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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
FEATURES General * Extremely low noise behaviour and good stability with very small output capacitors * Two VP-state controlled regulators and a power switch * Regulator 2, reset and ignition buffer operate during load dump and thermal shutdown * Separate control pins for switching regulator 1, regulator 3 and the power switch * Supply voltage range from -18 to +50 V * Low reverse current of regulator 2 * 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 * Hold output for foldback mode switch * Hold output for load dump and temperature protection * Reset and hold (open-collector) outputs * Adjustable reset delay time * High ripple rejection * Backup capacitor for regulator 2 * Two independent ignition buffers, one inverted and with open-collector output. 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 * ESD protected on all pins * Thermal protections with hysteresis * Load dump protection
TDA3618JR
* 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-circuit safe to ground and VP. GENERAL DESCRIPTION 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: * 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 * A power switch with protection, operated by an enable input * Reset and hold outputs that can be used to interface with the microcontroller; the reset signal can be used to wake up the microcontroller * A supply pin that can withstand load dump pulses and negative supply voltages * 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 * 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 * An inverted ignition 1 input with open-collector output stage * An ignition 2 input Schmitt trigger with push-pull output stage.
2002 Feb 12
2
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
ORDERING INFORMATION TYPE NUMBER TDA3618JR PACKAGE NAME DBS17P DESCRIPTION plastic DIL-bent-SIL (special bent) power package; 17 leads (lead length 12 mm)
TDA3618JR
VERSION SOT475-1
QUICK REFERENCE DATA SYMBOL Supply VP supply voltage operating reverse polarity; non-operating regulator 2 on jump start for t 10 minutes load dump protection for t 50 ms and tr 2.5 ms Iq(tot) Tj VO(REG1) VO(REG2) VO(REG3) Power switch Vdrop IM drop-out voltage peak current ISW = 1 A ISW = 1.8 A - - 3 0.45 1 - 0.7 1.8 - V V A total quiescent supply current standby mode junction temperature 1 mA IREG1 600 mA 0.5 mA IREG2 150 mA; VP = 14.4 V 1 mA IREG3 750 mA 11 - 2.4 - - - - 8.5 4.75 4.75 14.4 - 14.4 - - 310 - 9.0 5.0 5.0 18 -18 50 30 50 400 150 V V V V V A C V V V PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Voltage regulators output voltage of regulator 1 output voltage of regulator 2 output voltage of regulator 3 9.5 5.25 5.25
2002 Feb 12
3
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
BLOCK DIAGRAM
TDA3618JR
handbook, full pagewidth
VP
1
Vth(r) = 7 V, Vth(f) = 4.5 V
POWER SWITCH
17
SW
ENSW
11
&
TEMPERATURE LOAD DUMP PROTECTION
BACK-UP SWITCH
16
BU
BACK-UP CONTROL
REGULATOR 2
15
REG2
&
4 EN3
REGULATOR 3
3
REG3
TDA3618JR
REGULATOR 1 2 REG1
&
10 EN1
12
HOLD
1
&
9
RES
CRES IGN2IN
13 5 IGNITION BUFFER 8 7 6 INVERTER IGN2OUT IGN1OUT
IGN1IN
14 GND
MGR928
Fig.1 Block diagram.
2002 Feb 12
4
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
PINNING SYMBOL VP REG1 REG3 EN3 IGN2IN IGN1IN IGN1OUT IGN2OUT RES EN1 ENSW HOLD CRES GND REG2 BU SW heat tab PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 - DESCRIPTION supply voltage regulator 1 output regulator 3 output enable input regulator 3 ignition 2 input ignition 1 input ignition 1 output (active LOW) ignition 2 output reset output enable input regulator 1 enable input power switch hold output (active LOW) reset delay capacitor ground regulator 2 output backup output power switch output it is strongly recommended to connect this tab to ground
REG2 15 BU 16 SW 17
MGR929
TDA3618JR
handbook, halfpage
VP REG1 REG3 EN3 IGN2IN IGN1IN IGN1OUT IGN2OUT RES
1 2 3 4 5 6 7 8 9
TDA3618JR
EN1 10 ENSW 11 HOLD 12 CRES 13 GND 14
Fig.2 Pin configuration.
