Data Sheet

INTEGRATED CIRCUITS
DATA SHEET
TDA3618JR
Multiple voltage regulator with
switch and ignition buffers
Product specification
Supersedes data of 2001 Jun 07
File under Integrated Circuits, IC01
2002 Feb 12
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
• Foldback current limit protection for
regulators 1, 2 and 3
FEATURES
General
• Delayed second current limit protection for the power
switch at short-circuit
• Extremely low noise behaviour and good stability with
very small output capacitors
• The regulator outputs and the power switch are
DC short-circuit safe to ground and VP.
• Two VP-state controlled regulators and a power switch
• Regulator 2, reset and ignition buffer operate during
load dump and thermal shutdown
GENERAL DESCRIPTION
• Separate control pins for switching regulator 1,
regulator 3 and the power switch
The TDA3618JR is a multiple output voltage regulator with
a power switch and ignition buffers, intended for use in car
radios with or without a microcontroller. It contains:
• Supply voltage range from −18 to +50 V
• Low reverse current of regulator 2
• Two fixed voltage regulators with foldback current
protection (regulators 1 and 3) and one fixed voltage
regulator (regulator 2) intended to supply a
microcontroller, that also operates during load dump
and thermal shutdown
• Low quiescent current when regulator 1, regulator 3 and
power switch are switched off
• Hold output for low VP
• Hold output for regulators 1 and 3
• A power switch with protection, operated by an enable
input
• Hold output for foldback mode switch
• Hold output for load dump and temperature protection
• Reset and hold outputs that can be used to interface
with the microcontroller; the reset signal can be used to
wake up the microcontroller
• Reset and hold (open-collector) outputs
• Adjustable reset delay time
• A supply pin that can withstand load dump pulses and
negative supply voltages
• High ripple rejection
• Backup capacitor for regulator 2
• Regulator 2, which is switched on at a backup voltage
greater than 6.5 V and off when the output voltage of
regulator 2 drops below 1.9 V
• Two independent ignition buffers, one inverted and with
open-collector output.
• A provision for the 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
Protection
• Reverse polarity safe, down to −18 V
• Able to withstand voltages up to 18 V at the outputs and
the supply line may be short-circuited
• An inverted ignition 1 input with open-collector output
stage
• ESD protected on all pins
• An ignition 2 input Schmitt trigger with push-pull output
stage.
• Thermal protections with hysteresis
• Load dump protection
2002 Feb 12
2
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
ORDERING INFORMATION
PACKAGE
TYPE
NUMBER
NAME
TDA3618JR
DBS17P
DESCRIPTION
VERSION
plastic DIL-bent-SIL (special bent) power package;
17 leads (lead length 12 mm)
SOT475-1
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
VP
supply voltage
operating
11
14.4
18
V
reverse polarity; non-operating
−
−
−18
V
regulator 2 on
2.4
14.4
50
V
jump start for t ≤ 10 minutes
−
−
30
V
load dump protection for t ≤ 50 ms
and tr ≥ 2.5 ms
−
−
50
V
Iq(tot)
total quiescent supply current standby mode
−
310
400
µA
Tj
junction temperature
−
−
150
°C
Voltage regulators
VO(REG1)
output voltage of regulator 1
1 mA ≤ IREG1 ≤ 600 mA
8.5
9.0
9.5
V
VO(REG2)
output voltage of regulator 2
0.5 mA ≤ IREG2 ≤ 150 mA;
VP = 14.4 V
4.75
5.0
5.25
V
VO(REG3)
output voltage of regulator 3
1 mA ≤ IREG3 ≤ 750 mA
4.75
5.0
5.25
V
ISW = 1 A
−
0.45
0.7
V
ISW = 1.8 A
−
1
1.8
V
3
−
−
A
Power switch
Vdrop
IM
2002 Feb 12
drop-out voltage
peak current
3
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
BLOCK DIAGRAM
handbook, full pagewidth
VP
ENSW
1
11
Vth(r) = 7 V, Vth(f) = 4.5 V
POWER SWITCH
17
SW
TEMPERATURE
LOAD DUMP
PROTECTION
&
BACK-UP SWITCH
16
BU
BACK-UP CONTROL
REGULATOR 2
REGULATOR 3
&
15
3
REG2
REG3
4
EN3
TDA3618JR
REGULATOR 1
&
2
REG1
10
EN1
12
≥1
CRES
&
9
5
IGNITION BUFFER
8
7
6
INVERTER
14
GND
Fig.1 Block diagram.
