Datasheet tda3606 DATASHEETS (Philips)

INTEGRATED CIRCUITS

DATA SH EET

TDA3606

Multiple voltage regulator with
battery detection

Product specification
Supersedes data of 1997 Jul 15
File under Integrated Circuits, IC01

1998 Jun 16

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

FEATURES

• One VP-state controlled regulator

• Regulator and reset outputs operate during load dump

• Supply voltage range of −18 to +50 V

• Low quiescent current (battery detection switched off)

• High ripple rejection

• Dual reset output.

PROTECTIONS

• Reverse polarity safe (down to −18 V without high
reverse current)

• Able to withstand voltages up to 18 V at the output
(supply line may be short-circuited)

• ESD protected on all pins

• Load dump protection

• Foldback current limit protection for regulator

• DC short-circuit safe to ground and V

output.

of regulator

P

TDA3606

GENERAL DESCRIPTION

The TDA3606 is a low power voltage regulator. It contains:

1. One fixed voltage regulator with a foldback current
protection, intended to supply a microprocessor that
also operates during load dump

2. A reset-signal can be used to interface with the
microprocessor

3. Supply pin can withstand load dump pulses and
negative supply voltages

4. Defined start-up behaviour; regulator will be switched
on at a supply voltage higher than 7.6 V and off when
the output voltage of the regulator drops below 2.4 V.

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

V

P

supply voltage

operating regulator on 5.6 14.4 25 V
jump start t ≤ 10 minutes −−30 V

I

q(tot)

load dump protection during 50 ms; t

total quiescent supply current standby mode − 95 120 µA

≥ 2.5 ms −−50 V

r

Voltage regulator

V

V

REG

REGd

output voltage regulator 7 V ≤ VP≤ 18 V 4.85 5.0 5.15 V

≤ 50 mA 4.8 5.0 5.2 V

REG

drop-out voltage I

0.5 mA ≤ I
=50mA −−0.4 V

REG

ORDERING INFORMATION

TYPE

NUMBER

NAME DESCRIPTION VERSION

PACKAGE

TDA3606T SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1

1998 Jun 16 2

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

BLOCK DIAGRAM

handbook, full pagewidth

V

V

P

V

I(bat)

(14.4 V)

8

3

C

LOAD DUMP

PROTECTION

REFERENCE

TDA3606

BATTERY

BUFFER

4

GND

REG

REGULATOR

&

4.7
kΩ

4.7
kΩ

MGB852

7

(5 V/50 mA)

5

6

21

RES2

RES1

V

O(bat)

TDA3606

REG

PINNING

SYMBOL PIN DESCRIPTION

V

I(bat)

V

O(bat)

V

C

1 battery input voltage
2 battery detection output voltage

3 reset delay capacitor
GND 4 ground (0 V)
RES2 5 reset 2 output
RES1 6 reset 1 output
REG 7 regulator output
V

P

8 supply voltage

Fig.1 Block diagram.

handbook, halfpage

V

1

I(bat)

V

O(bat)

V

GND

2

TDA3606T

3

C

4

Fig.2 Pin configuration.

MGB856

V

8

P

REG

7

RES1

6

RES2

5

1998 Jun 16 3

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

FUNCTIONAL DESCRIPTION

The TDA3606 is a voltage regulator intended to supply a
microprocessor (e.g. in car radio applications). Because of
low voltage operation of the application, a low-voltage drop
regulator is used in the TDA3606.

This regulator will switch on when the supply voltage
exceeds 7.5 V for the first time and will switch off again
when the output voltage of the regulator drops below

2.4 V. When the regulator is switched on, the RES1 and
RES2 outputs (RES2 can only be HIGH when RES1 is
HIGH) will go HIGH after a fixed delay time (fixed by an
external delay capacitor) to generate a reset to the
microprocessor.

handbook, full pagewidth

TDA3606

RES1 will go HIGH by an internal pull-up resistor of 4.7 kΩ,
and is used to initialize the microprocessor. RES2 is used
to indicate that the regulator output voltage is within its
voltage range. This start-up feature is built-in to secure a
smooth start-up of the microprocessor at first connection,
without uncontrolled switching of the regulator during the
start-up sequence.

