RENESAS HA17431FPA

HA17431 Series
Shunt Regulator
REJ03D0678-0300
Rev.3.00
Apr 03, 2007
Description
The HA17431 series is temperature-compensated variable shunt regulators. The main application of these products is in
voltage regulators that provide a variable output voltage. The on-chip high-precision reference voltage source can
provide ±1% accuracy in the V versions, which have a VKA max of 16 volts. The HA17431VLP, which is provided in
the MPAK-5V package, is designed for use in switching mode power supplies. It provides a built-in photocoupler
bypass resistor for the PS pin, and an error amplifier can be easily constructed on the supply side.
Features
•
•
•
•
The V versions provide 2.500 V ±1% at Ta = 25°C
The HA17431VLP includes a photocoupler bypass resistor (2 kΩ)
The reference voltage has a low temperature coefficient
The MPAK-5V(5-pin), MPAKV(3-pin) and UPAKV miniature packages are optimal for use on high mounting
density circuit boards
Block Diagram
K
PS*
2kΩ
+
−
REF
A
Note: * The PS pin is only provided by the HA17431VLP.
Application Circuit Example
Switching power supply secondary-side error amplification circuit
Vout
R
R1
+
–
K
PS
2kΩ
REF
A
R2
GND
HA17431VLP
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 1 of 19
HA17431 Series
Ordering Information
Reference voltage (at 25°C)
Item
HA17431FP
Normal Version
±4%
2.395V to
2.495V to
2.595V
Package Code
(Package Name)
PRSP0008DE-B
(FP-8DGV)
PRSS0003DC-A
(TO-92MODV)
HA17431PA
O
HA17431PNA
O
PRSS0003DC-A
(TO-92MODV)
PRSS0003DA-A
(TO-92V)
O
HA17431VLP
O
HA17431VP
O
HA17431VUP
O
HA17432VUP
O
HA17431VLTP
O
HA17432VLTP
O
HA17431UA
HA17432UA
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 2 of 19
Operating
Temperature
Range
PRSP0008DE-B
(FP-8DGV)
O
HA17431P
Commercial
use
V Version
±1%
2.475V to
2.500V to
2.525V
O
HA17431FPA
Industrial
use
A Version
±2.2%
2.440V to
2.495V to
2.550V
O
O
PLSP0005ZB-A
(MPAK-5V)
PRSS0003DA-A
(TO-92V)
–20 to +85°C
PLZZ0004CA-A
(UPAKV)
PLZZ0004CA-A
(UPAKV)
PLSP0003ZB-A
(MPAKV)
PLSP0003ZB-A
(MPAKV)
PLZZ0004CA-A
(UPAKV)
PLZZ0004CA-A
(UPAKV)
–20 to +85°C
HA17431 Series
Pin Arrangement
MPAK-5V
NC
5
PS
4
MPAKV
(HA17431VLTP)
A
3
1 2 3
REF A K
1
REF
2
K
FP-8DGV
REF NC
8
7
A
6
MPAKV
(HA17432VLTP)
A
3
1
K
UPAKV
(HA17431UA/VUP)
A
2
REF
1
REF
TO-92V
NC
5
2
A
UPAKV
(HA17432UA/VUP)
A
3
K
1
K
2
A
3
REF
TO-92MODV
Mark side
Mark side
1
1
K
2
3
4
NC NC NC
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 3 of 19
2
3
REF A
K
1
2
3
REF A
K
HA17431 Series
Absolute Maximum Ratings
(Ta = 25°C)
Ratings
Item
Cathode voltage
Symbol
VKA
PS term. voltage
VPS
Continuous cathode current
IK
Reference input current
Iref
HA17431VLP
HA17431VP
Unit
16
16
V
1
1,2,3
VKA to 16
—
V
–50 to +50
–50 to +50
mA
–0.05 to +10
–0.05 to +10
mA
4
5
Power dissipation
PT
150 *
500 *
mW
Operating temperature range
Topr
–20 to +85
–20 to +85
°C
Storage temperature
Tstg
–55 to +150
–55 to +150
°C
HA17431VUP/HA17432VUP
HA17431VLTP/HA17432VLTP
Unit
Notes
4, 5
Ratings
Item
Symbol
Notes
Cathode voltage
VKA
16
16
V
1
PS term. voltage
VPS
—
—
V
1,2,3
Continuous cathode current
IK
–50 to +50
–50 to +50
mA
Reference input current
Iref
–0.05 to +10
–0.05 to +10
mA
Power dissipation
PT
800 *8
150 *4
mW
Operating temperature range
Topr
–20 to +85
–20 to +85
°C
Storage temperature
Tstg
–55 to +150
–55 to +150
°C
HA17431PNA
HA17431P/PA
Unit
40
40
V
4, 8
Ratings
Item
Symbol
Cathode voltage
VKA
Continuous cathode current
IK
–100 to +150
–100 to +150
mA
Reference input current
Iref
–0.05 to +10
–0.05 to +10
mA
Power dissipation
PT
500 *5
800 *6
mW
Operating temperature range
Topr
–20 to +85
–20 to +85
°C
Storage temperature
Tstg
–55 to +150
–55 to +150
°C
HA17431FP/FPA
HA17431UA/HA17432UA
Unit
40
40
V
Notes
1
5, 6
Ratings
Item
Symbol
Cathode voltage
VKA
Continuous cathode current
IK
–100 to +150
–100 to +150
mA
Reference input current
Iref
–0.05 to +10
–0.05 to +10
mA
Power dissipation
PT
500 *7
800 *8
mW
Operating temperature range
Topr
–20 to +85
–20 to +85
°C
Storage temperature
Tstg
–55 to +125
–55 to +150
°C
Notes
1
7, 8
Notes: 1. Voltages are referenced to anode.