2002 Feb 12
RES
13
IGN2IN
IGN1IN
HOLD
4
MGR928
IGN2OUT
IGN1OUT
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
PINNING
SYMBOL
PIN
DESCRIPTION
VP
1
supply voltage
REG1
2
regulator 1 output
REG3
3
regulator 3 output
EN3
4
enable input regulator 3
IGN2IN
5
IGN1IN
handbook, halfpage
VP
1
REG1
2
REG3
3
ignition 2 input
EN3
4
6
ignition 1 input
IGN2IN
5
IGN1OUT
7
ignition 1 output (active LOW)
IGN1IN
6
IGN2OUT
8
ignition 2 output
9
reset output
IGN1OUT
7
RES
EN1
10
enable input regulator 1
IGN2OUT
8
ENSW
11
enable input power switch
RES
9
HOLD
12
hold output (active LOW)
EN1 10
CRES
13
reset delay capacitor
ENSW 11
GND
14
ground
HOLD 12
REG2
15
regulator 2 output
BU
16
backup output
SW
17
power switch output
heat tab
−
it is strongly recommended to
connect this tab to ground
TDA3618JR
CRES 13
GND 14
REG2 15
BU 16
SW 17
MGR929
Fig.2 Pin configuration.
2002 Feb 12
5
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
The hold output is enabled (LOW) at low battery voltages.
This indicates that it is not possible to get regulator 1 into
regulation when switching it on. The hold function includes
hysteresis to avoid oscillations when the regulator voltage
crosses the hold threshold. Pin HOLD also becomes LOW
when the switch is in foldback protection mode; see Fig.4
for a timing diagram. The hold circuit block diagram is
given in Fig.3.
FUNCTIONAL DESCRIPTION
The TDA3618JR is a multiple output voltage regulator with
a power switch, intended for use in car radios with or
without a microcontroller. Because of the low-voltage
operation of the car radio, low-voltage drop regulators are
used in the TDA3618JR.
Regulator 2 switches on when the backup voltage
exceeds 6.5 V for the first time and switches off again
when the output voltage of regulator 2 falls below 1.9 V
(this is far below an engine start). When regulator 2 is
switched on and its output voltage is within its voltage
range, the reset output is enabled to generate a reset to
the microcontroller. The reset cycle can be extended by an
external capacitor at pin CRES. The 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 power switch can also be controlled by means of a
separate enable input (pin ENSW).
All output pins are fully protected. The regulators are
protected against load dump (regulators 1 and 3 switch off
at supply voltages >18 V) and short-circuit (foldback
current protection).
The switch contains a current protection. However, this
protection is delayed at short-circuit by the reset delay
capacitor. During this time, the output current is limited to
a peak value of at least 3 A and continuous current of 2 A
(VP ≤ 18 V).
The charge of the backup capacitor can be used to supply
regulator 2 for a short period when the supply drops to 0 V
(the time depends on the value of the storage capacitor).
In the normal situation, the voltage on the reset delay
capacitor is approximately 3.5 V (depending on
temperature). The switch output is approximately
VP − 0.4 V. At operational temperature, the switch can
deliver at least 3 A. At high temperature, the switch can
deliver approximately 2 A. During an overload condition or
short-circuit (VSW < VP − 3.7 V), the voltage on the reset
delay capacitor rises 0.6 V above the voltage of
regulator 2. This rise time depends on the capacitor
connected to pin CRES. During this time, the switch can
deliver more than 3 A. The charge current of the reset
delay capacitor is typically 4 µA and the voltage swing
approximately 1.5 V. When regulator 2 is out of regulation
and generates a reset, the switch can only deliver 2 A and
will go into the foldback protection without delay. At supply
voltages >17 V, the switch is clamped at 16 V maximum
(to avoid externally connected circuits being damaged by
an overvoltage) and the switch will switch off at load dump.
The output stages of regulators 1 and 3 have an extremely
low noise behaviour and good stability. These regulators
are stabilized by using small output capacitors.
When both regulator 2 and the supply voltage (VP > 4.5 V)
are available, regulators 1 and 3 can be operated by
means of enable inputs (pins EN1 and EN3 respectively).