2002 Feb 12
5
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
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 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). 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. 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.
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. 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). 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 A 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. 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 timing diagrams are shown in Figs 4 and 5.
2002 Feb 12
6
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
TDA3618JR
handbook, full pagewidth
VP
1 Vref1
low battery detector
TDA3618JR
output stage 2
Vref2
REG1
&
out of regulation detector
enable EN1 10
OR
REGULATOR 1 output stage 3
REG3
OR
out of regulation detector REGULATOR 3
12 buffer
HOLD
enable EN3 4
TEMPERATURE PROTECTION >150 C
LOAD DUMP
V16 FOLDBACK MODE
MGL792
Fig.3 Block diagram of the hold circuit.
2002 Feb 12
7
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
TDA3618JR
handbook, full pagewidth
load dump
7.0 V 4.5 V
VP
50 V
ignition 1 3.25 V input
1.1 V
-100 V
ignition 1 output
5.0 V 0.2 V
Schmitt trigger ignition 1
load dump VP
50 V
ignition 2 input
2.2 V 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
MGR930
Fig.4 Timing diagram of ignition Schmitt triggers and hold output.
2002 Feb 12
8
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
TDA3618JR
handbook, full pagewidth
load dump
VP
VBU
6.5 V 5.4 V
regulator 2 reset delay capacitor reset
5.0 V 1.9 V 0V 5.0 V 3.0 V 0V 5.0 V
Backup Schmitt trigger and reset behaviour
load dump
18 V 10.4 V 7.0 V 4.0 V
VP
>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 power switch output
>1.8 V <1.3 V 16 V
0V
Power switch behaviour
MGK610
Fig.5 Timing diagram of regulators and power switch.
2002 Feb 12
9
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). SYMBOL VP PARAMETER supply voltage operating reverse polarity; non-operating jump start; t 10 minutes load dump protection; t 50 ms; tr 2.5 ms Ptot Tstg Tamb Tj total power dissipation storage temperature ambient temperature junction temperature non-operating operating operating CONDITIONS - - - - - -55 -40 -40 MIN.
TDA3618JR
MAX. 18 -18 30 50 62 +150 +85 +150 V V V V W
UNIT
C C C
THERMAL CHARACTERISTICS SYMBOL Rth(j-c) Rth(j-a) PARAMETER thermal resistance from junction to case thermal resistance from junction to ambient in free air CONDITIONS VALUE 2 50 UNIT K/W K/W
2002 Feb 12
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Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
CHARACTERISTICS VP = 14.4 V; Tamb = 25 C; see Fig.8; unless otherwise specified. SYMBOL Supplies VP supply voltages operating regulator 2 on; note 1 load dump protection; t 50 ms; tr 2.5 ms Iq(tot) total quiescent supply current VP = 12.4 V; IREG2 = 0.1 mA; note 2 VP = 14.4 V; IREG2 = 0.1 mA; note 2 Vth(r) Vth(f) Vhys Vth(r) Vth(f) Vhys Vth(r) Vth(f) Vhys ILI Vth(r) rising threshold voltage falling threshold voltage hysteresis voltage 11 2.4 - - - 14.4 14.4 - - 310 315 18 18 30 50 400 - PARAMETER CONDITIONS MIN. TYP.
TDA3618JR
MAX.