2. The PS pin is only provided by the HA17431VLP.
3. The PS pin voltage must not fall below the cathode voltage. If the PS pin is not used, the PS pin is
recommended to be connected with the cathode.
4. Ta ≤ 25°C. If Ta > 25°C, derate by 1.2 mW/°C.
5. Ta ≤ 25°C. If Ta > 25°C, derate by 4.0 mW/°C.
6. Ta ≤ 25°C. If Ta > 25°C, derate by 6.4 mW/°C.
7. 50 mm × 50 mm × 1.5mmt glass epoxy board (5% wiring density), Ta ≤ 25°C. If Ta > 25°C, derate by 5
mW/°C.
8. 15 mm × 25 mm × 0.7mmt alumina ceramic board,Ta ≤ 25°C. If Ta > 25°C, derate by 6.4 mW/°C.
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 4 of 19
HA17431 Series
Electrical Characteristics
HA17431VLP/VP/VUP/VLTP, HA17432VUP/VLTP
(Ta = 25°C, IK = 10 mA)
Item
Reference voltage
Symbol
Vref
Min
2.475
Typ
2.500
Max
2.525
Unit
V
Test Conditions
VKA = Vref
Reference voltage
temperature deviation
Reference voltage
temperature coefficient
Vref(dev)
—
10
—
mV
∆Vref/∆Ta
—
±30
—
ppm/°C
VKA = Vref,
Ta = –20°C to +85°C
VKA = Vref,
0°C to 50°C gradient
Reference voltage regulation
Reference input current
∆Vref/∆VKA
Iref
—
—
2.0
2
3.7
6
mV/V
µA
Reference current
temperature
deviation
Minimum cathode current
Iref(dev)
—
0.5
—
µA
R1 = 10 kΩ, R2 = ∞,
Ta = –20°C to +85°C
Imin
—
0.4
1.0
mA
VKA = Vref
Off state cathode current
Dynamic impedance
Ioff
ZKA
—
—
0.001
0.2
1.0
0.5
µA
Ω
VKA = 16 V, Vref = 0 V
VKA = Vref,
IK = 1 mA to 50 mA
Bypass resistance
Bypass resistance
temperature coefficient
RPS
∆RPS/∆Ta
1.6
—
2.0
+2000
2.4
—
kΩ
ppm/°C
IPS = 1 mA
IPS = 1 mA,
0°C to 50°C gradient
Notes
1
VKA = Vref to 16 V
R1 = 10 kΩ, R2 = ∞
2
3
3
HA17431P/PA/FP/FPA/PNA/UA, HA17432UA
(Ta = 25°C, IK = 10 mA)
Item
Reference voltage
Symbol
Vref
Min
2.440
Typ
2.495
Max
2.550
Unit
V
Test Conditions
VKA = Vref
Notes
A
Reference voltage
temperature deviation
Vref(dev)
2.395
—
2.495
5
2.595
(17)
mV
VKA = Vref
Normal
1, 4
Reference voltage
regulation
∆Vref/∆VKA
—
—
1.4
1
3.7
2.2
mV/V
VKA = Vref to 10 V
VKA = 10 V to 40 V
Reference input current
Reference current
temperature deviation
Iref
Iref(dev)
—
—
3.8
0.5
6
(2.5)
µA
µA
R1 = 10 kΩ, R2 = ∞
R1 = 10 kΩ, R2 = ∞,
Ta = 0°C to +70°C
Minimum cathode current
Off state cathode current
Imin
Ioff
—
—
0.4
0.001
1.0
1.0
mA
µA
VKA = Vref
VKA = 40 V, Vref = 0 V
Dynamic impedance
ZKA
—
0.2
0.5
Ω
VKA = Vref,
IK = 1 mA to 100 mA
Notes: 1. Vref(dev) = Vref(max) – Vref(min)
Vref(max)
Vref(dev)
Vref(min)