Pin HOLD is normally HIGH and is active LOW. Pin HOLD
is connected to an open-collector NPN transistor and must
have an external pull-up resistor to operate. The hold
output is controlled by a low voltage detection circuit
which, when activated, pulls the warning output LOW
(enabled). The detection outputs of the regulators are
connected to an OR gate inside the IC such that the hold
output is activated (goes LOW) when the regulator
voltages of regulator 1 and/or regulator 3 are out of
regulation for any reason. Each regulator enable input
controls its own detection circuit, such that if a regulator is
disabled or switched off, the detection circuit for that
regulator is disabled.
Interfacing with the microcontroller (simple full or semi
on/off logic applications) can be realized with two
independent ignition Schmitt triggers and ignition output
buffers (one open-collector and one push-pull output).
Ignition 1 output is inverted.
The hold circuit is also controlled by the temperature and
load dump protection. Activating the temperature or load
dump protection causes a hold (LOW) during the time the
protection is activated. When all regulators are switched
off, pin HOLD is controlled by the battery line (pin VP),
temperature protection and load dump protection.
2002 Feb 12
The timing diagrams are shown in Figs 4 and 5.
6
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
handbook, full pagewidth
VP
TDA3618JR
low battery
detector
1
Vref1
TDA3618JR
output stage
Vref2
2
REG1
&
enable
EN1
out of
regulation
detector
10
OR
REGULATOR 1
output stage
3
OR
enable
EN3
out of
regulation
detector
4
REGULATOR 3
12
buffer
TEMPERATURE
PROTECTION
>150 °C
LOAD DUMP
V16
FOLDBACK
MODE
MGL792
Fig.3 Block diagram of the hold circuit.
2002 Feb 12
7
REG3
HOLD
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
handbook, full pagewidth
VP
load dump
7.0 V
4.5 V
≤50 V
ignition 1 ≥3.25 V
input
≤1.1 V
≥−100 V
5.0 V
ignition 1
output
0.2 V
Schmitt trigger ignition 1
load dump
VP
≤50 V
≥2.2 V
ignition 2
input
≤2.0 V
≥−100 V
ignition 2
output
5.0 V
0.2 V
Schmitt trigger ignition 2
VP
>1.8 V
enable
regulator 3 <1.3 V
>1.8 V
enable
regulator 1 <1.3 V
regulator 3
regulator 1
temperature active
protection
150 °C passive
HOLD
HIGH
LOW
Hold output
Fig.4 Timing diagram of ignition Schmitt triggers and hold output.
2002 Feb 12
8
MGR930
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
handbook, full pagewidth
TDA3618JR
load dump
VP
VBU
6.5 V
5.4 V
regulator 2
5.0 V
1.9 V
0V
reset
delay
capacitor
5.0 V
3.0 V
0V
reset
5.0 V
Backup Schmitt trigger and reset behaviour
load dump
18 V
VP
10.4 V
7.0 V
4.0 V
>1.8 V
enable
regulator 1 <1.3 V
9V
regulator 1
0V
>1.8 V
enable
regulator 3 <1.3 V
5.0 V
regulator 3
0V
VP and enable Schmitt trigger
load dump
16.9 V
VP
7.0 V
4.0 V
enable
power
switch
>1.8 V
<1.3 V
16 V
power
switch
output
0V
Power switch behaviour
Fig.5 Timing diagram of regulators and power switch.
2002 Feb 12
9
MGK610
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
SYMBOL
VP
PARAMETER
supply voltage
CONDITIONS
MIN.
MAX.
