Datasheet TDA3605Q-N2, TDA3605Q-N3, TDA3605Q-N1-S420, TDA3605Q-N1 Datasheet (Philips)

DATA SH EET

Preliminary specification
Supersedes data of 1995 Nov 20
File under Integrated Circuits, IC01

1997 Jul 09

INTEGRATED CIRCUITS

TDA3605Q

Multiple voltage regulator with
switch

1997 Jul 09 2

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

FEATURES

• Two VP-state controlled regulators (regulator 1 and
regulator 3) and a power switch

• Regulator 2, reset and ignition buffer operates during
load dump and thermal shutdown

• Separate control pins for switching regulator 1,
regulator 3 and the power switch

• Supply voltage range of −18 to +50 V (operating from
11 V)

• Low reverse current of regulator 2

• Low quiescent current (when regulator 1, regulator 3,

and power switch are switched off)

• Hold output (only valid when regulator 1 is switched on)

• Reset and hold outputs (open collector outputs)

• Adjustable reset delay time

• High ripple rejection

• Back-up capacitor for regulator 2.

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 short-circuited)

• ESD protected on all pins

• Thermal protection

• Local thermal protection for power switch

• Load dump protection

• Foldback current limit protection for

regulators 1, 2 and 3

• Delayed second current limit protection for the power
switch (at short-circuit)

• The regulator outputs and the power switch are DC
short-circuited safe to ground and V

P

.

GENERAL DESCRIPTION

The TDA3605Q is a multiple output voltage regulator with
a power switch, intended for use in car radios with or
without a microcontroller. It contains:

1. Two fixed voltage regulators with a foldback current
protection (regulator 1 and regulator 3) and one fixed
voltage regulator (regulator 2), intended to supply a
microcontroller, that also operates during load dump
and thermal shutdown.

2. A power switch with protections, operated by an
enable input.

3. Reset and hold outputs can be used to interface by the
microcontroller. The reset signal can be used to call up
the microcontroller and the hold output indicates
regulator 1 voltage available and within range.

4. A supply pin which can withstand load dump pulses
and negative supply voltage.

5. Regulator 2 will be switched on at a supply voltage
>6.5 V and off at a voltage of regulator 2 <1.9 V.

6. Also there is a provision for use of a reserve supply
capacitor that will hold enough energy for regulator 2
(5 V continuous) to allow a microcontroller to prepare
for loss of voltage.

ORDERING INFORMATION

TYPE NUMBER

PACKAGE

NAME DESCRIPTION VERSION

TDA3605Q DBS13P

plastic DIL-bent-SIL power package; 13 leads (lead length 12 mm)

SOT141-6

1997 Jul 09 3

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

V

P

supply voltage

operating 11 14.4 18 V
reverse battery −18 −−V
regulator 2 on 2.4 14.4 18 V
jump start t ≤ 10 minutes −−30 V
load dump protection during ≤50 ms; t

r

≥ 2.5 ms −−50 V

I

q(tot)

total quiescent supply current standby mode − 500 600 µA

T

j

junction temperature −−150 °C

Voltage regulators

V

REG1

output voltage regulator 1 0.5 mA ≤ I

REG1

≤ 600 mA 9.5 10.0 10.5 V

V

REG2

output voltage regulator 2 0.5 mA ≤ I

REG2

≤ 300 mA; VP= 14.4 V 4.75 5.0 5.25 V

V

REG3

output voltage regulator 3 0.5 mA ≤ I

REG3

≤ 400 mA 4.75 5.0 5.25 V

Power switch

V

sw(d)

drop-out voltage Isw=1A − 0.45 0.7 V

I

sw

= 1.8 A − 1 1.8 V

I

swM

peak current 3 −−A

1997 Jul 09 4

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

BLOCK DIAGRAM

Fig.1 Block diagram.

handbook, full pagewidth

MGB753

REGULATOR 2

REGULATOR 3

REGULATOR 1

13

12

5

TEMPERATURE

LOAD DUMP

PROTECTION

1

7

4

6

9

10

POWER SWITCH

BACK-UP SWITCH

BACK-UP CONTROL

&

&

&

GND

(14.4 V)

TDA3605Q

RES

REG2

REG3

REG1

(14.2 V/3 A)

(14.2 V/100 mA)

(5 V/100 mA)

(5 V/400 mA)

(10 V/600 mA)

V

sw

V

P

V

en(sw)

V

en3

V

en1

V

C

V

bu

V

hold

1 A after 10 ms

(short-circuit)