Ta Min
Ta Max
2. Imin is given by the cathode current at Vref = Vref(IK=10mA) – 15 mV.
3. RPS is only provided in HA17431VLP.
4. The maximum value is a design value (not measured).
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 5 of 19
Ta = 0°C to +70°C
4
2
HA17431 Series
MPAK-5V(5-pin), MPAKV(3-pin) and UPAKV Marking Patterns
The marking patterns shown below are used on MPAK-5V, MPAKV and UPAKV products. Note that the product code
and mark pattern are different. The pattern is laser-printed.
HA17431VLP
NC
(1)
(2)
4
P
(a)
(b)
REF
HA17431VLTP
HA17432VLTP
A
A
PS
(4)
(c)
A
K
(1)
(2)
3
A
(a)
(b)
4
A
(1)
(2)
(c)
REF
HA17431UA
REF
(4)
K
K
A
B
(a)
(b)
(c)
4
C
(1)
(2)
REF
HA17431VUP
REF
A
4
R
(1)
(2)
HA17432VUP
K
A
A
(5)
(3)
(4)
S
(2)
A
Band mark
K
REF
4
(1)
A
Band mark
Band mark
K
(4)
K
A
Band mark
(4)
(2)
3
HA17432UA
A
(3)
(1)
REF
(5)
(3)
(4)
(5)
(3)
(4)
(5)
Notes: 1. Boxes (1) to (5) in the figures show the position of the letters or numerals, and are not actually marked on the
package.
2. The letters (1) and (2) show the product specific mark pattern.
Product
(1)
(2)
HA17431VLP
HA17431VUP
4
4
P
R
HA17432VUP
HA17431VLTP
4
3
S
A
HA17432VLTP
HA17431UA
3
4
B
A
HA17432UA
4
C
3. The letter (3) shows the production year code (the last digit of the year) for UPAKV products.
4. The bars (a), (b) and (c) show a production year code for MPAK-5V and MPAKV products as shown below.
After 2015 the code is repeated every 8 years.
Year
2007
2008
2009
2010
2011
2012
2013
2014
(a)
Bar
Bar
None
None
None
None
Bar
Bar
(b)
(c)
Bar
None
Bar
Bar
None
None
None
Bar
Bar
None
5. The letter (4) shows the production month code (see table below).
Production month Jan. Feb. Mar. Apr.
May. Jun. Jul.
Marked code
A
B
C
D
E
F
6. The letter (5) shows manufacturing code. For UPAKV products.
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 6 of 19
G
Bar
Bar
None
None
None
Bar
Aug.
Sep.
Oct.
Nov.
Dec.
H
J
K
L
M
HA17431 Series
Characteristics Curves
HA17431VLP/VP/VUP/VLTP, HA17432VUP/VLTP
Reference voltage Vref (V)
Reference Voltage Temperature Characteristics
2.575
VK=Vref
IK=10mA
2.550
2.525
K
2.500
REF
IK
V Vref
A
2.475
2.450
2.425
–20
0
20
40
60
80 85
Ambient temperature Ta (°C)
Cathode Current vs. Cathode Voltage Characteristics 1
1.0
VK=Vref
Cathode current IK (mA)
Cathode current IK (mA)
VK=Vref
0.5
0
Cathode Current vs. Cathode Voltage Characteristics 2
50
0
1
2
3
4
Cathode voltage VK (V)
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 7 of 19
5
1V/DIV
0
–50
–5
0
Cathode voltage VK (V)
5
1V/DIV
HA17431 Series
Dynamic impedance ZKA (Ω)
Dynamic Impedance vs. Frequency Characteristics
100
10
K
1
IK
REF
io
V VK
A
0.1
iO = 2 mAP-P
0.01
100
ZKA=
1k
10k
100k
VK
(Ω)
iO
1M
Frequency f (Hz)
0
∅
50
GVOL
–180
0
Phase delay ∅ (degrees)
Open loop voltage gain GVOL (dB)
Open Loop Voltage Gain, Phase vs. Frequency Characteristics
220Ω
Vo
IK=10mA
15kΩ
10µF
– +
K
REF
Vi
A
8.2kΩ
–360
G = 20log
100
1k
10k
100k
Frequency f (Hz)
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 8 of 19
1M
10M
Vo
(dB)
Vi
HA17431 Series
HA17431P/PA/FP/FPA/PNA/UA, HA17432UA
Cathode current IK (mA)