UNIT
operating
−
18
V
reverse polarity; non-operating
−
−18
V
jump start; t ≤ 10 minutes
−
30
V
load dump protection; t ≤ 50 ms; tr ≥ 2.5 ms
−
50
V
−
62
W
non-operating
−55
+150
°C
Ptot
total power dissipation
Tstg
storage temperature
Tamb
ambient temperature
operating
−40
+85
°C
Tj
junction temperature
operating
−40
+150
°C
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
VALUE
UNIT
Rth(j-c)
thermal resistance from junction to case
2
K/W
Rth(j-a)
thermal resistance from junction to ambient in free air
50
K/W
2002 Feb 12
10
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
CHARACTERISTICS
VP = 14.4 V; Tamb = 25 °C; see Fig.8; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
VP
Iq(tot)
supply voltages
total quiescent supply
current
operating
11
regulator 2 on; note 1
2.4
14.4
18
V
14.4
18
V
jump start; t ≤ 10 minutes −
−
30
V
load dump protection;
t ≤ 50 ms; tr ≥ 2.5 ms
−
−
50
V
VP = 12.4 V;
IREG2 = 0.1 mA; note 2
−
310
400
µA
VP = 14.4 V;
IREG2 = 0.1 mA; note 2
−
315
−
µA
Schmitt trigger for regulator 1, regulator 3 and the power switch
Vth(r)
rising threshold voltage
6.5
7.0
7.5
V
Vth(f)
falling threshold voltage
4.0
4.5
5.0
V
Vhys
hysteresis voltage
−
2.5
−
V
6.0
6.5
7.1
V
Schmitt trigger for regulator 2
Vth(r)
rising threshold voltage
Vth(f)
falling threshold voltage
1.7
1.9
2.3
V
Vhys
hysteresis voltage
−
4.6
−
V
Schmitt trigger for enable inputs (regulator 1, regulator 3 and the power switch)
Vth(r)
rising threshold voltage
1.4
1.8
2.4
V
Vth(f)
falling threshold voltage
0.9
1.3
1.9
V
Vhys
hysteresis voltage
IREG = ISW = 1 mA
−
0.5
−
V
ILI
input leakage current
VEN = 5 V
1
5
10
µA
VO(REG2) − 0.15
VO(REG2) − 0.1
V
Reset trigger level of regulator 2
Vth(r)
rising threshold voltage
VP rising; IREG1 = 50 mA; 4.5
note 3
Schmitt triggers for HOLD output
Vth(r)(REG1) rising threshold voltage
of regulator 1
VP rising; note 3
−
VO(REG1) − 0.15
VO(REG1) − 0.075 V
Vth(f)(REG1) falling threshold voltage
of regulator 1
VP falling; note 3
8.1
VO(REG1) − 0.35
−
V
−
0.2
−
V
Vhys(REG1)
hysteresis voltage due
to regulator 1
Vth(r)(REG3) rising threshold voltage
of regulator 3
VP rising; note 3
−
VO(REG3) − 0.15
VO(REG3) − 0.075 V
Vth(f)(REG3) falling threshold voltage
of regulator 3
VP falling; note 3
4.1
VO(REG3) − 0.35
−
V
−
0.2
−
V
Vhys(REG3)
2002 Feb 12
hysteresis voltage due
to regulator 3
11
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
SYMBOL
PARAMETER
TDA3618JR
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Vth(r)(VP)
rising threshold voltage
of supply voltage
VEN = 0 V
9.1
9.7
10.3
V
Vth(f)(VP)
falling threshold voltage
of supply voltage
VEN = 0 V
9.0
9.4
9.8
V
Vhys(VP)
hysteresis voltage of
supply voltage
VEN = 0 V
−
0.3
−
V
Reset and hold buffer
Isink(L)
LOW-level sink current
VRES ≤ 0.8 V;
VHOLD ≤ 0.8 V
2
−
−
mA
ILO
output leakage current
VP = 14.4 V; VRES = 5 V;
VHOLD = 5 V
−
0.1
5
µA
tr
rise time
note 4
−
7
50
µs
tf
fall time
note 4
−
1
50
µs
Reset delay
Ich
charge current
2
4
8
µA
Idch
discharge current
500
800
−
µA
Vth(r)(RES)
rising voltage threshold
reset signal
2.5
3.0
3.5
V
td(RES)
delay time reset signal
Vth(r)(SW)
rising voltage threshold
switch foldback
protection
td(SW)
delay time switch
foldback protection
C = 47 nF; note 5
20
35
70
ms
−
VO(REG2)
−
V
8
17.6
40
ms
−
1
400
mV
1 mA ≤ IREG1 ≤ 600 mA
8.5
9.0
9.5
V
C = 47 nF; note 6
Regulator 1 (IREG1 = 5 mA; unless otherwise specified)
VO(off)
output voltage off
VO(REG1)
output voltage
12 V ≤ VP ≤ 18 V
8.5
9.0
9.5
V
∆Vline
line regulation
12 V ≤ VP ≤ 18 V
−
2
75
mV
∆Vload
load regulation
1 mA ≤ IREG1 ≤ 600 mA
−
20
100
mV
Iq
quiescent current
IREG1 = 600 mA
−
25
60
mA
SVRR
supply voltage ripple
rejection
fi = 3 kHz; Vi(p-p) = 2 V
60
70
−
dB
Vdrop
drop-out voltage
IREG1 = 550 mA;
VP = 9.5 V; note 7
−
0.4
0.7
V
Ilim
current limit
VO(REG1) > 8.5 V; note 8
0.65
1.2
−
A
Isc
short-circuit current
RL ≤ 0.5 Ω; note 9
250
800
−
mA
Regulator 2 (IREG2 = 5 mA; unless otherwise specified)
VO(REG2)
2002 Feb 12
output voltage
0.5 mA ≤ IREG2 ≤ 300 mA 4.75
5.0
5.25
V
8 V ≤ VP ≤ 18 V
4.75
5.0
5.25
V
18 V ≤ VP ≤ 50 V;
IREG2 ≤ 150 mA
4.75
5.0
5.25
V
12
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
SYMBOL
PARAMETER
∆Vline
line regulation
∆Vload
load regulation
TDA3618JR
CONDITIONS
6 V ≤ VP ≤ 18 V
MIN.
