TDA3609 [NXP]
Multiple voltage regulator with switch and ignition buffers; 带开关和点火缓冲多个稳压器
| 型号： | TDA3609 |
| 厂家： | 
NXP |
| 描述： | Multiple voltage regulator with switch and ignition buffers |
| 文件： | 总20页 (文件大小：140K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
DATA SHEET
TDA3609JR
Multiple voltage regulator with
switch and ignition buffers
1997 Aug 15
Preliminary specification
File under Integrated Circuits, IC01
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
FEATURES
General
GENERAL DESCRIPTION
The TDA3609JR 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:
• Extreme low noise behaviour and good stability with
very small output capacitors
• Two fixed voltage regulators with a foldback current
protection (regulator 1 and regulator 3) and one fixed
voltage regulator (regulator 2), intended to supply a
microcontroller, that also operates during load dump
and thermal shutdown
• Two VP-state controlled regulators (regulator 1 and
regulator 3) and a power switch
• Regulator 2, reset and ignition buffer operate during
load dump and thermal shutdown
• Separate control pins for switching regulator 1,
• A power switch with protections, operated by an enable
regulator 3 and the power switch
input
• Supply voltage range of −18 to +50 V
• Low reverse current of regulator 2
• Reset and hold outputs that can be used to interface by
the microcontroller. The reset-signal can be used to call
up the microcontroller and the hold output indicates
regulator 1 voltage available and within range.
• Low quiescent current (when regulator 1, regulator 3,
and power switch are switched-off)
• A supply pin which can withstand load dump pulses and
negative supply voltages.
• Hold output (only valid when regulator 1 is switched-on)
• Reset and hold outputs (open collector outputs)
• Adjustable reset delay time
• Regulator 2 that will be switched on at a back-up voltage
greater than 6.5 V and off when the output voltage of
regulator 2 drops below 1.9 V.
• High ripple rejection
• A provision for use of a reserve supply capacitor that will
hold enough energy for regulator 2 (5 V continuous) to
allow a microcontroller to prepare for loss of voltage.
• Back-up capacitor for regulator 2
• Two independent ignition buffers (one inverted and with
open collector output).
• An inverted ignition 1 input with open collector output
stage.
Protections
• An ignition 2 input Schmitt trigger with push pull output
stage.
• Reverse polarity safe (down to −18 V without high
reverse current)
• Able to withstand voltages up to 18 V at the outputs
(supply line may be short-circuited)
• ESD protected on all pins
• Thermal protections with hysteresis
• Load dump protection
• Foldback current limit protection for
regulators 1, 2 and 3
• Delayed second current limit protection for the power
switch (at short-circuit)
• The regulator outputs and the power switch are DC
short-circuited safe to ground and VP.
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
DESCRIPTION
VERSION
TDA3609JR
DBS17P plastic DIL-bent-SIL (special bent) power package; 17 leads
(lead length 12 mm)
SOT475-1
1997 Aug 15
2
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNIT
Supply
VP
supply voltage
operating
11
14.4
−
18
V
reverse polarity
regulator 2 on
jump start
non-operating
−
−18
50
V
2.4
−
14.4
−
V
t ≤ 10 minutes
30
V
load dump protection
t ≤ 50 ms; tr ≥ 2.5 ms
−
−
50
V
Iq(tot)
Tj
total quiescent supply current standby mode
junction temperature
−
500
−
600
150
µA
°C
−
Voltage regulators
VO(REG1) output voltage regulator 1
VO(REG2) output voltage regulator 2
1 mA ≤ IREG1 ≤ 600 mA
9.5
10.0
5.0
10.5
5.25
5.25
V
V
V
0.5 mA ≤ IREG2 ≤ 150 mA; VP = 14.4 V 4.75
VO(REG3
)
output voltage regulator 3
1 mA ≤ IREG3 ≤ 500 mA
4.75
5.0
Power switch
Vd
IM
drop-out voltage
Isw = 1 A
−
−
3
0.45
1
0.7
1.8
−
V
V
A
Isw = 1.8 A
peak current
−
1997 Aug 15
3
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
BLOCK DIAGRAM
V
= 7, V
= 4.5
fall
up
POWER SWITCH
(14.4 V)
1
17 (14.2 V/3 A)
V
SW
P
TEMPERATURE
LOAD DUMP
PROTECTION
11
ENSW
&
BACK-UP SWITCH
16 (14.2 V/100 mA)
BU
BACK-UP CONTROL
15 (5 V/100 mA)
REGULATOR 2
REGULATOR 3
REG2
REG3
(5 V/500 mA)
(10 V/600 mA)
3
&
&
4
EN3
EN1
2
REGULATOR 1
REG1
HOLD
10
12
TDA3609JR
9
RES
13
5
C
RES
8
7
IGN2
IN
IGNITION BUFFER
IGN2
OUT
IGN1
OUT
6
INVERTER
IGN1
IN
14
GND
MGK607
Fig.1 Block diagram.