Oscillation Stability vs. Load Capacitance between Anode and Cathode
1.5
150
100
Oscillation
region
Stable
region
VCC
50
CL
0
0.0001
0.001
0.01
0.1
1.0 2.0
Load capacitance CL (µF)
40
φ
30
90
20
220 Ω
15 kΩ
10 µF
10
Vin
0
10
Phase φ (degrees)
Open loop voltage gain GVOL (dB)
Open Loop Voltage Gain, Phase vs. Frequency Characteristics (1)
(With no feedback capacitance)
60
GV
IK = 10 mA
50
0
180
Vout
GND
8.2 kΩ
100
1k
10 k
100 k
Frequency f (Hz)
IK = 5 mA
10
Gυ
Gυ
180
Cf = 0.022 µF
5
φ
Cf = 0.22 µF
0
200 µF
Cf
2.4 kΩ
Vin
–4
10
50 Ω
270
2k
+ Vout
–
20 V
360
GND
100
1k
Frequency f (Hz)
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 9 of 19
10 k
Phase φ (degrees)
8
7.5 kΩ
Open loop voltage gain GVOL (dB)
Open Loop Voltage Gain, Phase vs. Frequency Characteristics (2)
(When a feedback capacitance (Cf) is provided)
HA17431 Series
Reference voltage pin Input current
Iref (µA)
Reference Voltage Pin Input Current vs. Cathode Voltage Characteristics
2.5
2.0
1.5
1.0
IK = 10 mA
0.5
0
5
10
15
20
25
30
35
40
Cathode voltage VK (V)
Reference Voltage Temperature Characteristics
2.50
VKA = Vref
IK = 10 mA
2.49
Pulse Response
Input/Output voltage VI (V)
Reference voltage Vref (V)
INPUT
(P.G)
5
4
3
OUTPUT
(Vout)
2
50 Ω
220 Ω
Vout
1
GND
2.48
2.47
2.46
2.45
P.G
f = 100 kHz
0
1
2
3
4
5
Time t (µs)
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 10 of 19
6
2.44
–20
0
20
40
60
Ambient temperature Ta (°C)
80 85
Reference Voltage Pin Input Current
Temperature Characteristics
3
Cathode Current vs. Cathode Voltage Characteristics (1)
150
R1 = 10 kΩ
R2 = ∞
IK = 10 mA
2.5
120
100
Cathode current IK (mA)
Reference voltage pin input current Iref (µA)
HA17431 Series
2
1.5
1
80
60
40
20
0
–20
VK = Vref
Ta = 25°C
–40
0.5
–60
–80
0
–20
0
20
40
60
–100
80 85
–2
Ambient temperature Ta (°C)
0.8
0.6
Imin
0.2
0
1
2
Cathode voltage VK (V)
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 11 of 19
1
2
3
Cathode Current Temperature Characteristics
when Off State
2
Cathode current when off state Ioff (nA)
Cathode current IK (mA)
VKA = Vref
Ta = 25°C
0.4
0
Cathode voltage VK (V)
Cathode Current vs. Cathode Voltage Characteristics (2)
1.2
1.0
–1
3
VKA = 40 V
Vref = 0
1.5
1
0.5
–20
0
20
40
60
Ambient temperature Ta (°C)
80 85
HA17431 Series
Application Examples
As shown in the figure on the right, this IC operates as an inverting amplifier, with the REF pin as input pin. The openloop voltage gain is given by the reciprocal of “reference voltage deviation by cathode voltage change” in the electrical
specifications, and is approximately 50 to 60 dB. The REF pin has a high input impedance, with an input current Iref of
3.8 µA Typ (V version: Iref = 2 µA Typ). The output impedance of the output pin K (cathode) is defined as dynamic
impedance ZKA, and ZKA is low (0.2 Ω) over a wide cathode current range. A (anode) is used at the minimum potential,
such as ground.
K
REF
–
+
VCC
OUT
VEE
VZ ≅ 2.5V
A
Figure 1 Operation Diagram
Application Hints
No.
1
Application Example
Reference voltage generation circuit
Vin
Vout
R
K
CL
REF
A
GND
2
GND
Variable output shunt regulator circuit
Vin
Vout
R
Iref
R1
This is circuit 1 above with variable output provided.