UNIT
V V V V A A
jump start; t 10 minutes -
Schmitt trigger for regulator 1, regulator 3 and the power switch 6.5 4.0 - 6.0 1.7 - 1.4 0.9 IREG = ISW = 1 mA VEN = 5 V - 1 7.0 4.5 2.5 7.5 5.0 - 7.1 2.3 - 2.4 1.9 - 10 VO(REG2) - 0.1 V V V
Schmitt trigger for regulator 2 rising threshold voltage falling threshold voltage hysteresis voltage 6.5 1.9 4.6 V V V
Schmitt trigger for enable inputs (regulator 1, regulator 3 and the power switch) rising threshold voltage falling threshold voltage hysteresis voltage input leakage current 1.8 1.3 0.5 5 VO(REG2) - 0.15 V V V A V
Reset trigger level of regulator 2 rising threshold voltage VP rising; IREG1 = 50 mA; 4.5 note 3 - 8.1 - VP rising; note 3 VP falling; note 3 - 4.1 -
Schmitt triggers for HOLD output Vth(r)(REG1) rising threshold voltage of regulator 1 Vth(f)(REG1) falling threshold voltage of regulator 1 Vhys(REG1) hysteresis voltage due to regulator 1 VP rising; note 3 VP falling; note 3 VO(REG1) - 0.15 VO(REG1) - 0.35 0.2 VO(REG3) - 0.15 VO(REG3) - 0.35 0.2 VO(REG1) - 0.075 V - - V V
Vth(r)(REG3) rising threshold voltage of regulator 3 Vth(f)(REG3) falling threshold voltage of regulator 3 Vhys(REG3) hysteresis voltage due to regulator 3
VO(REG3) - 0.075 V - - V V
2002 Feb 12
11
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
SYMBOL Vth(r)(VP) Vth(f)(VP) Vhys(VP) PARAMETER rising threshold voltage of supply voltage falling threshold voltage of supply voltage hysteresis voltage of supply voltage CONDITIONS VEN = 0 V VEN = 0 V VEN = 0 V MIN. 9.1 9.0 - 9.7 9.4 0.3 TYP. 10.3 9.8 -
TDA3618JR
MAX.
UNIT V V V
Reset and hold buffer Isink(L) ILO tr tf Ich Idch Vth(r)(RES) td(RES) Vth(r)(SW) LOW-level sink current output leakage current rise time fall time VRES 0.8 V; VHOLD 0.8 V VP = 14.4 V; VRES = 5 V; VHOLD = 5 V note 4 note 4 2 - - - 2 500 2.5 C = 47 nF; note 5 20 - - 0.1 7 1 - 5 50 50 mA A s s A A V ms V
Reset delay charge current discharge current rising voltage threshold reset signal delay time reset signal rising voltage threshold switch foldback protection delay time switch foldback protection C = 47 nF; note 6 4 800 3.0 35 VO(REG2) 8 - 3.5 70 -
td(SW)
8
17.6
40
ms
Regulator 1 (IREG1 = 5 mA; unless otherwise specified) VO(off) VO(REG1) Vline Vload Iq SVRR Vdrop Ilim Isc output voltage off output voltage line regulation load regulation quiescent current supply voltage ripple rejection drop-out voltage current limit short-circuit current 1 mA IREG1 600 mA 12 V VP 18 V 12 V VP 18 V 1 mA IREG1 600 mA IREG1 = 600 mA fi = 3 kHz; Vi(p-p) = 2 V IREG1 = 550 mA; VP = 9.5 V; note 7 VO(REG1) > 8.5 V; note 8 RL 0.5 ; note 9 - 8.5 8.5 - - - 60 - 0.65 250 1 9.0 9.0 2 20 25 70 0.4 1.2 800 400 9.5 9.5 75 100 60 - 0.7 - - mV V V mV mV mA dB V A mA
