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INTEGRATED CIRCUITS
DATA SHEET
TDA3618AJR Multiple voltage regulator with switch and ignition buffers
Product specification File under Integrated Circuits, IC01 2001 May 02
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 the 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 (push-pull) 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 (supply line may be short-circuited) * ESD protected on all pins * Thermal protections with hysteresis * Load dump protection
TDA3618AJR
* 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 TDA3618AJR 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.
ORDERING INFORMATION TYPE NUMBER TDA3618AJR PACKAGE NAME DBS17P DESCRIPTION plastic DIL-bent-SIL (specially bent) power package; 17 leads (lead length 12 mm) VERSION SOT475-1
2001 May 02
2
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
QUICK REFERENCE DATA SYMBOL Supply VP supply voltage operating reverse polarity; non-operating regulator 2 on jump start; t 10 minutes load dump protection; t 50 ms; tr 2.5 ms Iq(tot) Tj VO(REG1) VO(REG2) VO(REG3) Vdrop IM total quiescent supply current junction temperature 1 mA IREG1 600 mA 0.5 mA IREG2 150 mA; VP = 14.4 V 1 mA IREG3 750 mA ISW = 1 A ISW = 1.8 A peak current standby mode 11 - 2.4 - - - - 8.5 4.75 4.75 - - 3 PARAMETER CONDITIONS MIN.
TDA3618AJR
TYP.
MAX.
UNIT
14.4 - 14.4 - - 400 - 9.0 5.0 5.0
18 -18 50 30 50 500 150
V V V V V A C V V V
Voltage regulators output voltage of regulator 1 output voltage of regulator 2 output voltage of regulator 3 9.5 5.25 5.25
Power switch drop-out voltage 0.45 1.0 - 0.70 1.8 - V V A
2001 May 02
3
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
BLOCK DIAGRAM
TDA3618AJR
handbook, full pagewidth
VP
1
Vth(r) = 7 V, Vth(f) = 4.5 V
POWER SWITCH
17
SW
11 ENSW
&
TEMPERATURE LOAD DUMP PROTECTION
BACK-UP SWITCH
16
BU
BACK-UP CONTROL
REGULATOR 2
15
REG2
&
4 EN3
REGULATOR 3
3
REG3
TDA3618AJR
REGULATOR 1 2 REG1
&
10 EN1
12
HOLD
1
&
Vreg2
9
RES
CRES IGN2IN
13 5 IGNITION BUFFER 8 7 6 INVERTER 14 GND
MGU332
IGN2OUT IGN1OUT
IGN1IN
Fig.1 Block diagram.
2001 May 02
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 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 (push-pull) enable input regulator 1 enable input power switch hold output (active LOW) reset delay capacitor ground regulator 2 output backup power switch output
handbook, halfpage
TDA3618AJR
VP REG1 REG3 EN3 IGN2IN IGN1IN IGN1OUT IGN2OUT RES
1 2 3 4 5 6 7 8 9 TDA3618AJR
EN1 10 ENSW 11 HOLD 12 CRES 13 GND 14 REG2 15 BU 16 SW 17
MGU333
Fig.2 Pin configuration.
2001 May 02
5
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
FUNCTIONAL DESCRIPTION The TDA3618AJR 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 TDA3618AJR. 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. This start-up feature is included 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 the 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 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.
TDA3618AJR
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 and 2 A continuous (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 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/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 total timing diagrams are shown in Figs 4 and 5.
2001 May 02
6
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
TDA3618AJR
handbook, full pagewidth
VP
1 Vref1
low battery detector
TDA3618AJR
output stage 2
Vref2
REG1
&
out of regulation detector
enable EN1 10
1
REGULATOR 1 output stage 3
REG3
1
out of regulation detector REGULATOR 3
12 buffer
HOLD
enable EN3 4
TEMPERATURE PROTECTION >150 C
LOAD DUMP
V16 FOLDBACK MODE
MGU334
Fig.3 Block diagram of the hold circuit.
2001 May 02
7
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
TDA3618AJR
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.