(R + R2)
Here, Vout ≅ 2.5 V × 1
R2
Since the reference input current Iref = 3.8 µA Typ (V version: Iref =
2 µA Typ) flows through R1, resistance values are chosen to allow
the resultant voltage drop to be ignored.
K
REF
CL
A
R2
GND
Description
This is the simplest reference voltage circuit. The value of the
resistance R is set so that cathode current IK ≥ 1 mA.
Output is fixed at Vout ≅ 2.5 V.
The external capacitor CL (CL ≥ 3.3 µF) is used to prevent oscillation
in normal applications.
GND
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 12 of 19
HA17431 Series
Application Hints (cont.)
No.
3
Application Example
Description
This is an inverting type comparator with an input threshold voltage
of approximately 2.5 V. Rin is the REF pin protection resistance,
with a value of several kΩ to several tens of kΩ.
RL is the load resistance, selected so that the cathode current IK ≥ 1
mA when Vout is low.
Single power supply inverting
comparator circuit
VCC
RL
Rin
Condition Vin
C1
Less then 2.5 V
C2
2.5 V or more
Vout
K
Vin
REF A
GND
GND
4
AC amplifier circuit
This is an AC amplifier with voltage gain G = –R1 / (R2//R3). The
input is cut by capacitance Cin, so that the REF pin is driven by the
AC input signal, centered on 2.5 VDC.
R2 also functions as a resistance that determines the DC cathode
potential when there is no input, but if the input level is low and
there is no risk of Vout clipping to VCC, this can be omitted.
To change the frequency characteristic, Cf should be connected as
indicated by the dotted line.
VCC
Cf
RL
R1
Vout
Vin
Vout
IC
VCC (VOH)
OFF
Approx. 2 V (VOL) ON
K
Cin R3
REF
A
R2
GND
R1
Gain G =
(DC gain)
R2 // R3
1
2π Cf (R1 // R2 // R3)
Cutoff frequency fc =
5
Switching power supply error
amplification circuit
V
R4
+
LED
+
R3
–
R1
(Note)
Cf
Secondary
side GND
R2
–
V
Note: LED : Light emitting diode in photocoupler
R3 : Bypass resistor to feed IK(>Imin)
when LED current vanishes
R4 : LED protection resistance
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 13 of 19
This circuit performs control on the secondary side of a transformer,
and is often used with a switching power supply that employs a
photocoupler for offlining.
The output voltage (between V+ and V–) is given by the following
formula:
(R + R2)
Vout ≅ 2.5 V × 1
R2
In this circuit, the gain with respect to the Vout error is as follows:
R2
G=
× HA17431 open × photocoupler
total gain
(R1 + R2) loop gain
As stated earlier, the HA17431 open-loop gain is 50 to 60 dB.
HA17431 Series
Application Hints (cont.)
No.
6
Application Example
Constant voltage regulator circuit
VCC
R1
Q
Vout
Description
This is a 3-pin regulator with a discrete configuration, in which the
output voltage
(R + R3)
Vout = 2.5 V × 2
R3
R1 is a bias resistance for supplying the HA17431 cathode current
and the output transistor Q base current.
R2
Cf
R3
GND
7
GND
Discharge type constant current circuit
VCC
R
since the HA17431 cathode current is also superimposed on IL.
The requirement in this circuit is that the cathode current must be
greater than Imin = 1 mA. The IL setting therefore must be on the
order of several mA or more.
Q
2.5 V
This circuit supplies a constant current of
2.5 V
IL ≅
[A] into the load. Caution is required
RS
RS
+
Load
GND
8
IL
–
Induction type constant current circuit
+
R
Load
VCC
IL
–
Q
2.5 V
GND
RS
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 14 of 19
In this circuit, the load is connected on the collector side of
transistor Q in circuit 7 above. In this case, the load floats from
GND, but the HA17431 cathode current is not superimposed on IL,
so that IL can be kept small (1 mA or less is possible). The constant
current value is the same as for circuit 7 above:
2.5 V
IL ≅
[A]
RS
HA17431 Series
Design Guide for AC-DC SMPS (Switching Mode Power Supply)
1. Use of Shunt Regulator in Transformer Secondary Side Control
This example is applicable to both forward transformers and flyback transformers. A shunt regulator is used on the
secondary side as an error amplifier, and feedback to the primary side is provided via a photocoupler.