−
TYP.
2
MAX.
50
UNIT
mV
6 V ≤ VP ≤ 50 V
−
15
75
mV
1 mA ≤ IREG2 ≤ 150 mA
−
20
50
mV
1 mA ≤ IREG2 ≤ 300 mA
−
−
100
mV
SVRR
supply voltage ripple
rejection
f = 3 kHz; Vi(p-p) = 2 V
60
70
−
dB
Vdrop
drop-out voltage
IREG2 = 100 mA;
VP = 4.75 V; note 7
−
0.4
0.6
V
IREG2 = 200 mA;
VP = 5.75 V; note 7
−
0.8
1.2
V
IREG2 = 100 mA;
VBU = 4.75 V; note 10
−
0.2
0.5
V
IREG2 = 200 mA;
VBU = 5.75 V; note 10
−
0.8
1.0
V
Ilim
current limit
VO(REG2) > 4.5 V; note 8
0.32
0.37
−
A
Isc
short-circuit current
RL ≤ 0.5 Ω; note 9
20
100
−
mA
−
1
400
mV
Regulator 3 (IREG3 = 5 mA; unless otherwise specified)
VO(off)
output voltage off
VO(REG3)
output voltage
1 mA ≤ IREG3 ≤ 750 mA
4.75
5.0
5.25
V
7 V ≤ VP ≤ 18 V
4.75
5.0
5.25
V
∆Vline
line regulation
7 V ≤ VP ≤ 18 V
−
2
50
mV
∆Vload
load regulation
1 mA ≤ IREG3 ≤ 750 mA
−
20
100
mV
Iq
quiescent current
IREG3 = 750 mA
−
19
45
mA
SVRR
supply voltage ripple
rejection
fi = 3 kHz; Vi(p-p) = 2 V
60
70
−
dB
Vdrop
drop-out voltage
IREG3 = 500 mA;
VP = 5.75 V; note 7
−
1
1.5
V
Ilim
current limit
VO(REG3) > 4.5 V; note 8
0.80
0.90
−
A
Isc
short-circuit current
RL ≤ 0.5 Ω; note 9
100
400
−
mA
ISW = 1 A; VP = 13.5 V;
note 11
−
0.45
0.70
V
ISW = 1.8 A; VP = 13.5 V;
note 11
−
1.0
1.8
V
Power switch
Vdrop
drop-out voltage
Idc
continuous current
VP = 16 V; VSW = 13.5 V
1.8
2.0
−
A
Vclamp
clamping voltage
VP ≥ 17 V
13.5
15.0
16.0
V
IM
peak current
VP = 17 V;
notes 6, 12 and 13
3
−
−
A
Vfb
flyback voltage
behaviour
ISW = −100 mA
−
VP + 3
22
V
Isc
short-circuit current
VP = 14.4 V;
VSW < 1.2 V; note 13
−
0.8
−
A
2002 Feb 12
13
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
SYMBOL
PARAMETER
TDA3618JR
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Backup switch
Idc
continuous current
0.3
0.35
−
A
Vclamp
clamping voltage
VP ≥ 16.7 V
−
−
16
V
Ir
reverse current
VP = 0 V; VBU = 12.4 V
−
−
−900
µA
Schmitt trigger for enable input of ignition 1
Vth(r)
rising threshold voltage
of ignition 1 input
2.75
3.25
3.75
V
Vth(f)
falling threshold voltage
of ignition 1 input
0.8
−
1.3
V
Vhys
hysteresis voltage
1.5
−
−
V
ILI
input leakage current
VIGN1IN = 5 V
−
−
1.0
µA
II(clamp)
input clamping current
VIGN1IN > 50 V
−
−
50
mA
VIH(clamp)
HIGH-level input
clamping voltage
VP
−
50
V
VIL(clamp)
LOW-level input
clamping voltage
−0.6
−
0
V
6.5
7.0
7.5
V
note 14
4.0
4.5
5.0
V
Schmitt trigger for power supply of ignition 1
Vth(r)
rising threshold voltage
Vth(f)
falling threshold voltage
Ignition 1 buffer
VOL
LOW-level output
voltage
IIGN1OUT = 0 mA
0
0.2
0.8
V
VOH
HIGH-level output
voltage