2001 May 02
8
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
TDA3618AJR
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.
2001 May 02
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.
TDA3618AJR
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
2001 May 02
10
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 voltage operating regulator 2 on; note 1 load dump protection; t 50 ms; tr 2.5 ms Iq quiescent supply current VP = 12.4 V; note 2 VP = 14.4 V; note 2 Vth(r) Vth(f) Vhys Vth(r) Vth(f) Vhys Vth(r) Vth(f) Vhys ILI Vth(r) Vth(f) rising threshold voltage falling threshold voltage hysteresis voltage 11 2.4 - - - 6.5 4.0 - 6.0 1.7 - 1.4 0.9 IREG = ISW = 1 mA VEN = 5 V - 1 14.4 14.4 - - 390 400 PARAMETER CONDITIONS MIN. TYP.
TDA3618AJR
MAX.
UNIT
18 18 30 50 500 - 7.5 5.0 - 7.1 2.3 - 2.4 1.9 - 10
V V V V A A V V V
jump start; t 10 minutes -
Schmitt trigger for regulator 1, regulator 3 and the power switch 7.0 4.5 2.5
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 V V V A V V
Reset trigger level of regulator 2 rising threshold voltage falling threshold voltage VP rising; IREG1 = 50 mA; 4.43 note 3 VP falling; IREG1 = 50 mA; 4.4 note 3 - 8.1 - VP rising; note 3 VP falling; note 3 - 4.1 - VO(REG2) - 0.15 VO(REG2) - 0.1 VO(REG2) - 0.20 VO(REG2) - 0.15
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) - 0.075 V VO(REG1) - 0.35 - 0.2 - 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) - 0.15 VO(REG3) - 0.075 V VO(REG3) - 0.35 - 0.2 - V V
2001 May 02
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.
TDA3618AJR
MAX. 10.3 9.8 -
UNIT V V V
Reset and hold buffer Isink(L) LOW-level sink current VRES 0.8 V; VHOLD 0.8 V; VCRES < 1.0V 2 - - mA
ILO Isource(H) tr tf Ich Idch Vth(r)(RES) td(RES) Vth(r)(SW) td(SW)
HOLD output leakage current
VP = 14.4 V; VHOLD = 5 V -
0.1 400 7 1
5 900 50 50
A A s s A A V ms V ms
HIGH-level source current VP = 14.4V; VRES = 4.5V; 240 VCRES > 3.5V rise time fall time note 4 note 4 - - 2 500 2.5 C = 47 nF; note 5 20 - C = 47 nF; note 6 8
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 4 800 3.0 35 VO(REG2) 17.6 8 - 3.5 70 - 40
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
2001 May 02
12
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
SYMBOL PARAMETER CONDITIONS MIN. TYP.
TDA3618AJR
MAX.
UNIT
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 Vline Vload SVRR Vdrop line regulation load regulation supply voltage ripple rejection drop-out voltage 6 V VP 18 V 6 V VP 50 V 1 mA IREG2 150 mA 1 mA IREG2 300 mA fi = 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 4.75 4.75 - - - - 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 continuous current clamping voltage VP = 16 V; VSW = 13.5 V VP 17 V 4.75 4.75 - - - 60 - 0.80 100 - - 1.8 13.5 5.0 5.0 5.0 2 15 20 - 70 0.4 0.8 0.2 0.8 0.37 100 5.25 5.25 5.25 50 75 50 100 - 0.6 1.2 0.5 1.0 - - V V V 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 mV V V mV mV mA dB V A mA
Power switch drop-out voltage 0.45 1.0 2.0 15.0 V V A V
2001 May 02
13
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
SYMBOL IM Vfb Isc PARAMETER peak current flyback voltage behaviour short-circuit current CONDITIONS VP = 17 V; notes 6, 12, 13 ISW = -100 mA VP = 14.4 V; VSW < 1.2 V; note 13 MIN. 3 - - - VP + 3 0.8 TYP. -
TDA3618AJR
MAX.
