Datasheet TDA3606AT-N1 Datasheet (Philips)

DATA SH EET

Product specification
Supersedes data of 1997 Aug 12
File under Integrated Circuits, IC01

1998 May 07

INTEGRATED CIRCUITS

TDA3606A

Multiple voltage regulator with
battery detection

1998 May 07 2

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

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

P

of regulator

output.

GENERAL DESCRIPTION

The TDA3606A 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

ORDERING INFORMATION

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supplies

V

P

supply voltage

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

r

≥ 2.5 ms −−50 V

I

q(tot)

total quiescent supply current standby mode − 95 120 µA

Voltage regulator

V

REG

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

0.5 mA ≤ I

REG

≤ 150 mA 4.8 5.0 5.2 V

V

REGd

drop-out voltage I

REG

= 150 mA −−0.5 V

TYPE

NUMBER

PACKAGE

NAME DESCRIPTION VERSION

TDA3606AT SO20 plastic small outline package; 20 leads; body width 7.5 mm SOT163-1

1998 May 07 3

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

BLOCK DIAGRAM

Fig.1 Block diagram.

handbook, full pagewidth

MGK597

REGULATOR

LOAD DUMP

PROTECTION

REFERENCE

7

&

GND

1 to 3, 8 to 13, 18 to 20

n.c.

TDA3606A

REG

REG

RES2

RES1

(14.4 V)

(5 V/150 mA)

14

16

BATTERY

BUFFER

V

O(bat)

V

I(bat)

V

C

V

P

15

5

4

6

17

4.7
kΩ

4.7
kΩ

PINNING

SYMBOL PIN DESCRIPTION

n.c. 1 to 3 not connected; heat spreader
V

I(bat)

4 battery input voltage

V

O(bat)

5 battery detection output voltage

V

C

6 reset delay capacitor
GND 7 ground (0 V)
n.c. 8 to 13 not connected; heat spreader
RES2 14 reset 2 output
RES1 15 reset 1 output
REG 16 regulator output
V

P

17 supply voltage

n.c. 18 to 20 not connected; heat spreader

Fig.2 Pin configuration.

handbook, halfpage

n.c.
n.c.
n.c.

V

I(bat)

V

O(bat)

V

C

GND

n.c.
n.c.
n.c.

n.c.
n.c.
n.c.
V

P

RES1
RES2

REG

n.c.
n.c.
n.c.

1
2
3
4
5
6
7
8
9

10

11

12

20
19
18
17
16
15
14
13

TDA3606AT

MGK600

1998 May 07 4

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

FUNCTIONAL DESCRIPTION

The TDA3606A 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 TDA3606A.

This regulator will switch on when the supply voltage
exceeds 7.6 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.

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.

Fig.3 Timing diagrams.

handbook, full pagewidth

2.1 V

V

P

regulator

reset 1

50 V

4.35 V 4.35 V

2.4 V

2 V 2 V

2 V

reset 2

on/off switch

battery input

battery output

reset delay

capacitor

MGB857

1998 May 07 5

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

LIMITING VALUES

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

THERMAL CHARACTERISTICS

Notes

1. On IMS board.

2. On standard board with double sided copper area connected to pins.

QUALITY SPECIFICATION

In accordance with

“SNW-FQ-611E”

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

“Quality Reference

Handbook”

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

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

P

supply voltage

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

r

≥ 2.5 ms − 50 V

V

P

reverse battery voltage non-operating −−18 V

V

I(bat)p

positive pulse voltage at battery input VP= 14.4 V; RI=5kΩ− 50 V

V

I(bat)n

negative pulse voltage at battery input VP= 14.4 V; RI=5kΩ− −100 V

P

tot

total power dissipation T

amb

=25°C − 2.5 W

T

stg

storage temperature non-operating −55 +150 °C

T

amb

operating ambient temperature −40 +85 °C

T

j

junction temperature operating −40 +150 °C

SYMBOL PARAMETER CONDITIONS VALUE UNIT

R

th (j-p)

thermal resistance from junction to pins 20 K/W

R

th (j-a)

thermal resistance from junction to
ambient

in free air; note 1 50 K/W
in free air; note 2 60 K/W

1998 May 07 6

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

CHARACTERISTICS

V

P

= 14.4 V; T

amb

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

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supplies

V

P

supply voltage

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

r

≥ 2.5 ms −−50 V

I

q

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

V

P

= 14.4 V; note 2 − 100 −µA

load dump; V

P

=50V − 520mA

Schmitt-trigger for regulator and reset 1

V

thr

rising supply voltage threshold 6.2 7.5 8.2 V

V

thf

falling voltage of regulator
threshold

I

REG

= 5 mA 2.1 2.4 2.7 V

I

REG

=30mA − 2.25 − V

V

hys

hysteresis − 5.1 − V

Schmitt-trigger for battery detection

V

thr

rising voltage threshold 1.9 2.05 2.2 V

V

thf

falling voltage threshold 1.8 1.95 2.1 V

V

hys

hysteresis − 0.1 − V

Schmitt-trigger for reset 2

V

thr

rising voltage of regulator note 3 4.25 4.45 4.65 V

V

thf

falling voltage of regulator note 3 4.15 4.35 4.55 V

V

hys

hysteresis − 0.1 − V

Reset 1 and reset 2 buffers

I

sink

LOW-level sink current V

RES

≤ 0.8 V; note 3 2 −−mA

R

pu

internal pull-up resistor 3.7 4.7 5.7 kΩ

Reset delay

I

o

output current − 0.75 −µA

V

thr

rising voltage threshold 1.4 2.0 2.8 V

t

d

delay time Cd= 47 nF; note 4 40 125 − ms

Battery buffer

V

OL

LOW-level output voltage II= 0 mA 0 0.05 0.8 V

V

OH

HIGH-level output voltage Io=5µA; note 5 − 5.0 5.2 V

I

OL

LOW-level output current VOL≤ 0.8 V 0.2 0.5 − mA

I

OH

HIGH-level output current VOH≥ 3 V 0.3 1.0 − mA

1998 May 07 7

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

Notes

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

2. The quiescent current is measured in standby 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.

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

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

REG

.