IIGN1OUT = 0 mA
4.5
5.0
5.25
V
IOL
LOW-level output
current
VIGN1OUT ≤ 0.8 V
0.45
0.8
−
mA
ILO
output leakage current
VIGN1OUT = 5 V;
VIGN1IN = 0 V
−
−
1.0
µA
tPLH
LOW-to-HIGH
propagation time
VIGN1IN falling from
3.75 to 0.8 V
−
−
500
µs
tPHL
HIGH-to-LOW
propagation time
VIGN1IN rising from
0.8 to 3.75 V
−
−
500
µs
Schmitt trigger for enable input of ignition 2
Vth(r)
rising threshold voltage
of ignition 2 input
VP > 3.5 V
1.9
2.2
2.5
V
Vth(f)
falling threshold voltage
of ignition 2 input
VP > 3.5 V
1.7
2.0
2.3
V
Vhys
hysteresis voltage
VP > 3.5 V
0.1
0.2
0.5
V
ILI
input leakage current
VIGN2IN = 5 V
−
−
1.0
µA
II(clamp)
input clamp current
VIGN2IN > 50 V
−
−
50
mA
VIH(clamp)
HIGH-level input
clamping voltage
VP
−
50
V
2002 Feb 12
14
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
SYMBOL
VIL(clamp)
PARAMETER
TDA3618JR
CONDITIONS
LOW-level input
clamping voltage
MIN.
TYP.
MAX.
UNIT
−0.6
−
0
V
Ignition 2 buffer
VOL
LOW-level output
voltage
IIGN2OUT = 0 mA
0
0.2
0.8
V
VOH
HIGH-level output
voltage
IIGN2OUT = 0 mA
4.5
5.0
5.25
V
IOL
LOW-level output
current
VIGN2OUT ≤ 0.8 V
0.45
0.8
−
mA
IOH
HIGH-level output
current
VIGN2OUT ≥ 4.5 V
−0.45 −2.0
−
mA
ILO
output leakage current
(source)
VIGN2OUT = 5 V;
VIGN2IN = 5 V
−
−
1.0
µA
tPLH
LOW-to-HIGH
propagation time
VIGN2IN rising from
1.7 to 2.5 V
−
−
500
µs
tPHL
HIGH-to-LOW
propagation time
VIGN2IN falling from
2.5 to 1.7 V
−
−
500
µs
Notes
1. Minimum operating voltage, only if VP has exceeded 6.5 V.
2. The quiescent current is measured in the standby mode with pins EN1, EN2 and ENSW connected to ground and
RL(REG2) = ∞; (see Fig.8).
3. The voltage of the regulator drops 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 connected to pin CRES:
C
3
t d ( RES ) = ------- × V th(r)(RES) = C × ( 750 × 10 ) [s]
I ch
6. The delay time depends on the value of the capacitor connected to pin CRES:
C
3
t d(RES) = ------- × ( V O(REG2) – 3.5 ) = C × ( 375 × 10 ) [s]
I ch
7. The drop-out voltage of regulators 1, 2 and 3 is measured between pins VP and REGn.
8. At current limit, Ilim is held constant (see Fig.6 for the behaviour of Ilim).
9. The foldback current protection limits the dissipated power at short-circuit (see Fig.6).
10. The drop-out voltage is measured between pins BU and REG2.
11. The drop-out voltage of the power switch is measured between pins VP and SW.
12. The maximum output current of the power 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 power switch is disabled when a voltage of VP + 1 V is applied to the
switch-enable input.