UNIT A V A
22 -
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 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 IIGN1OUT = 0 mA IIGN1OUT = 0 mA VIGN1OUT 0.8 V VIGN1OUT = 5 V; VIGN1IN = 0 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
LOW-to-HIGH propagation VIGN1IN falling from time 3.75 to 0.8 V HIGH-to-LOW propagation time VIGN1IN rising from 0.8 to 3.75 V
Schmitt trigger for enable input of ignition 2 Vth(r) Vth(f) Vhys ILI II(clamp) 2001 May 02 rising threshold voltage of ignition 2 input falling threshold voltage of ignition 2 input hysteresis voltage input leakage current input clamp current VP > 3.5 V VP > 3.5 V VP > 3.5 V VIGN2IN = 5 V VIGN2IN > 50 V 14 1.9 1.7 0.1 - - 2.2 2.0 0.2 - - 2.5 2.3 0.5 1.0 50 V V V A mA
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
SYMBOL VIH(clamp) VIL(clamp) PARAMETER HIGH-level input clamping voltage LOW-level input clamping voltage CONDITIONS MIN. VP -0.6 - - TYP.
TDA3618AJR
MAX. 50 0
UNIT V 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 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 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) IIGN2OUT = 0 mA IIGN2OUT = 0 mA VIGN2OUT 0.8 V VIGN2OUT 4.5 V VIGN2OUT = 5 V; VIGN2IN = 5 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
LOW-to-HIGH propagation VIGN2IN rising from time 1.7 to 2.5 V HIGH-to-LOW propagation time VIGN2IN falling from 2.5 to 1.7 V
2001 May 02
15
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
TDA3618AJR
handbook, halfpage
MBK946
9.0 VO(REG1) (V)
Isc
IREG1 (A)
Ilim
a. Regulator 1.
handbook, halfpage
VO(REG2) (V) 5.0
MGL598
handbook, halfpage
VO(REG3) (V) 5.0
MGL599
Isc IREG2 (A)
Ilim
Isc
IREG3 (A)
Ilim
b. Regulator 2.
c. Regulator 3.
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.
2001 May 02
16
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
TEST AND APPLICATION INFORMATION Test information
TDA3618AJR
handbook, full pagewidth
VP C1 220 nF ENSW
1
17
SW C2 220 nF REG2 C3 10 F 5V RL(REG2) 5 k RL(SW) 12 k
VP
11
15
VENSW EN1 VEN1 EN3 VEN3 REG3 4 3 REG1
10
2
10 V C4 10 F 5V C5 10 F RL(REG3) 5 k RL(REG1) 10 k
TDA3618AJR
CRES C7 47 nF 13 9 RES C6 1 F BU VBU C8 16 12 HOLD R3 10 k
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
MGU335
Fig.8 Test circuit.
2001 May 02
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 (the output noise of the regulators is translated to a current noise by 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. Co = 10 F 170 180 100 Co = 47 F 130 120 70 Co = 100 F 110 100 65
TDA3618AJR
The output capacitors can be selected by 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. The two examples below 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 remains stable at Tamb = -30 C.
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 . Using Fig.10, the regulator will be unstable at Tamb = -30 C.
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 maximum ESR 10
R ()
14 12 10 8 6
MGK613
maximum ESR
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.
2001 May 02
18
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
PACKAGE OUTLINE
TDA3618AJR
DBS17P: plastic DIL-bent-SIL (special bent) power package; 17 leads (lead length 12 mm)
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
2001 May 02
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.
TDA3618AJR
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
2001 May 02
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
TDA3618AJR
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.
2001 May 02
21
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
NOTES
TDA3618AJR
2001 May 02
22
Philips Semiconductors
Product specification
Multiple voltage regulator with switch and ignition buffers
NOTES
TDA3618AJR
2001 May 02
23
Philips Semiconductors - a worldwide company
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For all other countries apply to: Philips Semiconductors, Marketing Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825 (c) Philips Electronics N.V. 2001
Internet: http://www.semiconductors.philips.com
SCA 72
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
403502/01/pp24
Date of release: 2001
May 02
Document order number:
9397 750 08068

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