All output pins are fully protected. The regulator is
protected against load dump and short-circuit (foldback
current protection).

Interfacing with the microprocessor can be accomplished
by means of a battery Schmitt-trigger and output buffer
(simple full/semi on/off logic applications). The battery
output will go HIGH when the battery input voltage
exceeds the HIGH threshold level.

50 V

V

regulator

reset 1

reset 2

reset delay

capacitor

on/off switch

battery input

battery output

P

4.35 V 4.35 V

2 V 2 V

Fig.3 Timing diagrams.

2.4 V

2.1 V

2 V

MGB857

1998 Jun 16 4

Philips Semiconductors Product specification

Multiple voltage regulator with battery

TDA3606

detection

LIMITING VALUES

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

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

P

V

P

V

I(bat)p

V

I(bat)n

P

tot

T

stg

T

amb

T

j

THERMAL CHARACTERISTICS

supply voltage

operating regulator on − 25 V
jump start t ≤ 10 minutes − 30 V
load dump protection during 50 ms; t

≥ 2.5 ms − 50 V

r

reverse battery voltage non-operating −−18 V
positive pulse voltage at battery input VP= 14.4 V; RI=5kΩ− 50 V
negative pulse voltage at battery input VP= 14.4 V; RI=5kΩ− −100 V
total power dissipation T

=25°C − 0.81 W

amb

storage temperature non-operating −55 +150 °C
operating ambient temperature −40 +85 °C
junction temperature operating −40 +150 °C

SYMBOL PARAMETER CONDITIONS VALUE UNIT

R

th j-a

thermal resistance from junction to ambient in free air 155 K/W

QUALITY SPECIFICATION

In accordance with

Handbook”

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

“SNW-FQ-611E”

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

“Quality Reference

1998 Jun 16 5

Philips Semiconductors Product specification

Multiple voltage regulator with battery

TDA3606

detection

CHARACTERISTICS

V

= 14.4 V; T

P

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supplies

V

P

I

q

Schmitt-trigger for regulator and reset 1

V

thr

V

thf

V

hys

Schmitt-trigger for battery detection

V

thr

V

thf

V

hys

Schmitt-trigger for reset 2

V

thr

V

thf

V

hys

Reset 1/2 buffer

I

sink

R

pu

Reset delay

I

o

V

thr

t

d

Battery buffer

V

OL

V

OH

I

OL

I

OH

=25°C; see Fig.5; unless otherwise specified.

amb

supply voltage

operating regulator on; note 1 5.6 14.4 25 V
jump start t ≤ 10 minutes −−30 V
load dump protection during 50 ms, t

≥ 2.5 ms −−50 V

r

quiescent current VP= 12.4 V; note 2 − 95 120 µA

V

= 14.4 V; note 2 − 100 −µA

P

load dump; V

=50V − 515mA

P

rising supply voltage threshold 6.2 7.5 8.2 V
falling voltage of regulator

threshold

I

= 5 mA 2.2 2.4 2.6 V

REG

I

=30mA − 2.25 − V

REG

hysteresis − 5.1 − V

rising voltage threshold 1.95 2.05 2.15 V
falling voltage threshold 1.85 1.95 2.05 V
hysteresis − 0.1 − V

rising voltage of regulator note 3 4.3 4.45 4.6 V
falling voltage of regulator note 3 4.2 4.35 4.5 V
hysteresis − 0.1 − V

LOW-level sink current V

≤ 0.8 V; note 3 2 −−mA

RES

internal pull-up resistor 3.7 4.7 5.7 kΩ

output current − 0.75 −µA
rising voltage threshold 1.4 2.0 2.8 V
delay time Cd= 47 nF; note 4 40 125 − ms

LOW-level output voltage II= 0 mA 0 0.05 0.8 V
HIGH-level output voltage Io=5µA; note 5 − 5.0 5.2 V
LOW-level output current VOL≤ 0.8 V 0.2 0.5 − mA
HIGH-level output current VOH≥ 3 V 0.3 1.0 − mA

1998 Jun 16 6

Philips Semiconductors Product specification

Multiple voltage regulator with battery

TDA3606

detection

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Regulator (I

V

o

I

o

∆V

REG

∆V

REGL

SVRR supply voltage ripple rejection f

V

REGd

I

clr

I

scr

Notes

1. Minimum operating voltage, only if VP has exceeded 7.6 V.

2. The quiescent current is measured in stand-by mode. So, the battery input is connected to a low voltage source and
RL= ∞.