4
1997 Aug 15
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
PINNING
SYMBOL
VP
PIN
DESCRIPTION
supply voltage
handbook, halfpage
V
1
2
1
2
P
REG1
REG3
EN3
regulator 1 output
regulator 3 output
enable input regulator 3
ignition 2 input
REG1
REG3
EN3
3
3
4
4
IGN2IN
IGN1IN
IGN1OUT
IGN2OUT
RES
5
5
IGN2
IN
6
ignition 1 input
6
IGN1
IN
7
ignition 1 output (active LOW)
ignition 2 output
reset output
7
IGN1
OUT
8
8
IGN2
9
OUT
EN1
10
11
12
13
14
15
16
17
enable input regulator 1
enable input power switch
hold output
9
RES
TDA3609JR
ENSW
HOLD
CRES
10
11
12
13
14
15
16
17
EN1
ENSW
HOLD
reset delay capacitor
ground
GND
C
RES
REG2
BU
regulator 2 output
back-up
GND
REG2
BU
SW
power switch output
SW
MGK606
Fig.2 Pin configuration.
The charge of the back-up capacitor can be used to supply
regulator 2 for a short period when the supply falls down
to 0 V (time depends on value of storage capacitor).
FUNCTIONAL DESCRIPTION
The TDA3609JR is a multiple output voltage regulator with
a power switch, intended for use in car radios with or
without a microcontroller. Because of low-voltage
operation of the car radio, low-voltage drop regulators are
used in the TDA3609JR.
The output stages (regulator 1 and 3) of this regulator have
extreme low noise behaviour and good stability. Using
small output capacitors regulator 1 and 3 are made stable.
Regulator 2 will switch on when the back-up voltage
exceeds 6.5 V for the first time and will switch off again
when the output voltage of regulator 2 is below 1.9 V (this
is far below an engine start). When regulator 2 is switched
on and the output voltage of this regulator is within its
voltage range, the reset output will be enabled (reset will
go HIGH via a pull-up resistor) to generate a reset to the
microcontroller. The reset cycles can be extended by a
external capacitor at pin 13. The above mentioned start-up
feature is built-in to secure a smooth start-up of the
microcontroller at first connection, without uncontrolled
switching of regulator 2 during the start-up sequence.
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 10 and 4 respectively).
Regulator 1 has a hold output (open collector) indicating
that the output voltage of this regulator is settled (held
HIGH by external pull-up resistor). When the output
voltage of this regulator drops out of regulation (because
of supply voltage drop or high load) the hold output will go
LOW. The hold output signal is only valid when regulator 1
is enabled by its enable input (pin 10).
1997 Aug 15
5
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
The power switch can also be controlled by means of a
separate enable input (pin 11).
At supply voltages >17 V the switch is clamped at
maximum 16 V (to avoid external connected circuitry being
damaged by an overvoltage) and the switch will switch off
at load dump.
All output pins are fully protected. The regulators are
protected against load dump (regulator 1 and 3 will switch
off at supply voltages >18 V) and short-circuit (foldback
current protection).