8

2

3

11

1997 Jul 09 5

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

PINNING

SYMBOL PIN DESCRIPTION

V

P

1 supply voltage
REG1 2 regulator 1 output
REG3 3 regulator 3 output
V

en3

4 enable input regulator 3
RES 5 reset output voltage
V

en1

6 enable input regulator 1
V

en(sw)

7 enable input power switch
V

hold

8 hold output
V

C

9 reset delay capacitor
GND 10 ground (0 V)
REG2 11 regulator 2 output
V

bu

12 back-up

V

sw

13 power switch output voltage

Fig.2 Pin configuration.

handbook, halfpage

TDA3605Q

MGB752

1
2
3
4
5
6
7
8

9
10
11
12
13

V

P

REG1
REG3

V

en3

V

en1

V

en(sw)

V

hold

REG2

RES

V

sw

V

bu

V

C

GND

FUNCTIONAL DESCRIPTION

The TDA3605Q 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 in the TDA3605Q.

Regulator 2 will switch-on when the back-up 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 far 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 pin 9. The above
mentioned start-up feature is built-in to secure a smooth
start-up of the microcontroller at first connection, without
uncontrolled switching of regulator 2 during the start-up
sequence.

The charge of the back-up capacitor can be used to supply
regulator 2 for a short period when the supply falls to 0 V
(time depends on value of storage capacitor). When both
regulator 2 and the supply voltage (V

P

> 4.5 V) are
available, regulators 1 and 3 can be operated by means of
enable inputs (pins 6 and 4 respectively).

Regulator 1 has a hold output (open collector) indicating
that the output voltage of this regulator is settled
(held HIGH by external pull-up resistor) and when the
output voltage of this regulator drops out of regulation
(because of supply voltage drop or high load) the hold
output will go LOW. The hold output signal is only valid
when regulator 1 is enabled by its enable input (pin 6).

The power switch can also be controlled by means of a
separate enable input (pin 7).

All output pins are fully protected. The regulators are
protected against load dump (regulator 1 and 3 will switch
off at supply voltages >18 V) and short-circuit (foldback
current protection).

The switch contains a current protection, but this
protection is delayed at short-circuit condition for at least
10 ms. During this time the output current is limited to a
peak value of at least 3 A and 2 A (DC) (V

P

≤ 18 V).
At supply voltages >17 V the switch is clamped at
maximum 16 V (to avoid external connected circuitry being
damaged by an overvoltage) and the switch will switch-off
at load dump.

The total timing of a semi on/off logic set is shown in Fig.3.

1997 Jul 09 6

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

Fig.3 Timing diagram.

handbook, full pagewidth

V

P

V

bu

regulator 2

reset
delay

capacitor

reset

V

P

enable

regulator 1

regulator 1

regulator 3

enable

regulator 3

V

P

enable

power
switch

power
switch
output

6.5 V

5.4 V

4.0 V

5.0 V

1.9 V
0 V

5.0 V
0 V

18.0 V

10.4 V

4.5 V

4.0 V

≥2.2 V

10.0 V

0 V

load dump

5.0 V

0 V

16.9 V

4.5 V

4.0 V

0 V

3.0 V

6.0 V

≤2.0 V

≥2.2 V
≤2.0 V

≥2.2 V
≤2.0 V

load dump

load dump

MGB759

Switch behaviour

VP and enable Schmitt-trigger

Back-up Schmitt-trigger and reset behaviour

1997 Jul 09 7

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

LIMITING VALUES

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

THERMAL CHARACTERISTICS

CHARACTERISTICS

V

P

= 14.4 V; T

amb

=25°C; see Fig.6; unless otherwise specified.

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

P

supply voltage

operating − 18 V
jump start t ≤ 10 minutes − 30 V
load dump protection during ≤50 ms; t

r

≥ 2.5 ms − 50 V

V

P

reverse battery voltage non-operating −−18 V

P

tot

total power dissipation − 62 W

T

stg

storage temperature non-operating −55 +150 °C

T

amb

ambient temperature operating −40 +85 °C

T

j

junction temperature operating −40 +150 °C

SYMBOL PARAMETER VALUE UNIT

R

th j-c

thermal resistance from junction to case 2 K/W

R

th j-a

thermal resistance from junction to ambient in free air 50 K/W

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

V

P

supply voltage

operating 11 14.4 18 V
regulator 2 on note 1 2.4 14.4 18 V
jump start t ≤ 10 minutes −− 30 V
load dump protection during ≤50 ms;

t

r

≥ 2.5 ms

−− 50 V

I

q

quiescent current VP= 12.4 V; note 2;

IR2= 0.1 mA

− 500 600 µA

V

P

= 14.4 V; note 2;