13. At short-circuit, Isc 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 is disabled when a voltage of VP + 1 V is applied
to the switch-enable input.
14. VIGN1OUT = LOW for VIGN1IN > 1.2 V or VEN1 > 1.3 V or VEN3 > 1.3 V or VENSW > 1.3 V.
2002 Feb 12
15
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
handbook, halfpage
TDA3618JR
MBK946
9.0
VO(REG1)
handbook, halfpage
VO(REG2)
(V)
(V)
MGL598
5.0
Isc
IREG1 (A)
Isc
Ilim
Ilim
IREG2 (A)
a. Regulator 1.
handbook, halfpage
VO(REG3)
(V)
MGL599
5.0
Isc
Ilim
IREG3 (A)
b. Regulator 2.
Fig.6 Foldback current protection of the regulators.
handbook, full pagewidth
MGU349
VSW
(V)
VP − 3.3
delayed
generates
hold
not
delayed
2VBE
>1.8
1
>3
ISW (A)
Fig.7 Current protection of the power switch.
2002 Feb 12
16
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
TEST AND APPLICATION INFORMATION
Test information
handbook, full pagewidth
VP
VP
C1
220 nF
17
1
SW
C2
220 nF
(1)
ENSW
15
11
RL(SW)
12 kΩ
5V
REG2
C3
10 µF
VENSW
EN1
10
2
REG1
RL(REG2)
5 kΩ
10 V
C4
10 µF
VEN1
EN3
REG3
4
RL(REG1)
10 kΩ
5V
3
C5
10 µF
VEN3
RL(REG3)
5 kΩ
TDA3618JR
CRES
13
C7
47 nF
9
BU
VBU
C8
100 µF
10 kΩ
IGN1IN
10 kΩ
6
7
5
8
HOLD
IGN1OUT
C9
1 nF
R6
VIGN2
12
(2)
R5
VIGN1
16
RES
IGN2IN
C10
1 nF
IGN2OUT
14
ground
MGR932
(1) A minimum supply line capacitor of 220 nF on VP is required for stability.
(2) A minimum backup capacitance of 1 µF is required for stability.
(3) Capacitors represent typical input capacitance of CMOS logic connected to reset and hold outputs.
Fig.8 Test circuit.
2002 Feb 12
17
R2
10 kΩ
(3)
C6
50 pF
(3)
C11
50 pF
R3
10 kΩ
R4
10 kΩ
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
Application information
The two examples show how an output capacitor value is
selected.
NOISE
Table 1
Example 1
Noise figures
Regulators 1 and 3 are stabilized with an electrolytic
output capacitor of 220 µF (ESR = 0.15 Ω).
At Tamb = −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 Tamb = −30 °C (see Fig.9).
NOISE FIGURE (µV)(1)
REGULATOR
Co = 10 µF
Co = 47 µF
Co = 100 µF
1
170
130
110
2
180
120
100
3
100
70
65
Example 2
Note
Regulator 2 is stabilized with a 10 µF electrolytic capacitor
(ESR = 3 Ω). At Tamb = −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 Tamb = −30 °C (see
Fig.10).
1. Measured at a bandwidth of 200 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 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 1 and 14 (supply
and ground), the noise is minimal.
Solution
To avoid problems with stability at low temperatures, the
use of tantalum capacitors is recommended. Use a
tantalum capacitor of 10 µF or a larger electrolytic
capacitor.
STABILITY
The regulators are stabilized with the externally connected
output capacitors. The output capacitors can be selected
using the graphs of Figs 9 and 10. When an electrolytic
capacitor is used, the temperature behaviour of this output
capacitor can cause oscillations at a low temperature.
MGK612
handbook, halfpage
20
handbook, halfpage
R
(Ω)
R
(Ω)
MGK613
14
maximum ESR
12
15
10
maximum ESR
8
10
stable region
6
5
4
stable region
2
0
0.1
Fig.9
1
10
C (µF)
100
0.22
Curve for selecting the value of output
capacitor for regulators 1 and 3.
2002 Feb 12
minimum ESR
0
1
10
C (µF)
100
Fig.10 Curve for selecting the value of output
capacitor for regulator 2.