Transformer
R1
SBD
PWM IC
HA17384
HA17385
IF
IB
VF
Phototransistor
Photocoupler
R3
R2
R5
C1
K
HA17431
V0
(–)
Vref
VK
Light
emitting diode
(+)
Output
R4
REF
A
GND
Figure 2 Typical Shunt Regulator/Error Amplifier
2. Determination of External Constants for the Shunt Regulator
A. DC characteristic determination
In figure 2, R1 and R2 are protection resistor for the light emitting diode in the photocoupler, and R2 is a bypass
resistor to feed IK minimum, and these are determined as shown below. The photocoupler specification should
be obtained separately from the manufacturer. Using the parameters in figure 2, the following formulas are
obtained:
R1 =
V0 – VF – VK
V
, R2 = F
IF + IB
IB
VK is the HA17431 operating voltage, and is set at around 3 V, taking into account a margin for fluctuation. R2
is the current shunt resistance for the light emitting diode, in which a bias current IB of around 1/5 IF flows.
Next, the output voltage can be determined by R3 and R4, and the following formula is obtained:
V0 =
R3 + R 4
× Vref, Vref = 2.5 V Typ
R4
The absolute values of R3 and R4 are determined by the HA17431 reference input current Iref and the AC
characteristics described in the next section. The Iref value is around 3.8 µA Typ. (V version: 2 µA Typ)
B. AC characteristic determination
This refers to the determination of the gain frequency characteristic of the shunt regulator as an error amplifier.
Taking the configuration in figure 2, the error amplifier characteristic is as shown in figure 3.
Gain G (dB)
G1
G2
f1
fAC
f2
When R5 ≠ 0
When R5 = 0
fOSC Frequency f (Hz)
* fOSC : PWM switching frequency
Figure 3 HA17431 Error Amplification Characteristic
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 15 of 19
HA17431 Series
In Figure 3, the following formulas are obtained:
Gain
G1 = G0 ≈ 50 dB to 60 dB (determined by shunt regulator)
G2 =
R5
R3
Corner frequencies
f1 = 1/(2π C1 G0 R3)
f2 = 1/(2π C1 R5)
G0 is the shunt regulator open-loop gain; this is given by the reciprocal of the reference voltage fluctuation
∆Vref/∆VKA, and is approximately 50 dB.
3. Practical Example
Consider the example of a photocoupler, with an internal light emitting diode VF = 1.05 V and IF = 2.5 mA, power
supply output voltage V2 = 5 V, and bias resistance R2 current of approximately 1/5 IF at 0.5 mA. If the shunt
regulator VK = 3 V, the following values are found.
R1 =
5V – 1.05V – 3V
= 316(Ω) (330Ω from E24 series)
2.5mA + 0.5mA
R2 =
1.05V
= 2.1(kΩ) (2.2kΩ from E24 series)
0.5mA
Next, assume that R3 = R4 = 10 kΩ. This gives a 5 V output. If R5 = 3.3 kΩ and C1 = 0.022 µF, the following
values are found.
G2 = 3.3 kΩ / 10 kΩ = 0.33 times (–10 dB)
f1 = 1 / (2 × π × 0.022 µF × 316 × 10 kΩ) = 2.3 (Hz)
f2 = 1 / (2 × π × 0.022 µF × 3.3 kΩ) = 2.2 (kHz)
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 16 of 19
HA17431 Series
Package Dimensions
JEITA Package Code
SC-74A
Package Name
MPAK-5
RENESAS Code
PLSP0005ZB-A
Previous Code
MPAK-5 / MPAK-5V
MASS[Typ.]
0.015g
D
A
e
Q
E
HE
LP
L
A
c
L1
A3
A
x M S
Reference Dimension in Millimeters
Symbol
Min
Nom Max
b
A
e
A2
A
e1
A1
y S
S
b
I1
c
b2
A-A Section
JEITA Package Code
SC-59A
Package Name
MPAK
Pattern of terminal position areas
RENESAS Code
PLSP0003ZB-A
D
Previous Code
MPAK(T) / MPAK(T)V
A
E
0.35
0.11
2.8
1.5
2.5
0.3
0.1
0.2
1.1
0.25
0.4
0.16
2.95
1.6
0.95
2.8
1.4
0.1
1.3
0.5
0.26
3.1
1.8
3.0
0.7
0.5
0.6
0.05
0.05
0.55
2.15
0.85
0.3
c
HE
L
A
1.0
0
1.0
MASS[Typ.]