IR2= 0.1 mA

− 520 −µA

Schmitt-trigger power supply for switch, regulator 1 and regulator 3

V

thr

rising voltage threshold 4.0 4.5 5.0 V

V

thf

falling voltage threshold 3.5 4.0 4.5 V

V

hys

hysteresis − 0.5 − V

Schmitt-trigger power supply for regulator 2

V

thr

rising voltage threshold 6.0 6.5 7.1 V

V

thf

falling voltage threshold 1.7 1.9 2.2 V

V

hys

hysteresis − 4.6 − V

1997 Jul 09 8

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

Schmitt-trigger for enable input (regulator 1, regulator 3 and switch)

V

thr

rising voltage threshold 1.7 2.2 2.7 V

V

thf

falling voltage threshold 1.5 2.0 2.5 V

V

hys

hysteresis I

REG=ISW

= 1 mA 0.1 0.2 0.5 V

I

LI

input leakage current Ven=5V 1 5 10 µA

Schmitt-trigger for reset buffer

V

thr

rising voltage threshold
of regulator 2

VPrising;
I

REG1

= 50 mA; note 3

− V

REG2

− 0.15 V

REG2

− 0.075 V

V

thf

falling voltage threshold
of regulator 2

VPrising;
I

REG1

= 50 mA; note 3

4.3 V

REG2

− 0.35 − V

V

hys

hysteresis 0.1 0.2 0.3 V

Schmitt-trigger for hold

V

thr

rising voltage threshold
of regulator 1

VPrising; note 3 − V

REG1

− 0.15 V

REG1

− 0.075 V

V

thf

falling voltage threshold
of regulator 1

VPrising; note 3 9.2 V

REG1

− 0.35 − V

V

hys

hysteresis 0.1 0.2 0.3 V

Reset and hold buffer

I

Lsink

LOW level sink current V

RES/hold

≤ 0.8 V 2 −− mA

I

LO

output leakage current VP= 14.4 V;

V

RES/hold

=5V

− 16 32 µA

t

r

rise time note 4 − 750µs

t

f

fall time note 4 − 150 µs

Reset delay

I

ch

charge current 2 4 8 µA

I

dch

discharge current 500 800 −µA

V

thr

rising voltage threshold 2.5 3.0 3.5 V

t

d

delay time C = 47 nF; note 5 20 35 70 ms

Regulator 1 (I

REG1

= 5 mA)

V

REG1(off)

output voltage off − 1 400 mV

V

REG1

output voltage 1 mA ≤ I

REG1

≤ 600 mA 9.5 10.0 10.5 V

11 V ≤ V

P

≤ 18 V 9.5 10.0 10.5 V

∆V

REG1

line regulation 11 V ≤ VP≤ 18 V − 275mV

∆V

REGL1

load regulation 1 mA ≤ I

REG1

≤ 600 mA − 20 50 mV

I

q

quiescent current IR1= 600 mA − 25 60 mA

SVRR1 supply voltage ripple

rejection

f

i

= 3 kHz; V

i(p-p)

=2V 60 70 − dB

V

REGd1

drop-out voltage I

REG1

= 550 mA;

VP= 9.5 V; note 6

− 0.4 0.7 V

I

REGm1

current limit V

REG1

> 8.5 V; note 7 0.65 1.2 − A

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

1997 Jul 09 9

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

I

REGsc1

short-circuit current RL≤ 0.5 Ω; note 8 250 800 − mA

Regulator 2 (I

REG2

= 5 mA)

V

REG2

output voltage 0.5 mA ≤ I

REG2

≤ 150 mA 4.75 5.0 5.25 V

0.5 mA ≤ I

REG2

≤ 300 mA 4.75 5.0 5.25 V

7V≤V

P

≤18 V 4.75 5.0 5.25 V

18 V ≤ V

P

≤ 50 V;

I

REG2

≤ 150 mA

4.75 5.0 5.25 V

∆V

REG2

line regulation 6 V ≤ VP≤ 18 V − 250mV

6V≤V

P

≤50 V − 15 75 mV

∆V

REGL2

load regulation 1 mA ≤ I

REG2

≤ 150 mA − 20 50 mV

1mA≤I

REG2

≤ 300 mA −− 100 mV

SVRR2 supply voltage ripple

rejection

f = 3 kHz; V

i(p-p)

= 2 V 60 70 − dB

V

REGd2

drop-out voltage I

REG2

= 100 mA;

VP= 4.75 V; note 6

− 0.4 0.6 V

I

REG2

= 200 mA;