3. The voltage of regulator sinks as a result of a supply voltage drop.

= 5 mA)

REG

output voltage 0.5 mA ≤ I

7V≤V

P

18 V ≤ V
I

=30mA

REG

≤ 50 mA 4.8 5.0 5.2 V

REG

≤18 V 4.85 5.0 5.15 V

≤ 50 V; load dump;

P

4.75 5.0 5.25 V

output current load dump; VP>25V −−45 mA
line regulation 7 V ≤ VP≤ 18 V − 350mV
load regulation 0.5 mA ≤ I

= 200 Hz; V

i

≤ 30 mA −−50 mV

REG

i(p-p)

=2V;

55 60 − dB

Io=5mA
drop-out voltage I
current limit V

= 50 mA; VP= 5 V; note 6 − 0.27 0.4 V

REG

> 4.5 V; note 7 0.1 0.27 0.6 A

REG

short-circuit current RL≤ 0.5 Ω; note 8 15 60 − mA

4. The delay time can be calculated with the following formula:

C

d

t

d

dV

------ -

∫

I

ch

thr

CdV

×

----------------------­I

ch

5. Battery output voltage will be equal or less than the output voltage of regulator.

6. The drop-out voltage of regulator is measured between VP and V

7. At current limit, I

is held constant (behaviour according to dashed line in Fig.4).

clr

REG

.

8. The foldback current protection limits the dissipated power at short-circuit (see Fig.4).

handbook, halfpage

5.0 V

V

REG

1 V

I

scr

≥50 mA

I

REG

MGB853

I

clr

thr

(ms)==

Fig.4 Foldback current protection.

1998 Jun 16 7

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TEST AND APPLICATION INFORMATION
Test information

handbook, full pagewidth

V

P

8

V

C

3

TDA3606

1

V

V

I(bat)

(1)

P

10 µF

battery input voltage

10 µF

4

GND

regulator output

7

reset 1 output

6

reset 2 output

5

battery output voltage

2

10 µF

MGB808

TDA3606

R

L(REG)

1 kΩ .. 0.5 Ω

R

L(RES1)

1 kΩ

R

L(RES2)

1 kΩ

R

L(bat)

1 kΩ

(1) Capacitor not required for stability.

Fig.5 Test circuit.

Application information

N

OISE

The noise at the output of the regulator depends on the
bandwidth of the regulator, which can be adjusted by
means of the output capacitor. In Table 1 the noise figures
are given.

Table 1 Noise figures

OUTPUT

CURRENT

(mA)

I

O

NOISE FIGURE (µV)

AT OUTPUT CAPACITOR CL(µF)

10 47 100

(1)

0.5 58 50 45
50 250 200 180

Note

1. Measured at a bandwidth of 10 Hz to 100 kHz.

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 regulator is translated into a current noise by
means of the output capacitor). When a high frequency
capacitor of 220 nF in parallel with an electrolytic capacitor

of 100 µF is connected directly to pins 8 and 4 (supply and
ground) the noise is minimized.

S

TABILITY

The regulator is stabilized by means of the output
capacitor. The value of the output capacitor can be
selected using the diagram shown in Fig.6. The following
two examples show the effects of the stabilization circuit
using different values for the output capacitor.

Example 1

The regulator is stabilized using an electrolytic output
capacitor of 68 µF (ESR = 0.5 Ω). At −40 °C the capacitor
value is decreased to 22 µF and the ESR is increased to

3.5 Ω. The regulator will remain stable at a temperature of

−40 °C.