0.011g
Q
e
A
A1
A2
A3
b
c
D
E
e
HE
L
L1
LP
x
y
b2
e1
I1
Q
LP
L1
A3
A
x M S
A
b
Reference Dimension in Millimeters
Symbol
Min Nom Max
e
A2
A
e1
A1
S
b
I1
c
b2
A-A Section
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 17 of 19
Pattern of terminal position areas
A
A1
A2
A3
b
c
D
E
e
HE
L
L1
LP
x
b2
e1
I1
Q
1.0
0
1.0
0.35
0.1
2.7
1.35
2.2
0.35
0.15
0.25
1.1
0.25
0.4
0.16
1.5
0.95
2.8
1.3
0.1
1.2
0.5
0.26
3.1
1.65
3.0
0.75
0.55
0.65
0.05
0.55
1.95
1.05
0.3
HA17431 Series
Previous Code
UPAK / UPAKV
RENESAS Code
PLZZ0004CA-A
4.5 ± 0.1
2.5 ± 0.1
4.25 Max
1.5 1.5
3.0
JEITA Package Code
P-SOP8-4.4x4.85-1.27
RENESAS Code
PRSP0008DE-B
*1
0.44 Max
0.8 Min
0.53 Max
0.48 Max
Previous Code
FP-8DGV
MASS[Typ.]
0.1g
F
D
8
(1.5)
(0.2)
φ1
Unit: mm
1.5 ± 0.1
0.44 Max
0.4
1.8 Max
MASS[Typ.]
0.050g
(2.5)
JEITA Package Code
SC-62
(0.4)
Package Name
UPAK
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
5
c
*2
E
HE
bp
Index mark
Terminal cross section
( Ni/Pd/Au plating )
1
Z
Reference
Symbol
4
e
*3
bp
x
M
A
L1
A1
θ
L
y
Detail F
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 18 of 19
D
E
A2
A1
A
bp
b1
c
c1
θ
HE
e
x
y
Z
L
L1
Dimension in Millimeters
Min Nom Max
4.85 5.25
4.4
0.00
0.1
0.35
0.4
0.20
2.03
0.45
0.15 0.20 0.25
0°
6.35
8°
6.5 6.75
1.27
0.12
0.15
0.75
0.42 0.60 0.85
1.05
HA17431 Series
Package Name
TO-92(1)
JEITA Package Code
SC-43A
RENESAS Code
PRSS0003DA-A
Previous Code
TO-92(1) / TO-92(1)V
4.8 ± 0.3
MASS[Typ.]
0.25g
Unit: mm
2.3 Max
0.7
0.60 Max
0.55 Max
12.7 Min
5.0 ± 0.2
3.8 ± 0.3
0.5 Max
1.27
2.54
Package Name
TO-92 Mod
JEITA Package Code
SC-51
RENESAS Code
PRSS0003DC-A
Previous Code
TO-92 Mod / TO-92 ModV
4.8 ± 0.4
MASS[Typ.]
0.35g
Unit: mm
0.65 ± 0.1
0.75 Max
0.7
0.60 Max
0.55 Max
1.27
2.54
REJ03D0678-0300 Rev.3.00 Apr 03, 2007
Page 19 of 19
10.1 Min
2.3 Max
8.0 ± 0.5
3.8 ± 0.4
0.5 Max
Sales Strategic Planning Div.
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Notes:
1. This document is provided for reference purposes only so that Renesas customers may select the appropriate Renesas products for their use. Renesas neither makes
warranties or representations with respect to the accuracy or completeness of the information contained in this document nor grants any license to any intellectual property
rights or any other rights of Renesas or any third party with respect to the information in this document.
2. Renesas shall have no liability for damages or infringement of any intellectual property or other rights arising out of the use of any information in this document, including,
but not limited to, product data, diagrams, charts, programs, algorithms, and application circuit examples.
3. You should not use the products or the technology described in this document for the purpose of military applications such as the development of weapons of mass
destruction or for the purpose of any other military use. When exporting the products or technology described herein, you should follow the applicable export control laws
and regulations, and procedures required by such laws and regulations.
4. All information included in this document such as product data, diagrams, charts, programs, algorithms, and application circuit examples, is current as of the date this
document is issued. Such information, however, is subject to change without any prior notice. Before purchasing or using any Renesas products listed in this document,
please confirm the latest product information with a Renesas sales office. Also, please pay regular and careful attention to additional and different information to be
disclosed by Renesas such as that disclosed through our website. (http://www.renesas.com )
5. Renesas has used reasonable care in compiling the information included in this document, but Renesas assumes no liability whatsoever for any damages incurred as a
result of errors or omissions in the information included in this document.
6. When using or otherwise relying on the information in this document, you should evaluate the information in light of the total system before deciding about the applicability
of such information to the intended application. Renesas makes no representations, warranties or guaranties regarding the suitability of its products for any particular
application and specifically disclaims any liability arising out of the application and use of the information in this document or Renesas products.