By means of two independent ignition Schmitt triggers and
ignition output buffers (one open collector and one
push-pull output), interfacing with the microcontroller can
be accomplished (simple full/semi on/off logic
The switch contains a current protection, but this
protection is delayed at short-circuit condition for at least
10 ms. During this time the output current is limited to a
peak value of at least 3 A and 2 A continuous (VP ≤ 18 V).
applications). The ignition 1 output is inverted.
The total timing diagrams are shown in Figs 3 and 4.
load dump
V
7.0 V
4.5 V
P
≤50 V
ignition 1
input
≥3.25 V
≤1.1 V
≥−100 V
5.0 V
ignition 1
output
Enable Schmitt trigger ignition 1
load dump
V
P
≤50 V
≥2.2 V
ignition 2
input
≤2.0 V
≥−100 V
5.0 V
ignition 2
output
MGK611
Enable Schmitt trigger ignition 2
Fig.3 Timing diagram ignition Schmitt triggers.
1997 Aug 15
6
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
load dump
V
P
6.5 V
5.4 V
V
BU
5.0 V
regulator 2
1.9 V
0 V
reset
delay
capacitor
5.0 V
3.0 V
0 V
6.0 V
reset
Back-up Schmitt trigger and reset behaviour
load dump
18 V
10.4 V
7.0 V
4.0 V
V
P
≥2.2 V
≤2.0 V
enable
regulator 1
10 V
0 V
regulator 1
≥2.2 V
≤2.0 V
enable
regulator 3
5.0 V
0 V
regulator 3
V
and enable Schmitt trigger
P
load dump
16.9 V
V
P
7.0 V
4.0 V
enable
power
switch
≥2.2 V
≤2.0 V
16 V
power
switch
output
0 V
MGK610
Power switch behaviour
Fig.4 Timing diagram regulators and power switch.
7
1997 Aug 15
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
VP
PARAMETER
supply voltage
CONDITIONS
MIN.
MAX.
UNIT
operating
−
−
−
−
−
18
V
V
V
V
W
reverse polarity
non-operating
−18
30
jump start
t ≤ 10 minutes
load dump protection
total power dissipation
storage temperature
ambient temperature
junction temperature
t ≤ 50 ms; tr ≥ 2.5 ms
50
Ptot
Tstg
Tamb
Tj
62
non-operating
operating
−55
−40
−40
+150
+85
+150
°C
°C
°C
operating
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
VALUE
UNIT
K/W
K/W
Rth(j-c)
Rth(j-a)
thermal resistance from junction to case
thermal resistance from junction to ambient
2
in free air
50
1997 Aug 15
8
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
CHARACTERISTICS
VP = 14.4 V; Tamb = 25 °C; see Fig.7; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
VP
supply voltage
operating
11
14.4
14.4
−
18
18
V
regulator 2 on
note 1
2.4
−
V
jump start
t ≤ 10 minutes
30
V
load dump protection
quiescent supply current
t ≤ 50 ms; tr ≥ 2.5 ms
−
−
50
V
Iq
VP = 12.4 V; note 2;
−
500
600
µA
IREG2 = 0.1 mA
VP = 14.4 V; note 2;
IREG2 = 0.1 mA
−
520
−
µA
Schmitt trigger power supply for switch, regulator 1 and regulator 3
Vthr
Vthf
Vhys
rising threshold voltage
falling threshold voltage
hysteresis voltage
6.5
4.0
2.1
7.0
4.5
2.5
7.5
5.0
3.3
V
V
V
Schmitt trigger for regulator 2
Vthr
Vthf
Vhys
rising threshold voltage
falling threshold voltage
