HA17431H Series
Shunt Regulator
ADE-204-070 (Z)
Preliminary
Rev.0
Sep. 2001
Description
The HA17431H series is a family of voltage referenced shunt regulators. The main application of these
products is in voltage regulators that provide a variable output voltage. The HA17431H series products are
provided in a wide range of packages; TO-92 insertion mounting packages and MPAK-5 (5 pin), MPAK (3
pin), UPAK surface mounting packages are available. The on-chip high-precision reference voltage source
can provide ±1% accuracy, which have a V
KA
max of 36 volts.
Features
•
The reference voltage provide 2.500 V ±1% at Ta = 25°C
•
The reference voltage has a low temperature coefficient
•
The MPAK-5 (5 pin), MPAK (3 pin) and UPAK miniature packages are optimal for use on high
mounting density circuit boards
Block Diagram
K
REF
2.500 V
+
−
A
HA17431H Series
Application Circuit Example
Switching power supply secondary-side error amplification circuit
Vout
R
R
1
K
+
–
REF
A
HA17431H Series
R
2
GND
Ordering Information
Item
Industrial use
HA17431HLP
HA17431HP
HA17431HUP
HA17432HUP
HA17431HLTP
HA17432HLTP
MPAK
Package
MPAK-5
TO-92
UPAK
Temp. Range
–20 to +85°C
Pin Arrangement
MPAK-5
NC
NC
UPAK
(HA17431HUP)
A
UPAK
(HA17432HUP)
A
TO-92
Face
REF A
K
REF
A
K
K
A
REF
MPAK
(HA17431HLTP)
A
MPAK
(HA17432HLTP)
A
REF A
K
REF
K
K
REF
Rev.0, Sep. 2001, page 2 of 15
HA17431H Series
Absolute Maximum Ratings
(Ta = 25°C)
Ratings
Item
Cathode voltage
Continuous
cathode current
Reference input
current
Power dissipation
Operating
temperature range
Storage
temperature
Symbol
V
KA
I
K
Iref
P
T
Topr
Tstg
HA17431HLP
36
–50 to +50
–0.05 to +6
150 *
2
–20 to +85
–55 to +150
HA17431HP
36
–50 to +50
–0.05 to +6
500 *
3
–20 to +85
–55 to +150
HA17431HUP/
HA17432HUP
36
–50 to +50
–0.05 to +6
800 *
4
–20 to +85
–55 to +150
HA17431HLTP/
HA17432HLTP
36
–50 to +50
–0.05 to +6
150 *
2
–20 to +85
–55 to +150
Unit
V
mA
mA
MW
°C
°C
Notes
1
Notes: 1.
2.
3.
4.
Voltages are referenced to anode.
Ta
≤
25°C. If Ta > 25°C, derate by 1.2 mW/°C.
Ta
≤
25°C. If Ta > 25°C, derate by 4.0 mW/°C.
15 mm
×
25 mm
×
t0.7mm alumina ceramic board,Ta
≤
25°C. If Ta > 25°C, derate by 6.4
mW/°C.
Rev.0, Sep. 2001, page 3 of 15
HA17431H Series
Electrical Characteristics
(Ta = 25°C, I
K
= 10 mA)
Item
Reference voltage
Reference voltage
temperature
deviation
Reference voltage
temperature
coefficient
Reference voltage
regulation
Reference input
current
Reference current
temperature
deviation
Minimum cathode
current
Off state cathode
current
Dynamic
impedance
Symbol
Vref
Vref(dev)
Min
2.475
—
Typ
2.500
10
Max
2.525
—
Unit
V
mV
Test Conditions
V
KA
= Vref
V
KA
= Vref,
Ta = –20°C to +85°C
V
KA
= Vref,
0°C to 50°C gradient
V
KA
= Vref to 36 V
R
1
= 10 kΩ, R
2
=
∞
R
1
= 10 kΩ, R
2
=
∞,
Ta = –20°C to +85°C
V
KA
= Vref
V
KA
= 36 V, Vref = 0 V
V
KA
= Vref,
I
K
= 1 mA to 50 mA
2
1
Notes
∆Vref/∆Ta
—
±30
—
ppm/°C
∆Vref/∆V
KA
Iref
Iref(dev)
—
—
—
2.0
0.6
0.5
3.7
3
—
mV/V
µA
µA
Imin
Ioff
Z
KA
—
—
—
0.06
0.001
0.2
0.2
1.0
0.5
mA
µA
Ω
Notes: 1. Vref(dev) = Vref(max) – Vref(min)
Vref(dev)
−20
Ta (°C)
+85
2. Imin is given by the cathode current at Vref = Vref
(IK=10mA)
– 15 mV.
Rev.0, Sep. 2001, page 4 of 15
HA17431H Series
MPAK-5 (5 pin), MPAK (3 pin) and UPAK Marking Patterns
The marking patterns shown below are used on MPAK-5, MPAK and UPAK products. Note that the
product code and mark pattern are different. The pattern is laser-printed.
HA17431HLP
NC
(1)
(2)
HA17431HUP
HA17432HUP
HA17431HLTP
A
HA17432HLTP
A
NC
(4)
REF
4
(1)
U
(2)
K
4 W
(1)
(2)
(1)
(2)
(4)
(1)
(2)
(4)
4
(a)
H
(b)
(c)
3
(a)
C
(b)
(c)
3
(a)
D
(b)
(c)
A
K
Band mark
K
(3)
(4)
(5)
A
A
Band mark
REF
(3)
(4)
(5)
REF
A
REF
K
K
REF
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
HA17431HLP
HA17431HUP
HA17432HUP
HA17431HLTP
HA17432HLTP
(1)
4
4
4
3
3
(2)
H
U
W
C
D
3. The letter (3) shows the production year code (the last digit of the year) for UPAK products.
4. The bars (a), (b) and (c) show a production year code for MPAK-5 and MPAK products as shown
below. After 2009 the code is repeated every 8 years.
Year
(a)
(b)
(c)
2001
None
None
None
2002
None
None
Bar
2003
None
Bar
None
2004
None
Bar
Bar
2005
Bar
None
None
2006
Bar
None
Bar
2007
Bar
Bar
None
2008
Bar
Bar
Bar
5. The letter (4) shows the production month code (see table below).
Production month
Marked code
Jan.
Feb.
Mar.
Apr.
May.
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
A
B
C
D
E
F
G
H
J
K
L
M
6. The letter (5) shows manufacturing code. For UPAK products.
Rev.0, Sep. 2001, page 5 of 15
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