Regulator 2 (IREG2 = 5 mA; unless otherwise specified) VO(REG2) output voltage 0.5 mA IREG2 300 mA 4.75 8 V VP 18 V 18 V VP 50 V; IREG2 150 mA 2002 Feb 12 12 4.75 4.75 5.0 5.0 5.0 5.25 5.25 5.25 V V V
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
SYMBOL Vline Vload SVRR Vdrop PARAMETER line regulation load regulation supply voltage ripple rejection drop-out voltage CONDITIONS 6 V VP 18 V 6 V VP 50 V 1 mA IREG2 150 mA 1 mA IREG2 300 mA f = 3 kHz; Vi(p-p) = 2 V IREG2 = 100 mA; VP = 4.75 V; note 7 IREG2 = 200 mA; VP = 5.75 V; note 7 IREG2 = 100 mA; VBU = 4.75 V; note 10 IREG2 = 200 mA; VBU = 5.75 V; note 10 Ilim Isc current limit short-circuit current VO(REG2) > 4.5 V; note 8 RL 0.5 ; note 9 MIN. - - - - 60 - - - - 0.32 20 - 1 mA IREG3 750 mA 7 V VP 18 V Vline Vload Iq SVRR Vdrop Ilim Isc Vdrop line regulation load regulation quiescent current supply voltage ripple rejection drop-out voltage current limit short-circuit current 7 V VP 18 V 1 mA IREG3 750 mA IREG3 = 750 mA fi = 3 kHz; Vi(p-p) = 2 V IREG3 = 500 mA; VP = 5.75 V; note 7 VO(REG3) > 4.5 V; note 8 RL 0.5 ; note 9 ISW = 1 A; VP = 13.5 V; note 11 ISW = 1.8 A; VP = 13.5 V; note 11 Idc Vclamp IM Vfb Isc continuous current clamping voltage peak current flyback voltage behaviour short-circuit current VP = 16 V; VSW = 13.5 V VP 17 V VP = 17 V; notes 6, 12 and 13 ISW = -100 mA VP = 14.4 V; VSW < 1.2 V; note 13 4.75 4.75 - - - 60 - 0.80 100 - - 1.8 13.5 3 - - 2 15 20 - 70 0.4 0.8 0.2 0.8 0.37 100 TYP. 50 75 50 100 - 0.6 1.2 0.5 1.0 - -
TDA3618JR
MAX.
UNIT mV mV mV mV dB V V V V A mA
Regulator 3 (IREG3 = 5 mA; unless otherwise specified) VO(off) VO(REG3) output voltage off output voltage 1 5.0 5.0 2 20 19 70 1 0.90 400 400 5.25 5.25 50 100 45 - 1.5 - - 0.70 1.8 - 16.0 - 22 - mV V V mV mV mA dB V A mA
Power switch drop-out voltage 0.45 1.0 2.0 15.0 - VP + 3 0.8 V V A V A V A
2002 Feb 12
13
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
SYMBOL Backup switch Idc Vclamp Ir Vth(r) Vth(f) Vhys ILI II(clamp) VIH(clamp) VIL(clamp) continuous current clamping voltage reverse current VP 16.7 V VP = 0 V; VBU = 12.4 V 0.3 - - 2.75 0.8 1.5 VIGN1IN = 5 V VIGN1IN > 50 V - - VP -0.6 0.35 - - 3.25 - - - - - - - 16 -900 3.75 1.3 - 1.0 50 50 0 PARAMETER CONDITIONS MIN. TYP.
TDA3618JR
MAX.