7. At current limit, I

clr

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

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

Regulator (I

REG

= 5 mA)

V

o

output voltage 0.5 mA ≤ I

REG

≤ 150 mA;

7V≤VP≤18 V

4.8 5.0 5.2 V

18 V ≤ V

P

≤ 50 V; load dump;

I

REG

=30mA

4.75 5.0 5.25 V

I

o

output current load dump; VP>25V −−100 mA

∆V

REG

line regulation 7 V ≤ VP≤ 18 V − 350mV

∆V

REGL

load regulation 0.5 mA ≤ I

REG

≤ 150 mA −−70 mV

SVRR supply voltage ripple rejection f

i

= 200 Hz; V

i(p-p)

=2V;

Io=5mA

55 60 − dB

V

REGd

drop-out voltage I

REG

= 150 mA; VP= 5.5 V;

note 6

− 0.9 1 V

I

clr

current limit V

REG

> 4.5 V; note 7 0.2 0.27 0.6 A

I

scr

short-circuit current RL≤ 0.5 Ω; note 8 50 80 − mA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

t

d

C

d

I

ch

------ -

dV

thr

∫

CdV

thr

×

I

ch

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

(ms)==

Fig.4 Foldback current protection.

handbook, halfpage

≥50 mA

MGB853

5.0 V

1 V

V

REG

I

scr

I

REG

I

clr

1998 May 07 8

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

TEST AND APPLICATION INFORMATION
Test information

Fig.5 Test circuit.

(1) Capacitor not required for stability.

handbook, full pagewidth

MGK598

reset 1 output

reset 2 output

1 kΩ

battery output voltage

R

L(RES1)

1 kΩ

R

L(RES2)

1 kΩ

R

L(bat)

15

16

14

5

6

17

7

TDA3606A

GND

V

P

V

P

V

C

battery input voltage

4

V

I(bat)

(1)

regulator output

10 µF

10 µF

10 µF

1 kΩ .. 0.5 Ω

R

L(REG)

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

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

OUTPUT

CURRENT

I

O

(mA)

NOISE FIGURE (µV)

(1)

AT OUTPUT CAPACITOR CL(µF)

10 47 100

0.5 58 50 45
50 250 200 180

of 100 µF is connected directly to pins 17 and 7 (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 May 07 9

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

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

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

handbook, full pagewidth

2

0

1

0.68

(1)

(2)

10

output capacitor (µF)

MBK118

4

6

8

stable region

100 1000

ESR

(Ω)

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 6 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:

When T

amb

=85°C, the maximum output current equals

138 mA. At lower ambient (T

amb

< 0) temperature the

maximum output current equals 320 mA.

I

max

150 T

amb

–

R

th j-a

VPV

REG

–()×

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

150 T

amb

–

50 V

P

5–()×

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

(mA)==

1998 May 07 10

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

Fig.7 Typical application.

handbook, full pagewidth

MGK599

TDA3606A

REG

RES1

RES2

15

16

V

O(bat)

V

I(bat)

V

C

V

P

14

7

5

4

6

forced reset

used for
8 V detector

17

8 V detector

on/off
(closed = on)

R1
360 kΩ

R2
100 kΩ

10 µF

2200

µF

C

d

choke

coil

1998 May 07 11

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

PACKAGE OUTLINE

UNIT

A

max.

A

1

A2A

3

b

p

cD

(1)E(1) (1)

eHELLpQ

Z

ywv θ

REFERENCES

OUTLINE
VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC JEDEC EIAJ

mm

inches

2.65

0.30

0.10

2.45

2.25

0.49

0.36

0.32

0.23

13.0

12.6

7.6

7.4

1.27

10.65

10.00

1.1

1.0

0.9

0.4

8
0

o
o

0.25 0.1

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

Note

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

1.1

0.4

SOT163-1

10

20

w M

b

p

detail X

Z

e

11

1

D

y

0.25

075E04 MS-013AC

pin 1 index

0.10

0.012

0.004

0.096

0.089

0.019

0.014

0.013

0.009

0.51

0.49

0.30

0.29

0.050

1.4

0.055

0.419

0.394

0.043

0.039

0.035

0.016

0.01

0.25

0.01

0.004

0.043

0.016

0.01

0 5 10 mm

scale

X

θ

A

A

1

A

2

H

E

L

p

Q

E

c

L

v M

A

(A )

3

A

SO20: plastic small outline package; 20 leads; body width 7.5 mm

SOT163-1

95-01-24
97-05-22

1998 May 07 12

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

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.

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 May 07 13

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

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 May 07 14

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

NOTES

1998 May 07 15

Philips Semiconductors Product specification

Multiple voltage regulator with battery
detection

TDA3606A

NOTES

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

Philips Semiconductors – a worldwide company

© Philips Electronics N.V. 1998 SCA59
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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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 BesantRoad, Worli, MUMBAI 400 025,
Tel. [phone], Fax.[phone]

Indonesia: PT Philips Development Corporation, Semiconductors Division,
Gedung Philips, Jl. Buncit Raya Kav.99-100, JAKARTA 12510,
Tel. [phone] ext.2501, Fax. [phone]

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]

Printed in The Netherlands 545102/1200/02/pp16 Date of release: 1998 May07 Document order number: 9397 750 03768