VP= 5.75 V; note 6

− 0.8 1.2 V

I

REG2

= 100 mA;

Vbu= 4.75 V; note 7

− 0.2 0.5 V

I

REG2

= 200 mA;

Vbu= 5.75 V; note 7

− 0.8 1.0 V

I

REGm2

current limit V

REG2

> 4.5 V; note 7 0.32 0.37 − A

I

REGsc2

short-circuit current RL≤ 0.5 Ω; note 8 20 100 − mA

Regulator 3 (I

REG3

= 5 mA)

V

REG3(off)

output voltage off − 1 400 mV

V

REG3

output voltage 1 mA ≤ I

REG3

≤ 400 mA 4.75 5.0 5.25 V

7V≤V

P

≤18 V 4.75 5.0 5.25 V

∆V

REG3

line regulation 7 V ≤ VP≤ 18 V − 250mV

∆V

REGL3

load regulation 1 mA ≤ I

REG3

≤ 400 mA − 20 50 mV

I

q

quiescent current IR3= 400 mA − 15 40 mA

SVRR3 supply voltage ripple

rejection

f

i

= 3 kHz; V

i(p-p)

= 2 V 60 70 − dB

V

REGd3

drop-out voltage I

REG3

= 400 mA;

VP= 5.75 V; note 6

− 1 1.5 V

I

REGm3

current limit V

REG3

> 4.5 V; note 7 0.45 0.70 − A

I

REGsc3

short-circuit current RL≤ 0.5 Ω; note 8 100 400 mA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

1997 Jul 09 10

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

Notes

1. Minimum operating voltage, only if VP has exceeded 6.5 V.

2. The quiescent current is measured in the standby mode. So, the enable inputs of regulators 1 and 3 and the switch
are grounded and R2 = ∞ (see Fig.6).

3. The voltage of the regulator sinks as a result of a VP drop.

4. The rise and fall times are measured with a 10 kΩ pull-up resistor and a 50 pF load capacitor.

5. The delay time depends on the value of the capacitor:

6. The drop-out voltage of regulators 1, 2 and 3 is measured between V

P

and V

REGn

.

7. At current limit, I

REGmn

is held constant (see Fig.4 for behaviour of I

REGmn

).

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

9. The peak current of 300 mA can only be applied for short periods (t < 100 ms).

10. The drop-out voltage of the power switch is measured between VP and Vsw.

11. The maximum output current of the switch is limited to 1.8 A when the supply voltage exceeds 18 V.
A test-mode is built-in. The delay time of the switch will be disabled when a voltage of VP+ 1 V is applied to the switch
enable input.

12. At short circuit, I

sw(sc)

of the power switch is held constant to a lower value than the continuous current after a delay
of at least 10 ms. A test-mode is built-in. The delay time of the switch will be disabled when a voltage of VP+ 1 V is
applied to the switch enable input.

Power switch

V

swd

drop-out voltage Isw= 1 A; note 10 − 0.45 0.7 V

I

sw

= 1.8 A; note 10 − 1.0 1.8 V

I

sw(dc)

continuous current VP= 16 V; VSW= 13.5 V 1.8 2.0 − A

V

swcl

clamping voltage VP≥ 17 V 13.5 15.0 16.0 V

I

swM

peak current VP= 17 V;

notes 11 and 12

3 −− A

V

swfb

fly back voltage
behaviour

Isw= −100 mA − VP+ 3 22 V

I

sw(sc)

short-circuit current VP= 14.4 V; Vsw≤ 1.2 V;

note 12

− 0.8 − A

Back-up switch

I

bu(DC)

continuous current 0.3 0.35 − A

V

bucl

clamping voltage VP≥ 16.7 V −− 16 V

V

r

reverse current VP=0V; Vbu= 12.4 V −− 900 ms

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

t

d

C

I

ch

-------

V

Cth()

× C 7503×10()× (ms)==

1997 Jul 09 11

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

Fig.4 Foldback current protection of the regulators.

a. Regulator 1. b. Regulator 2.

c. Regulator 3.

handbook, halfpage

≥300 mA

MGB755

9 V

2 V

V

REG1

I

REGsc1

I

REG1

I

REGm1

handbook, halfpage

≥50 mA

MGB756

5.0 V

1 V

V

REG2

I

REGsc2

I

REG2

I

REGm2

handbook, halfpage

≥200 mA

MGB757

5.0 V

1 V

V

REG3

I

REGsc3

I

REG3

I

REGm3

Fig.5 Current protection of the power switch.

handbook, halfpage

MGB758

≥3

≥10

1.8

t (ms)

I

sw

(A)

VSW≥ 5V.