UNIT
A V A V V V A mA V V
Schmitt trigger for enable input of ignition 1 rising threshold voltage of ignition 1 input falling threshold voltage of ignition 1 input hysteresis voltage input leakage current input clamping current HIGH-level input clamping voltage LOW-level input clamping voltage
Schmitt trigger for power supply of ignition 1 Vth(r) Vth(f) VOL VOH IOL ILO tPLH tPHL rising threshold voltage falling threshold voltage note 14 6.5 4.0 7.0 4.5 7.5 5.0 V V
Ignition 1 buffer LOW-level output voltage HIGH-level output voltage LOW-level output current output leakage current LOW-to-HIGH propagation time HIGH-to-LOW propagation time IIGN1OUT = 0 mA IIGN1OUT = 0 mA VIGN1OUT 0.8 V VIGN1OUT = 5 V; VIGN1IN = 0 V VIGN1IN falling from 3.75 to 0.8 V VIGN1IN rising from 0.8 to 3.75 V 0 4.5 0.45 - - - 0.2 5.0 0.8 - - - 0.8 5.25 - 1.0 500 500 V V mA A s s
Schmitt trigger for enable input of ignition 2 Vth(r) Vth(f) Vhys ILI II(clamp) VIH(clamp) rising threshold voltage of ignition 2 input falling threshold voltage of ignition 2 input hysteresis voltage input leakage current input clamp current HIGH-level input clamping voltage VP > 3.5 V VP > 3.5 V VP > 3.5 V VIGN2IN = 5 V VIGN2IN > 50 V 1.9 1.7 0.1 - - VP 2.2 2.0 0.2 - - - 2.5 2.3 0.5 1.0 50 50 V V V A mA V
2002 Feb 12
14
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
SYMBOL VIL(clamp) PARAMETER LOW-level input clamping voltage CONDITIONS MIN. -0.6 - TYP. 0
TDA3618JR
MAX.
UNIT V
Ignition 2 buffer VOL VOH IOL IOH ILO tPLH tPHL 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 k 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 ) = ------ x V th(r)(RES) = C x ( 750 x 10 ) [s] I ch 6. The delay time depends on the value of the capacitor connected to pin CRES: C 3 t d(RES) = ------ x ( V O(REG2) - 3.5 ) = C x ( 375 x 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. LOW-level output voltage HIGH-level output voltage LOW-level output current HIGH-level output current output leakage current (source) LOW-to-HIGH propagation time HIGH-to-LOW propagation time IIGN2OUT = 0 mA IIGN2OUT = 0 mA VIGN2OUT 0.8 V VIGN2OUT 4.5 V VIGN2OUT = 5 V; VIGN2IN = 5 V VIGN2IN rising from 1.7 to 2.5 V VIGN2IN falling from 2.5 to 1.7 V 0 4.5 0.45 0.2 5.0 0.8 0.8 5.25 - - 1.0 500 500 V V mA mA A s s
-0.45 -2.0 - - - - - -
2002 Feb 12
15
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
handbook, halfpage
MBK946
TDA3618JR
9.0 VO(REG1) (V)
handbook, halfpage
VO(REG2) (V) 5.0
MGL598
Isc
IREG1 (A)
Ilim
Isc IREG2 (A)
Ilim
a. Regulator 1.
handbook, halfpage
VO(REG3) (V) 5.0
MGL599
Isc
IREG3 (A)
Ilim
b. Regulator 2. Fig.6 Foldback current protection of the regulators.
handbook, full pagewidth
MGU349
VSW (V) VP - 3.3
generates hold 2VBE 1
delayed
not delayed
>1.8 ISW (A)
>3
Fig.7 Current protection of the power switch.
2002 Feb 12
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Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
TEST AND APPLICATION INFORMATION Test information
TDA3618JR
handbook, full pagewidth
VP C1 220 nF
(1)
1
17
SW C2 220 nF RL(SW) 12 k
VP
ENSW VENSW EN1 VEN1 EN3 VEN3
11
15
REG2 C3 10 F
5V RL(REG2) 5 k
10
2
REG1
10 V C4 10 F RL(REG1) 10 k 5V C5 10 F RL(REG3) 5 k
REG3 4 3
TDA3618JR
CRES C7 47 nF 13 9 RES R2 10 k
(3)
C6 50 pF
BU VBU C8 100 F
(2)
16 12
HOLD
R3 10 k
(3)
C11 50 pF
R5 VIGN1 10 k C9 1 nF
IGN1IN
6
7
IGN1OUT
R4 10 k
R6 VIGN2 10 k C10 1 nF
IGN2IN
5 14 ground
8
IGN2OUT
MGR932
(1) A minimum supply line capacitor of 220 nF on VP is required for stability. (2) A minimum backup capacitance of 1 F 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
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
Application information NOISE Table 1 Noise figures NOISE FIGURE (V)(1) REGULATOR 1 2 3 Note 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 F is connected directly to pins 1 and 14 (supply and ground), the noise is minimal. 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. Co = 10 F 170 180 100 Co = 47 F 130 120 70 Co = 100 F 110 100 65
TDA3618JR
The two examples show how an output capacitor value is selected.