hysteresis voltage
6.0
1.7
−
6.5
1.9
4.6
7.1
2.2
−
V
V
V
Schmitt trigger for enable input (regulator 1, regulator 3 and switch)
Vthr
Vthf
Vhys
ILI
rising threshold voltage
falling threshold voltage
hysteresis voltage
1.7
1.5
0.1
1
2.2
2.0
0.2
5
2.7
2.5
0.5
10
V
V
IREG = Isw = 1 mA
Ven = 5 V
V
input leakage current
µA
Reset trigger level
Vthr rising threshold voltage of VP rising; IREG1 = 50 mA;
regulator 2 note 3
Schmitt trigger for hold
4.5
VREG2 − 0.15
VREG2 − 0.1
V
Vthr
Vthf
Vhys
rising threshold voltage of VP rising; note 3
regulator 1
−
V
REG1 − 0.15
REG1 − 0.35
V
REG1 − 0.075
V
V
V
falling threshold voltage of VP falling; note 3
regulator 1
9.2
0.1
V
−
hysteresis voltage
0.2
0.3
Reset and hold buffer
IsinkL LOW-level sink current
ILO
V
RES/HOLD ≤ 0.8 V
2
−
−
mA
output leakage current
VP = 14.4 V;
−
0.1
5
µA
VRES/HOLD = 5 V
rise time
fall time
note 4
note 4
−
−
7
1
50
50
µs
µs
1997 Aug 15
9
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Reset delay
Ich
charge current
2
4
8
µA
µA
V
Idch
Vthr
td
discharge current
rising voltage threshold
delay time
500
2.5
20
800
3.0
35
−
3.5
70
C = 47 nF; note 5
ms
Regulator 1 (IREG1 = 5 mA unless otherwise specified)
VO(off) output voltage off
VO(REG1) output voltage
−
1
400
10.5
10.5
75
mV
V
1 mA ≤ IREG1 ≤ 600 mA
12 V ≤ VP ≤ 18 V
9.5
9.5
−
10.0
10.0
2
V
∆V
line regulation
load regulation
quiescent current
12 V ≤ VP ≤ 18 V
mV
mV
mA
dB
∆VL
Iq
1 mA ≤ IREG1 ≤ 600 mA
IR1 = 600 mA
−
20
25
70
100
60
−
SVRR
supply voltage ripple
rejection
fi = 3 kHz; Vi(p-p) = 2 V
60
−
Vd
drop-out voltage
IREG1 = 550 mA;
−
0.4
0.7
V
VP = 9.5 V; note 6
IREGm1
IREGsc1
current limit
VREG1 > 8.5 V; note 7
0.65
250
1.2
−
−
A
short-circuit current
RL ≤ 0.5 Ω; note 8
800
mA
Regulator 2 (IREG2 = 5 mA unless otherwise specified)
VO(REG2) output voltage 0.5 mA ≤ IREG2 ≤ 150 mA
REG2 = 300 mA; note 9
4.75
4.75
4.75
4.75
5.0
5.0
5.0
5.0
5.25
5.25
5.25
5.25
V
V
V
V
I
8 V ≤ VP ≤ 18 V
18 V ≤ VP ≤ 50 V;
I
REG2 ≤ 150 mA
∆V
line regulation
load regulation
6 V ≤ VP ≤ 18 V
−
2
50
75
50
100
−
mV
mV
mV
mV
dB
6 V ≤ VP ≤ 50 V
−
15
20
−
∆VL
1 mA ≤ IREG2 ≤ 150 mA
1 mA ≤ IREG2 ≤ 300 mA
f = 3 kHz; Vi(p-p) = 2 V
−
−
SVRR
Vd
supply voltage ripple
rejection
60
70
drop-out voltage
IREG2 = 100 mA;
VP = 4.75 V; note 6
−
−
−
−
0.4
0.8
0.2
0.8
0.6
1.2
0.5
1.0
V
V
V
V
I
REG2 = 200 mA;
VP = 5.75 V; note 6
REG2 = 100 mA;
Vbu = 4.75 V; note 10
REG2 = 200 mA;
I
I
Vbu = 5.75 V; note 10
VREG2 > 4.5 V; note 7
RL ≤ 0.5 Ω; note 8
IREGm2
IREGsc2
current limit
0.32
20
0.37
100
−
−
A
short-circuit current
mA
1997 Aug 15
10
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
SYMBOL
Regulator 3 (IREG3 = 5 mA unless otherwise specified)
VO(off) output voltage off
VO(REG3) output voltage
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
−
1
400
5.25
5.25
50
mV
V
1 mA ≤ IREG3 ≤ 500 mA
7 V ≤ VP ≤ 18 V