7. With the exception of products specified by Renesas as suitable for automobile applications, Renesas products are not designed, manufactured or tested for applications
or otherwise in systems the failure or malfunction of which may cause a direct threat to human life or create a risk of human injury or which require especially high quality
and reliability such as safety systems, or equipment or systems for transportation and traffic, healthcare, combustion control, aerospace and aeronautics, nuclear power, or
undersea communication transmission. If you are considering the use of our products for such purposes, please contact a Renesas sales office beforehand. Renesas shall
have no liability for damages arising out of the uses set forth above.
8. Notwithstanding the preceding paragraph, you should not use Renesas products for the purposes listed below:
(1) artificial life support devices or systems
(2) surgical implantations
(3) healthcare intervention (e.g., excision, administration of medication, etc.)
(4) any other purposes that pose a direct threat to human life
Renesas shall have no liability for damages arising out of the uses set forth in the above and purchasers who elect to use Renesas products in any of the foregoing
applications shall indemnify and hold harmless Renesas Technology Corp., its affiliated companies and their officers, directors, and employees against any and all
damages arising out of such applications.
9. You should use the products described herein within the range specified by Renesas, especially with respect to the maximum rating, operating supply voltage range,
movement power voltage range, heat radiation characteristics, installation and other product characteristics. Renesas shall have no liability for malfunctions or damages
arising out of the use of Renesas products beyond such specified ranges.
10. Although Renesas endeavors to improve the quality and reliability of its products, IC products have specific characteristics such as the occurrence of failure at a certain
rate and malfunctions under certain use conditions. Please be sure to implement safety measures to guard against the possibility of physical injury, and injury or damage
caused by fire in the event of the failure of a Renesas product, such as safety design for hardware and software including but not limited to redundancy, fire control and
malfunction prevention, appropriate treatment for aging degradation or any other applicable measures. Among others, since the evaluation of microcomputer software
alone is very difficult, please evaluate the safety of the final products or system manufactured by you.
11. In case Renesas products listed in this document are detached from the products to which the Renesas products are attached or affixed, the risk of accident such as
swallowing by infants and small children is very high. You should implement safety measures so that Renesas products may not be easily detached from your products.
Renesas shall have no liability for damages arising out of such detachment.
12. This document may not be reproduced or duplicated, in any form, in whole or in part, without prior written approval from Renesas.
13. Please contact a Renesas sales office if you have any questions regarding the information contained in this document, Renesas semiconductor products, or if you have
any other inquiries.
http://www.renesas.com
RENESAS SALES OFFICES
Refer to "http://www.renesas.com/en/network" for the latest and detailed information.
Renesas Technology America, Inc.
450 Holger Way, San Jose, CA 95134-1368, U.S.A
Tel: <1> (408) 382-7500, Fax: <1> (408) 382-7501
Renesas Technology Europe Limited
Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K.
Tel: <44> (1628) 585-100, Fax: <44> (1628) 585-900
Renesas Technology (Shanghai) Co., Ltd.
Unit 204, 205, AZIACenter, No.1233 Lujiazui Ring Rd, Pudong District, Shanghai, China 200120
Tel: <86> (21) 5877-1818, Fax: <86> (21) 6887-7898
Renesas Technology Hong Kong Ltd.
7th Floor, North Tower, World Finance Centre, Harbour City, 1 Canton Road, Tsimshatsui, Kowloon, Hong Kong
Tel: <852> 2265-6688, Fax: <852> 2730-6071
Renesas Technology Taiwan Co., Ltd.
10th Floor, No.99, Fushing North Road, Taipei, Taiwan
Tel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999
Renesas Technology Singapore Pte. Ltd.
1 Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632
Tel: <65> 6213-0200, Fax: <65> 6278-8001
Renesas Technology Korea Co., Ltd.
Kukje Center Bldg. 18th Fl., 191, 2-ka, Hangang-ro, Yongsan-ku, Seoul 140-702, Korea
Tel: <82> (2) 796-3115, Fax: <82> (2) 796-2145
Renesas Technology Malaysia Sdn. Bhd
Unit 906, Block B, Menara Amcorp, Amcorp Trade Centre, No.18, Jalan Persiaran Barat, 46050 Petaling Jaya, Selangor Darul Ehsan, Malaysia
Tel: <603> 7955-9390, Fax: <603> 7955-9510
© 2007. Renesas Technology Corp., All rights reserved. Printed in Japan.
Colophon .7.0