HA17431G Series
Adjustable Precision Shunt Regulators
REJ03D0805-0100
Rev.1.00
Mar 10, 2006
Description
The HA17431G series is temperature-compensated adjustable precision shunt regulators. The products have improved
features such as wide operating cathode voltage range and precision than the previous products.
Output voltage can be set to any value in the range from the reference voltage (Vref) to 40 V by two external resistors.
There are two types of reference voltage accuracy sources such as
±1.0%
standard version and
±0.5%
A version with
higher precision. As for the packages, small surface-mounted types such as MPAK, MPAK-5, and UPAK are available.
Therefore, the HA17431G series is suitable for various applications that require high precision and miniaturization.
Features
•
High-precision reference voltage : 2.500 V ± 1.0% (Ta = 25°C, Standard version)
: 2.500 V ± 0.5% (Ta = 25°C, A version)
•
Maximum cathode voltage
: 40 V
•
Continuous cathode current
: 100 mA
•
K-REF pin reversing type
: HA17432G (UPAK)
•
Operating temperature range
: –40°C to +85°C
Rev.1.00 Mar 10, 2006 page 1 of 13
HA17431G Series
Block Diagram
K
REF
2.500V
+
−
REF : Reference
A : Anode
K : Cathode
A
Application Circuit Example
Switching power supply secondary-side error amplification circuit
Vout
R
R1
K
+
–
REF
A
HA17431G Series
R2
GND
Rev.1.00 Mar 10, 2006 page 2 of 13
HA17431G Series
Ordering Information
Reference Voltage (Ta = 25°C)
Application
Industrial
use
Type No.
HA17431GP
HA17431GPA
HA17431GLTP
HA17431GLTPA
HA17431GLP
HA17431GLPA
HA17431GUP
HA17432GUP
(K-REF pin reversing type)
Standard Version
2.500V
±
1.0%
A Version
2.500V
±
0.5%
Package Name
(Package Code)
TO-92
(PRSS0003DA-A)
MPAK
(PLSP0003ZB-A)
MPAK-5
(PLSP0005ZB-A)
UPAK
(PLZZ0004CA-A)
Operating
Temperature
Range
–40°C to +85°C
Pin Arrangement
•
TO-92
HA17431GP
HA17431GPA
•
MPAK
HA17431GLTP
HA17431GLTPA
A
•
MPAK-5
HA17431GLP
HA17431GLPA
NC
NC
Mark side
REF
K
(Top view)
•
UPAK
HA17431GUP
A
REF A K
(Top view)
•
UPAK
HA17432GUP
A
REF A K
REF
A
K
(Top view)
Note: REF
A
K
NC
: Reference
: Anode
: Cathode
: No connection
K
A
REF
(Top view)
Rev.1.00 Mar 10, 2006 page 3 of 13
HA17431G Series
Absolute Maximum Ratings
(Ta = 25°C)
Item
Symbol
Cathode voltage
V
KA
Continuous cathode current
I
K
Reference input current
Iref
Power dissipation
TO-92
P
T
MPAK
MPAK-5
UPAK
Operating temperature range
Topr
°C
Storage temperature
Tstg
°C
Notes: 1. Voltage values are with reference to the Anode pin.
2. Ta
≤
25°C. If Ta > 25°C, derate by –4 mW/°C.
3. Ta
≤
25°C. If Ta > 25°C, derate by –1.2 mW/°C.
4. 15 mm
×
25 mm
×
0.7mmt alumina ceramic board, Ta
≤
25°C. If Ta > 25°C, derate by –6.4 mW/°C.
Ratings
40
–50 to +100
–0.05 to +10
500
150
150
800
–40 to +85
–55 to +150
Unit
V
mA
mA
mW
Notes
1
2
3
3
4
Rev.1.00 Mar 10, 2006 page 4 of 13
HA17431G Series
Electrical Characteristics
(Ta = 25°C, I
K
= 10 mA, unless otherwise noted)
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)
∆Vref/∆Ta
∆Vref/∆V
KA
Iref
Iref(dev)
Imin
Ioff
Z
KA
Min
2.487
2.475
—
—
—
—
—
—
—
—
—
Typ
2.500
2.500
(14)
(±30)
2.0
2.0
2
(0.9)
0.4
0.001
0.2
Max
2.513
2.525
—
—
3.7
3.7
6
—
1.0
1.0
0.5
Unit
V
mV
ppm/°C
mV/V
µA
µA
mA
µA
Ω
Test Conditions
V
KA
= Vref
V
KA
= Vref,
Ta = –40°C to +85°C
V
KA
= Vref,
0°C to 50°C gradient
V
KA
= Vref to 10 V
V
KA
= 10 V to 40 V
R1 = 10 kΩ, R
2
=
∞
R1 = 10 kΩ, R
2
=
∞,
Ta = –40°C to +85°C
V
KA
= Vref
V
KA
= 40 V, Vref = 0 V
V
KA
= Vref,
I
K
= 1 mA to 100 mA
Notes
A
Standard
1, 2
1
1
3
Notes: 1. Reference values for design.
2. Vref(dev) = (Vref maximum value at Ta = –40°C to +85°C) – (Vref minimum value at Ta = –40°C to +85°C)
Maximum Vref
Vref(dev)
Minimum Vref
−40
Ta (°C)
+85
3. Definition of minimum cathode current. Imin is the cathode current value at which Vref = Vref
(IK=10mA)
– 15 mV.
I
K
10mA
Imin
0
15mV
Vref
Rev.1.00 Mar 10, 2006 page 5 of 13
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