Example 2

The regulator is stabilized using an electrolytic output
capacitor of 10 µF (ESR = 3.3 Ω). At −40 °C the capacitor
value is decreased to 3 µF and the ESR is increased to

23.1 Ω. The regulator will be instable at a temperature of

−40 °C. This can be solved using a tantalum capacitor of
10 µF.

1998 Jun 16 8

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

handbook, full pagewidth

ESR

(Ω)

8

6

4

2

0

0.68

1

(1)

(2)

stable region

10

TDA3606

MBK118

100 1000

output capacitor (µF)

(1) Maximum ESR.
(2) Minimum ESR.

Fig.6 Curve for selecting the value of the output capacitor.

APPLICATION CIRCUITS
In Fig.7 the quiescent current equals Iq+I

Rdivider

.
The specified quiescent current equals Iq. When the
supply voltage is connected, the regulator will switch on
when the supply voltage exceeds 7.6 V. With the aid of a
timing capacitor at pin 3 the reset can be delayed (the
timer starts at the same moment as the regulator is
switched on).

Forced reset can be accomplished by short-circuiting the
timer capacitor by using the push button switch. When the
push button is released again, the timer restarts (only
when the regulator is on) causing a second reset on both
RES1 and RES2.

The maximum output current of the regulator equals:

150 T

–

I

max

When T

------------------------------------------------------­R

th j-a

=85°C, the maximum output current equals

amb

amb

VPV

–()×

REG

45 mA. At lower ambient (T

< 0) temperature the

amb

–

150 T

--------------------------------------­155 V

amb

P

5–()×

(mA)==

maximum output current equals 100 mA.

1998 Jun 16 9

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

handbook, full pagewidth

choke

coil

2200

µF

forced reset

on/off
(closed = on)

8 V detector

R1
360 kΩ

R2
100 kΩ

V

I(bat)

V

C

d

TDA3606

V

P

8

1

TDA3606

C

3

4

REG

7

10 µF

RES1

6

RES2

5

V

O(bat)

2

used for
8 V detector

MGB854

Fig.7 Typical application.

1998 Jun 16 10

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

PACKAGE OUTLINE

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

D

c

y

Z

8

5

TDA3606

SOT96-1

E

H

E

A

X

v M

A

A

pin 1 index

1

e

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

UNIT

mm

inches

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.

A

max.

1.75

0.069

A

1

0.25

0.10

0.010

0.004

A2A

1.45

1.25

0.057

0.049

0.25

0.01

b

3

p

0.49

0.25

0.36

0.19

0.019

0.0100

0.014

0.0075

4

w M

b

p

0 2.5 5 mm

scale

(1)E(2)

cD

5.0

4.8

0.20

0.19

eHELLpQZywv θ

4.0

1.27

3.8

0.16

0.050

0.15

2

A

6.2

5.8

0.244

0.228

Q

3

A

θ

0.25 0.10.25

0.010.010.041 0.004

(1)

0.7

0.3

0.028

0.012

o

8

o

0

L

p

L

0.7

0.6

0.028

0.024

(A )

1

detail X

1.0

1.05

0.4

0.039

0.016

OUTLINE
VERSION

SOT96-1

IEC JEDEC EIAJ

076E03S MS-012AA

REFERENCES

1998 Jun 16 11

EUROPEAN

PROJECTION

ISSUE DATE

95-02-04
97-05-22

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

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

“Data Handbook IC26; Integrated Circuit Packages”

(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.

TDA3606

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 Jun 16 12

Philips Semiconductors Product specification

Multiple voltage regulator with battery

TDA3606

detection

DEFINITIONS

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.

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.

1998 Jun 16 13

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

NOTES

TDA3606

1998 Jun 16 14

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

NOTES

TDA3606

1998 Jun 16 15

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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]

© Philips Electronics N.V. 1998 SCA60
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Printed in The Netherlands 545102/1200/03/pp16 Date of release: 1998 Jun 16 Document order number: 9397 750 03767