Example 1
Regulators 1 and 3 are stabilized with an electrolytic output capacitor of 220 F (ESR = 0.15 ). At Tamb = -30 C the capacitor value is decreased to 73 F and the ESR is increased to 1.1 . The regulator will remain stable at Tamb = -30 C (see Fig.9).
Example 2
Regulator 2 is stabilized with a 10 F electrolytic capacitor (ESR = 3 ). At Tamb = -30 C the capacitor value is decreased to 3 F and the ESR is increased to 23.1 . The regulator will be unstable at Tamb = -30 C (see Fig.10).
Solution
To avoid problems with stability at low temperatures, the use of tantalum capacitors is recommended. Use a tantalum capacitor of 10 F or a larger electrolytic capacitor.
handbook, halfpage
20
MGK612
handbook, halfpage
R () 15
R ()
14 12 10
MGK613
maximum ESR
maximum ESR 10
8 6 stable region
5
stable region
4 2 minimum ESR 0.22 1 10 100
0 0.1 1 10 C (F) 100
0 C (F)
Fig.9
Curve for selecting the value of output capacitor for regulators 1 and 3.
Fig.10 Curve for selecting the value of output capacitor for regulator 2.
2002 Feb 12
18
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
PACKAGE OUTLINE DBS17P: plastic DIL-bent-SIL (special bent) power package; 17 leads (lead length 12 mm)
TDA3618JR
SOT475-1
non-concave D x Dh
Eh
view B: mounting base side
d
A2
B j E A
L3
L
Q
1 Z e e1 bp wM
17 c m e2 vM
0
5 scale
10 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A 17.0 15.5 A2 4.6 4.4 bp 0.75 0.60 c 0.48 0.38 D (1) 24.0 23.6 d 20.0 19.6 Dh 10 E (1) 12.2 11.8 e 2.54 e1 e2 Eh 6 j 3.4 3.1 L 12.4 11.0 L3 2.4 1.6 m 4.3 Q 2.1 1.8 v 0.8 w 0.4 x 0.03 Z (1) 2.00 1.45
1.27 5.08
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT475-1 REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION
ISSUE DATE 97-05-20 99-12-17
2002 Feb 12
19
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
SOLDERING Introduction to soldering through-hole mount packages 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. 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.
TDA3618JR
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 (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. 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.
Suitability of through-hole mount IC packages for dipping and wave soldering methods SOLDERING METHOD PACKAGE DIPPING DBS, DIP, HDIP, SDIP, SIL Note 1. For SDIP packages, the longitudinal axis must be parallel to the transport direction of the printed-circuit board. suitable suitable(1) WAVE
2002 Feb 12
20
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
DATA SHEET STATUS DATA SHEET STATUS(1) Objective data PRODUCT STATUS(2) Development DEFINITIONS
TDA3618JR
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. 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. 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.
Preliminary data
Qualification
Product data
Production
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 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. 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. 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. DISCLAIMERS 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. 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.
2002 Feb 12
21
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
NOTES
TDA3618JR
2002 Feb 12
22
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
NOTES
TDA3618JR
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: sales.addresses@www.semiconductors.philips.com.
(c) Koninklijke Philips Electronics N.V. 2002
SCA74
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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