18
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
PACKAGE OUTLINE
DBS17P: plastic DIL-bent-SIL (special bent) power package; 17 leads (lead length 12 mm)
SOT475-1
non-concave
Dh
x
D
Eh
view B: mounting base side
d
A2
B
j
E
A
L3
L
1
Q
17
e1
Z
bp
e
c
w M
0
5
v M
e2
m
10 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
A2
bp
c
D (1)
d
Dh
E (1)
e
mm
17.0
15.5
4.6
4.4
0.75
0.60
0.48
0.38
24.0
23.6
20.0
19.6
10
12.2
11.8
2.54
e1
e2
1.27 5.08
Eh
j
L
L3
m
Q
v
w
x
Z (1)
6
3.4
3.1
12.4
11.0
2.4
1.6
4.3
2.1
1.8
0.8
0.4
0.03
2.00
1.45
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
ISSUE DATE
97-05-20
99-12-17
SOT475-1
2002 Feb 12
EUROPEAN
PROJECTION
19
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
The total contact time of successive solder waves must not
exceed 5 seconds.
SOLDERING
Introduction to soldering through-hole mount
packages
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 (Tstg(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.
This text gives a brief insight to wave, dip and manual
soldering. A more in-depth account of soldering ICs can be
found in our “Data Handbook IC26; Integrated Circuit
Packages” (document order number 9398 652 90011).
Wave soldering is the preferred method for mounting of
through-hole mount IC packages on a printed-circuit
board.
Manual soldering
Apply the soldering iron (24 V or less) to the lead(s) of the
package, either 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.
Soldering by dipping or by solder wave
The maximum permissible temperature of the solder is
260 °C; solder at this temperature must not be in contact
with the joints for more than 5 seconds.
Suitability of through-hole mount IC packages for dipping and wave soldering methods
SOLDERING METHOD
PACKAGE
DIPPING
DBS, DIP, HDIP, SDIP, SIL
WAVE
suitable(1)
suitable
Note
1. For SDIP packages, the longitudinal axis must be parallel to the transport direction of the printed-circuit board.
2002 Feb 12
20
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
DATA SHEET STATUS
DATA SHEET STATUS(1)
PRODUCT
STATUS(2)
DEFINITIONS
Objective data
Development
This data sheet contains data from the objective specification for product
development. Philips Semiconductors reserves the right to change the
specification in any manner without notice.
Preliminary data
Qualification
This data sheet contains data from the preliminary specification.
Supplementary data will be published at a later date. Philips
Semiconductors reserves the right to change the specification without
notice, in order to improve the design and supply the best possible
product.
Product data
Production
This data sheet contains data from the product specification. Philips
Semiconductors reserves the right to make changes at any time in order
to improve the design, manufacturing and supply. Changes will be
communicated according to the Customer Product/Process Change
Notification (CPCN) procedure SNW-SQ-650A.
Notes
1. Please consult the most recently issued data sheet before initiating or completing a design.
2. The product status of the device(s) described in this data sheet may have changed since this data sheet was
published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com.
DEFINITIONS
DISCLAIMERS
Short-form specification  The data in a short-form
specification is extracted from a full data sheet with the
same type number and title. For detailed information see
the relevant data sheet or data handbook.
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
Semiconductors customers using or selling these products
for use in such applications do so at their own risk and
agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Limiting values definition  Limiting values given are in
accordance with the Absolute Maximum Rating System
(IEC 60134). 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.
Right to make changes  Philips Semiconductors
reserves the right to make changes, without notice, in the
products, including circuits, standard cells, and/or
software, described or contained herein in order to
improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for
the use of any of these products, conveys no licence or title
under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that
these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified.
Application information  Applications that are
described herein for any of these products are for
illustrative purposes only. Philips Semiconductors make
no representation or warranty that such applications will be
suitable for the specified use without further testing or
modification.
2002 Feb 12
21
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
NOTES
2002 Feb 12
22
Philips Semiconductors
Product specification
Multiple voltage regulator with
switch and ignition buffers
TDA3618JR
NOTES
2002 Feb 12
23
Philips Semiconductors – a worldwide company
Contact information
For additional information please visit http://www.semiconductors.philips.com.
Fax: +31 40 27 24825
For sales offices addresses send e-mail to: [email protected]
SCA74
© Koninklijke Philips Electronics N.V. 2002
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
753503/04/pp24
Date of release: 2002
Feb 12
Document order number:
9397 750 09296
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