4.75
4.75
−
5.0
5.0
2
V
∆V
line regulation
load regulation
quiescent current
7 V ≤ VP ≤ 18 V
mV
mV
mA
dB
∆VL
Iq
1 mA ≤ IREG3 ≤ 500 mA
IR3 = 500 mA
−
20
19
70
75
−
45
SVRR
supply voltage ripple
rejection
fi = 3 kHz; Vi(p-p) = 2 V
60
−
Vd
drop-out voltage
IREG3 = 500 mA;
−
1
1.5
V
VP = 5.75 V; note 6
IREGm3
IREGsc3
current limit
VREG3 > 4.5 V; note 7
0.60
100
0.80
400
−
−
A
short-circuit current
RL ≤ 0.5 Ω; note 8
mA
Power switch
Vd
drop-out voltage
Isw = 1 A; VP = 13.5 V;
note 11
−
−
0.6
1.4
0.85
1.9
V
V
Isw = 1.8 A; VP = 13.5 V;
note 11
Idc
Vcl
IM
continuous current
clamping voltage
peak current
VP = 16 V; Vsw = 13.5 V
VP ≥ 17 V
1.8
13.5
3
2.0
15.0
−
−
A
V
A
V
A
16.0
−
VP = 17 V; notes 12 and 13
Vfb
Isc
fly back voltage behaviour Isw = −100 mA
short-circuit current VP = 14.4 V; Vsw < 1.2 V;
−
VP + 3
0.8
22
−
−
note 13
Back-up switch
Idc
Vcl
Ir
continuous current
0.3
−
0.35
−
−
A
clamping voltage
reverse current
VP ≥ 16.7 V
16
900
V
VP = 0 V; Vbu = 12.4 V
−
−
mA
Schmitt trigger for enable input of ignition 1
Vthr
rising threshold voltage of
ignition 1 input
2.75
0.8
3.25
3.75
1.3
V
V
Vthf
falling threshold voltage of
ignition 1 input
−
Vhys
ILI
hysteresis voltage
1.5
−
−
−
−
−
−
V
input leakage current
input clamping current
VIGN1in = 5 V
VIGN1in > 50 V
1.0
50
50
µA
mA
V
II(clamp)
−
VIH(clamp) HIGH-level input clamping
voltage
VP
VIL(clamp) LOW-level input clamping
voltage
−0.6
−
0
V
1997 Aug 15
11
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Schmitt trigger power supply for ignition 1
Vthr
Vthf
rising threshold voltage
falling threshold voltage
6.5
7.0
4.5
7.5
5.0
V
V
note 14
4.0
Ignition 1 buffer
VOL
IOL
LOW-level output voltage
IIGN1out = 0 mA
IGN1out ≤ 0.8 V
0
0.2
0.8
−
0.8
−
V
LOW-level output current
output leakage current
V
0.45
mA
µA
µs
ILO
VIGN1out = 5 V; VIGN1in = 0 V −
1.0
500
tPLH
LOW-to-HIGH
propagation time
VIGN1in rising from
0.8 V to 3.75 V
−
−
tPHL
HIGH-to-LOW
propagation time
VIGN1in falling from
3.75 V to 0.8 V
−
−
500
µs
Schmitt trigger for enable input of ignition 2
Vthr
rising threshold voltage of VP > 3.5 V
ignition 2 input
1.9
1.7
2.2
2.0
2.5
2.3
V
V
Vthf
falling threshold voltage of VP > 3.5 V
ignition 2 input
Vhys
ILI
hysteresis voltage
input leakage current
input clamp current
VP > 3.5 V
0.1
−
0.2
−
0.5
1.0
50
V
VIGN2in = 5 V
VIGN2in > 50 V
µA
mA
V
II(clamp)
−
−
VIH(clamp) HIGH-level input clamping
voltage
VP
−
50
VIL(clamp) LOW-level input clamping
voltage
−0.6
−
0
V
1997 Aug 15
12
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Ignition 2 buffer
VOL
VOH
IOL
LOW-level output voltage
IIGN2out = 0 mA
0
0.2
5.0
0.8
0.8
5.25
−
V
HIGH-level output voltage IIGN2out = 0 mA
4.5
V
LOW-level output current
HIGH-level output current
V
IGN2out ≤ 0.8 V
IGN2out ≥ 4.5 V
0.45
mA
mA
µA
IOH
ILO
V
−0.45 −2.0
−
output leakage current
(source)