1997 Jul 09 12

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

TEST AND APPLICATION INFORMATION
Test information

Fig.6 Test circuit.

(1) Capacitor not required for stability.

handbook, full pagewidth

MGB754

regulator 2

regulator 1

enable input power switch

enable input regulator 3

back-up
capacitor

reset
capacitor

reset
output

C3
10 µF

C2
220 nF

C1

220 nF

C4
10 µF

hold
output

R1

1 kΩ

R3
10 kΩ

R2
10 kΩ

1 kΩ

1 kΩ

5 V

5 V

10 V

regulator 3

C5
10 µF

C6
1 µF

C8
220 nF

C7
47 nF

R

L(sw)

R

L(REG2)

1 kΩ

R

L(REG1)

1 kΩ

R

L(REG3)

V

sw

13

11

2

8

5

3

4

12

9

7

1

10

TDA3605Q

GND

V

P

V

P

V

en(sw)

V

en3

enable input regulator 1

6

V

en1

V

bu

(1)

Application information

N

OISE

Table 1 Noise figures

Note

1. Measured at a bandwidth of 200 kHz.

REGULATOR

NOISE FIGURE (µV)

(1)

at OUTPUT CAPACITOR

10 µF47µF 100 µF

1 − 150 −
2 − 150 −
3 − 200 −

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
means of the output capacitors).

When a high frequency capacitor of 220 nF in parallel with
an electrolytic capacitor of 100 µF is connected directly to
pins 3 and 8 (supply and ground) the noise is minimal.

S

TABILITY

The regulators are made stable with the externally
connected output capacitors. The value of the output
capacitors can be selected by referring to the graphs
illustrated in Figs 7 and 8.

1997 Jul 09 13

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

When an electrolytic capacitor is used the temperature
behaviour of this output capacitor can cause oscillations at
cold temperature.

The following two examples explain how an output
capacitor value is selected.

Example 1

Regulator 1 is made stable with an electrolytic output
capacitor of 220 µF (ESR = 0.15 Ω). At −30 °C the
capacitor value is decreased to 73 µF and the ESR is
increased to 1.1 Ω. The regulator will remain stable at

−30 °C.

Example 2

Regulator 2 is made stable with a 10 µF electrolytic
capacitor (ESR = 3 Ω). At −30 °C the capacitor value is
decreased to 3 µF and the ESR is increased to 23.1 Ω.
The regulator will be unstable at −30 °C (see Fig.7).

Solution

Use a tantalum capacitor of 10 µF or a large electrolytic
capacitor. The use of tantalum capacitors is recommended
to avoid problems with stability at cold temperatures.

Fig.7 Curve for selecting the value of output

capacitor for regulator 2.

handbook, halfpage

2
0

0.22

110

C (µF)

MBK099

4

6

8

10

12

stable region

maximum ESR

minimum ESR

100

R

(Ω)

14

Fig.8 Curve for selecting the value of output

capacitor for regulators 1 and 3.

handbook, halfpage

1

0

110

C (µF)

MBK100

2

3

4

stable region

maximum ESR

minimum ESR

100

R

(Ω)

1997 Jul 09 14

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

PACKAGE OUTLINE

UNIT A e

1

A2bpcD

(1)

E

(1)

Z

(1)

deD

h

LL3m

REFERENCES

OUTLINE
VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC JEDEC EIAJ

mm

17.0

15.5

4.6

4.2

0.75

0.60

0.48

0.38

24.0

23.6

20.0

19.6

10 3.4

v

0.8

12.2

11.8

1.7

e

2

5.08

2.4

1.6

E

h

6

2.00

1.45

2.1

1.8

3.4

3.1

4.3

DIMENSIONS (mm are the original dimensions)

Note

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

12.4

11.0

SOT141-6

0 5 10 mm

scale

Qj

0.25w0.03

x

D

L

E

A

c

A

2

m

L

3

Q

w M

b

p

1

d

D

Z

e

2

e

e

x

h

113

j

E

h

non-concave

view B: mounting base side

92-11-17
95-03-11

DBS13P: plastic DIL-bent-SIL power package; 13 leads (lead length 12 mm)

SOT141-6

v M

B

1997 Jul 09 15

Philips Semiconductors Preliminary specification

Multiple voltage regulator with switch TDA3605Q

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).

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
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

stg max

). If the
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.

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.

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

Philips Semiconductors – a worldwide company

© Philips Electronics N.V. 1997 SCA55
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
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Printed in The Netherlands 547027/1200/02/pp16 Date of release: 1997 Jul 09 Document order number: 9397 750 02236