
1
0510 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
mm
A
18.5
17.8
max.
3.7
2
A
8.7
8.0
A
3
4
15.8
15.4
b
0.67
0.50
b
1
2
1.40
1.14
bcD
1.40
1.14
0.48
0.38
21.8
21.4
(1)
D
1
21.4
20.7
A
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
A
A
UNIT
max.
mm
inches
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
SOT398-1
12
min.
max.
IEC JEDEC EIAJ
b
1.40
1.14
0.06
0.04
b
1
0.67
0.50
0.03
0.02
b
cD E eM
2
0.47
1.05
0.38
0.75
0.02
0.04
0.01
0.03
REFERENCES
21.85
21.35
0.87
0.84
1995 Oct 0415
9
(1)(1)
6.5
6.2
0.26
0.24
L
e
1
M
3.9
8.32
3.1
8.02
0.15
0.33
0.12
0.32
EUROPEAN
PROJECTION
E
0.34
0.30
H
8.7
7.7
w
max.
0.252.547.62
0.010.100.30
0.040.190.020.15
ISSUE DATE
94-04-13
95-01-25
1.04.70.513.7
(1)
Z
Page 16
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
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”
Soldering by dipping or by wave
The maximum permissible temperature of the solder is
260 °C; solder at this temperature must not be in contact
DEFINITIONS
Data sheet status
Objective specificationThis data sheet contains target or goal specifications for product development.
Preliminary specificationThis data sheet contains preliminary data; supplementary data may be published later.
Product specificationThis 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.
(order code 9398 652 90011).
with the joint 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
printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.
Repairing soldered joints
Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, 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.
stg max
). If the
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.
1995 Oct 0416
Page 17
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
NOTES
1995 Oct 0417
Page 18
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
NOTES
1995 Oct 0418
Page 19
Philips SemiconductorsPreliminary specification
Multiple voltage regulator with switchTDA3603
NOTES
1995 Oct 0419
Page 20
Philips Semiconductors – a worldwide company
Argentina: IEROD, Av. Juramento 1992 - 14.b, (1428)
BUENOS AIRES, Tel. (541)786 7633, Fax. (541)786 9367
Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113,
Tel. (02)805 4455, Fax. (02)805 4466
Austria: Triester Str. 64, A-1101 WIEN, P.O. Box 213,
Tel. (01)60 101-1236, Fax. (01)60 101-1211
Belgium: Postbus 90050, 5600 PB EINDHOVEN, The Netherlands,
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
513061/1500/02/pp20Date of release: 1995 Oct 04
Document order number:9397 750 00342
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