VIGN1out = 5 V; VIGN1in = 0 V −
−
−
−
1.0
tPLH
tPHL
LOW-to-HIGH
propagation time
VIGN2in rising from
1.7 V to 2.5 V
−
−
500
500
µs
µs
HIGH-to-LOW
propagation time
VIGN2in falling from
2.5 V to 1.7 V
Notes
1. Minimum operating voltage, only if VP has exceeded 6.5 V.
2. The quiescent current is measured in the standby mode. So, the enable inputs of regulator 1, 3 and the power switch
are grounded and RL(REG2) = ∞ (see Fig.7).
3. The voltage of the regulator sinks as a result of a VP drop.
4. The rise and fall time is measured with a 10 kΩ pull-up resistor and a 50 pF load capacitor.
= C × 750 × 103 (ms)
C(th)
C
Ich
5. The delay time depends on the value of the capacitor: td
=
× V
------
6. The drop-out voltage of regulators 1, 2 and 3 is measured between VP and REGn.
7. At current limit, IREGmn is held constant (see Fig.5 for behaviour of IREGmn).
8. The foldback current protection limits the dissipated power at short-circuit (see Fig.5).
9. The peak current of 300 mA can only be applied for short periods (t < 100 ms).
10. The drop-out voltage measured between BU and REG2.
11. The drop-out voltage of the power switch is measured between 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 will be 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 will be disabled when a voltage of VP + 1 V is
applied to the switch-enable input.
14. VIGN1out = LOW for VIGN1out > 1.2 V or VEN1 > 1.3 V or VEN3 > 1.3 V or VENSW > 1.3 V.
1997 Aug 15
13
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
handbook, halfpage
10 V
MGK608
handbook, halfpage
V
O(REG2)
V
O(REG1)
MGK655
5.0 V
2 V
1 V
I
I
I
I
≥50 mA
≥300 mA
REGsc2
REGm2
REGsc1
REGm1
I
REG2
I
REG1
a. Regulator 1.
b. Regulator 2.
handbook, halfpage
V
O(REG3)
5.0 V
MGK656
1 V
I
I
REGm3
≥200 mA
REGsc3
I
REG3
c. Regulator 3.
Fig.5 Foldback current protection of the regulators.
handbook, halfpage
MGB758
≥3
I
sw
(A)
1.8
t (ms)
≥10
VSW > 5 V.
Fig.6 Current protection of the power switch.
1997 Aug 15
14
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
TEST AND APPLICATION INFORMATION
Test information
supply voltage
power switch output
17
15
2
1
C2
220 nF
C1
220 nF
V
R
P
L(SW)
12 kΩ
regulator 2
output
enable input power switch
enable input regulator 1
enable input regulator 3
5 V
11
10
4
C3
10 µF
R
V
L(REG2)
ENSW
5 kΩ
regulator 1
output
10 V
C4
10 µF
R
V
L(REG1)
EN1
10 kΩ
regulator 3
output
5 V
3
C5
10 µF
R
V
L(REG3)
EN3
5 kΩ
reset delay
capacitor
TDA3609JR
R2
10 kΩ
13
16
reset
output
C7
47 nF
9
C6
1 µF
R3
10 kΩ
back-up
hold
output
12
V
bu
C8
R4
10 kΩ
ignition 1
ignition 1
output
R5
input
6
5
7
8
10 kΩ
C9
1 nF
V
IGN1
ignition 2
input
ignition 2
output
R6
10 kΩ
C10
1 nF
14
V
IGN 2
ground
MGK609
Fig.7 Test circuit.
15
1997 Aug 15
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
The output capacitors can be selected using the graphs of
Figs 8 and 9. When an electrolytic capacitor is used, the
temperature behaviour of this output capacitor can cause
oscillations at a low temperature. The next 2 examples
show how an output capacitor value is selected.
Application information
NOISE
Table 1 Noise figures
REGULATOR
NOISE FIGURE (µV)(1)
Example 1
CO = 10 µF CO = 47 µF CO = 100 µF
Regulators 1 and 3 are made stable with an electrolytic
output capacitor of 220 µF (ESR = 0.15 Ω). At −30 °C the
capacitor value is decreased to 73 µF and the ESR is
increased to 1.1 Ω. The regulator will remain stable at
−30 °C.
1
2
3
tbf
tbf
tbf
150
150
200
tbf
tbf
tbf
Note
1. Measured at a bandwidth of 200 kHz.
Example 2
Regulator 2 is made stable with a 10 µF electrolytic
capacitor (ESR = 3 Ω). At −30 °C the capacitor value is
decreased to 3 µF and the ESR is increased to 23.1 Ω.
Using Fig.9, the regulator will be instable at −30 °C.
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
Use a tantalum capacitor of 10 µF or a larger electrolytic
capacitor. To avoid problems with stability at low
temperatures, the use of tantalum capacitors is
recommended.
STABILITY
The regulators are made stable with the external
connected output capacitors.
handbook, halfpage
MGK613
MGK612
handbook, halfpage
20
14
R
(Ω)
maximum ESR
R
(Ω)
12
10
8
15
maximum ESR
10
stable region
6
4
5
0
stable region
2
minimum ESR
10
0
10
0.1
1
100
1
100
0.22
C (µF)
C (µF)
Fig.8 Curve for selecting the value of output
capacitor for regulators 1 and 3.
Fig.9 Curve for selecting the value of output
capacitor for regulator 2.
1997 Aug 15
16
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
PACKAGE OUTLINE
DBS17P: plastic DIL-bent-SIL (special bent) power package; 17 leads (lead length 12 mm)
SOT475-1
non-concave
D
h
x
D
E
h
view B: mounting base side
d
A
2
B
j
E
A
L
3
L
Q
1
17
e
w
M
c
v
M
1
Z
b
p
e
e
m
2
0
5
10 mm
scale
DIMENSIONS (mm are the original dimensions)
(1)
(1)
(1)
UNIT
A
A
b
c
D
d
D
E
e
e
e
E
j
L
L
3
m
Q
v
w
x
Z
2
p
h
1
2
h
17.0 4.6 0.75 0.48 24.0 20.0
15.5 4.2 0.60 0.38 23.6 19.6
12.2
11.8
3.4 12.4 2.4
3.1 11.0 1.6
2.00
1.45
2.1
1.8
6
mm
10
2.54 1.27 5.08
0.8
4.3
0.4 0.03
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
EIAJ
97-05-20
SOT475-1
1997 Aug 15
17
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
with the joint for more than 5 seconds. The total contact
time of successive solder waves must not exceed
5 seconds.
SOLDERING
Introduction
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
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.
Repairing soldered joints
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our “IC Package Databook” (order code 9398 652 90011).
Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300 °C it may remain in
contact for up to 10 seconds. If the bit temperature is
between 300 and 400 °C, contact may be up to 5 seconds.
Soldering by dipping or by wave
The maximum permissible temperature of the solder is
260 °C; solder at this temperature must not be in contact
DEFINITIONS
Data sheet status
Objective specification
Preliminary specification
Product specification
This data sheet contains target or goal specifications for product development.
This data sheet contains preliminary data; supplementary data may be published later.
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1997 Aug 15
18
Philips Semiconductors
Preliminary specification
Multiple voltage regulator with switch and
ignition buffers
TDA3609JR
NOTES
1997 Aug 15
19
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Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825
© Philips Electronics N.V. 1997
SCA55
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
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
547027/1200/01/pp20
Date of release: 1997 Aug 15
Document order number: 9397 750 02248
相关型号：
TDA3616T/N1,118
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